Post Tensioned Podium Slab Design















This web seminar will focus on the design of post-tensioned two way flat slabs that can be used for a multitude of building applications ranging from parking, hotel, office and podium type structures. The Post-Tensioning contractor Utracon Vietnam, has done construction bid package 03-storey podium with area about 9,000 m2 after 40 days of construction, to ensure the progress and quality as required by the design and Investor. Rebar reinforcement in this case is technically allowed by code but in our experience, a properly designed post-tensioned concrete slab will minimize cracking due to shrinkage. It features a split 15 and 22 storey tower with 3 podium levels. He has gained extensive engineering design experience at an architectural firm, at a P-T material supplier and as an engineering consultant with Cailor & Associates. Suncoast Post-Tension is North America’s largest unbonded post-tension specialist. Net, which many engineers have come to trust over the years for its accuracy and flexibility. I'm working with a building now that has 30 ft + bays with two-way post-tensioned flat slabs. Scope of Post Tension: The Post tension scope of the project for all 17 levels totals upto overall area of 2,580,000 sq. beam, post-tensioned slabs, columns) supporting a discontinuous shear wall is designed for over-strength where required by ASCE 7-10 Section 12. 0 ksi, and Grade 60 reinforcing steel. COMMERCIAL OPPORTUNITIES CCL post-tensioning results in thinner concrete slabs. Tucked in the middle of the expansion in Midtown’s Park District, Park Central is the tallest residential tower in North Hills. Aalami A must have reference book for engineers, students, contractors, building officials, and researchers. Brick and composite siding veneers with Georgian columns and arched accents. SIMCO was commissioned to carry out a condition assessment of affected elements in the basement and Podium and to provide recommendations for a cost-effective repair solution. of retail space, a 200 room hotel (not constructed), and a two-level subterranean parking facility to accommodate 1,500 vehicles. , tensioned or pulled) to a specific strength determined by the structural engineers after concrete is poured. Grade Beam (including slab depth) with 60 plf of rebar estimated 18" square concrete columns to underside of podium slab. TEAM provides Supply and Installation as well as Design and Construct solutions for post-tensioning in commercial, residential, and industrial applications, utilising the 'TEAM Post Tension System' for both bonded flat-slab and multi-strand applications. Countless millions of square feet of 8" hollow-core slabs have been the "go-to choice" for floor and roof construction in hotels, apartments, schools, prisons, and a multitude of commercial buildings for over fifty years. To maximize views for the premium units in the upper floors, more glazing and less concrete wall had to be incorporated into the design of the north (back) face of the tower at levels 30 through 38. The technical resource pages offer a wide variety of information about the precast/prestressed concrete industry. Coordinate the details and Shallow Podium Anchor callout on the construction documents. Elevated decks for both the podium levels and apartment towers will be constructed of post-tensioned concrete supported by reinforced concrete columns. The flooring system for the office floors in the west wing is post-tensioned flat slab with drop panels. No other building system accommodates creativity and practicality like Spancrete hollowcore floor and roof building systems. Alexan Uptown 12 story residential tower of approximately 540,000 sf, 8 levels of Prescient framing over 5 levels of post tensioned concrete. Post-tensioned concrete means that the concrete is poured and then the tension is applied-but it is still stressed before the loads are applied so it is still prestressed. directly to a FE Model of the hotel podium, using SCIA Engineer. of OVM multistrand type 22-strand anchorage located at the podium level to give greater column free space of 28. Net, which many engineers have come to trust over the years for its accuracy and flexibility. A pour strip, also known as a closure strip, is a section of concrete slab left open to control shrinkage and elastic shortening; it can also be utilized to provide access for stressing of post-tensioning tendons. The geometry of the tower consists of a narrow base extending upward to a bulge, where the private viewing lounge offers panoramic views of London, and then slopes back in and continues rising upward. The achievement of a watertight design was dependant upon the correct choice of concrete quality, placement and curing and an appropriate level of precompression induced by the post-tensioning. TGC Station at the. Prior to joining Simpson Strong-Tie, Scott worked for nine years as a consulting engineer. The webinar will focus on the design of post-tensioned structural slabs that support multi levels of conventional wood or metal stud framed buildings. Post-tensioning is a method of reinforcing concrete or other construction materials with high-strength steel strands/wires/cables generally known as tendons, applications include office and apartment buildings, parking structures, slabs-on-ground, bridges, sports stadiums, rock and soil anchors, and water-tanks. 2mm diameter strands. Our Scope of Works.   The tower rises out of the podium structure and is constructed with post-tensioned concrete floor slabs and cast-in-place concrete columns supported on a drilled pile foundation system. Project quality plan. Post Tensioned Slab Published on March 5, In post-tensioning the main load is taken by strands which are enclosed in sheathing. Post-tension cables are steel wires inserted into plastic sheathing laid in place while pouring the concrete slab. Opal Kawana Waters Aged Care Facility. A multi-level penthouse accommodates the top five floors of the 50-story building. Several retail spaces are provided below the podium slab. The original installer of the post-tension strands came out and repaired it under the supervision of the original engineer. Tendons today are seven high-strength steel wires wound together and placed inside a plastic duct. § slab and beams at casino, mechanical floors and tower top with window washing cranes § hybrid system at elite floors. The twisted office tower has post-tensioned slabs on office floors and reinforced-concrete slabs on mechanical floors. The podium consists of 3 levels of car park and 1 level of swimming pool and a multipurpose area. Modeling the weight of the wood/metal building by uniform loads, line loads, and point loads for the design of the post-tensioned slab will be covered. These are formed by 10 m long post-tensioned concrete cantilever walls that reach out. Both charged fat prices that the GC had to eat. The project is a 70 unit apartment complex with two levels of parking in downtown St. Ideal for use in commercial and residential construction, Quad-Deck combines the strength, security, and reliability of reinforced concrete with the energy efficiency, fast construction, and comfort of insulating concrete forms. This will cause the reduction of excavation because the parking is below grade. Information bulletins for codes, services, and construction technologies. In constructing a concrete building with a large foot print and/or post-tensioning, it is often necessary to have pour strips. Scope of Post Tension: The Post tension scope of the project for all 17 levels totals upto overall area of 2,580,000 sq. You can put carpet over the concrete for instance, but for homeowners who want to utilize the concrete instead of hide it, acid stain is a more common route. Aalami A must have reference book for engineers, students, contractors, building officials, and researchers. Neglecting to design general anchorage zones or delegating this responsibility. Post-tensioning is a method of reinforcing concrete or other construction materials with high-strength steel strands/wires/cables generally known as tendons, applications include office and apartment buildings, parking structures, slabs-on-ground, bridges, sports stadiums, rock and soil anchors, and water-tanks. Stronger, more efficient floor slab design creates longer spans and reduces the need for columns within the structure. 15 Story, 1 Million Sq/ft Cast-In-Place Superstructure with 4 story Post Tension Podium and 3 Individual Residential Towers overlooking New York City. directly to a FE Model of the hotel podium, using SCIA Engineer. I am designing a two way Post Tensioned slab, conc 5000psi, with circular columns w/ thickness 9" and 13" (courtyard and below units) for a Podium Slab. 75 m) and 8-12 inches (203-305 mm) thick below the slab soffit. The webinar will focus on the design of post-tensioned structural slabs that support multi levels of conventional wood or metal stud framed buildings. Roof construction consists of plywood sheathing over manufactured wood roof trusses with sloped top chords to achieve necessary roof drainage while. Capital Bay project by DAMAC properties for the people who seek vibrant community of like-minded individuals. The building consists of almost 90,000 square feet of space and includes approximately 70,000 square feet of post-tensioned deck. Higher steel grades may be used if needed in special cases. The majority of the wood framing bears on conventional concrete slab on grade, though there is a post-tensioned concrete podium slab in one building that supports four levels of wood framing above. Equivalent "slab-beams" were used in the model in order to determine the nonlinear response of post-tensioned slab, interaction with shear walls and columns. The Ground Level slab is a two-way mildly reinforced slab, which is used to support a landscaped patio, event space, and restaurant. Post-Tensioned Concrete Design for Podium. Two-way post-tensioned slabs is a very good system to use in storage facilities with high loads. The course will focus on practical aspects of designing elements and structures using prestressed and post-tensioned construction. Each type of slab has unique characteristics. This prestige 32 storey tall condominium tower residence is part of the Madison Centre, in the core of North York. 9/12/2014 16 455 NORTH PARK DRIVE C H I C A G O ARCH 595 IN CASE STUDY Schematic Design Process • Gravity Framing - Post ‐ Tensioned Slabs - Mild Reinforced Slabs - Steel Podium - Column Layout 455 NORTH PARK DRIVE C H I C A G O ARCH 595 IN CASE STUDY Schematic Design Process • Long ‐ Span Trusses - Height Limitations. We recommend using PT for temperature and shrinkage reinforcement. (Matrix engineering company – "Egyptian Representative of (VSL) engineering company for the design and Construct of ("Ordinary Reinforced and Pre-stressed concrete structures") Design of post-tension Slab by using RAM-Concept Some of this Project: • Cairo Festival City – Fifth Settlement – Egypt. PT slabs offer the thinnest slab type, as concrete is worked to its strengths, mostly being kept in compression. This problem most often occurs at walls that are skewed to the global x or y axes and the slab edge segment is modeled continuous past the wall end. Site adjacent to the Yonge subway with connections to the PATH, 3 neighbouring buildings centralised loading docks and parking garage. In addition, post-tensioning operations need to be carefully analyzed during both concrete placement and post-tensioning operations to ensure adequate transfer of the applied loads. “The post-tensioned design was highly efficient, requiring minimal reinforcement thanks for early collaboration with the architect and studies to set optimal column spacing coordinated with the unit layouts. The building has three levels of post-tensioned concrete (parking level, main floor, and podium slab) with 5 stories of wood above. Suspended Post-Tension Floors; Conventionally Reinforced Slab-on-Grade; Post-Tension Slab-on-Grade; Suspended Slab on Void Box Foundations; Pier and Beam Foundations; Footing Foundation; Foundation Design for Precast Concrete Structure; Concrete Basement Systems; Remedial Repair Designs; Renovation Designs; Tella Firma™ System with Post. Bridge Structures Design and construction phase analysis of bridges. The project includes a new transitional living area for existing tenants, three levels of underground parking, a twelve-story residential tower on the south side, five levels of wood-framed type III construction on a post-tensioned podium slab on the north side, and a shared elevated courtyard at the center. Clancy & Theys construction company provided outstanding Construction Management towards the Park Central project. The residential units above amenity spaces on top of the podium slabs are supported on structural steel. Tucked in the middle of the expansion in Midtown’s Park District, Park Central is the tallest residential tower in North Hills. “podium slabs” 2-way reinforced concrete slab, – Post-tensioned 10-12” Non-prestressed slabs satisfy code Some Recent Problems in Applying ACI 318. Post-tensioned slabs with cast-in-place concrete columns and walls were used to construct the building. Often a precast solution is needed for speed of construction as is needed in winter conditions. The initial scheme was designed as a post tensioned solution by Walsh Associates, typically utilising an 8. 2013 Icon City, Petaling Jaya - Post-tensioned Concrete Flat Slab for Basement Car Park and Podium Floors and Post-tensioned Concrete Transfer Plates for 4 blocks of C ondominium s ranging from 14 storeys to 36 storeys. Price From to Shortening Cracks in Post-Tensioned Structures. Demolition of Pre-stressed Concrete Structures. org A consistently increasing proportion of concrete floor slab systems in the U. Scope of work: Supply materials and accessories; design and construction for post-tensioning works Total slab area: 300. Used in IT Parks, Commercial Building, Podium Slabs, Hospitality Buildings. Some of them are outdated and many of them are frequently used everywhere. New carpark with a post tensioned podium slab over featuring external courtyards and the like. The project was one of the first in North Carolina to implement six stories of wood framed construction. In addition, post-tensioning operations need to be carefully analyzed during both concrete placement and post-tensioning operations to ensure adequate transfer of the applied loads. post-tensioned member, the one that meets the Code requirements for serviceability and strength and is the least expensive to build is usually the preferred solution. The cost of concrete slabs will vary depending upon the size and depth of the slab as well as other factors. Description STC IIC Sections Test # 2" Topping Slab Precast Concrete 14" Tee: 54. core and table form for slab • 3 detached building towers each of 38-storey high • structure of towers – central core with averaged 12m span RC columns around post-tensioned flat slab system, core wall - VSL climb form, partially in large panel gang forms slab – aluminium strutted flying form system. I am designing a two way Post Tensioned slab, conc 5000psi, with circular columns w/ thickness 9" and 13" (courtyard and below units) for a Podium Slab. To enable the new residential units to be built, the existing post tensioned roof slab will be replaced by a substantial RC transfer structure to carry the residential column layout above. A few weeks ago, GLR's very own Ashley Cagle presented a webinar entitled, "Design of Wood over Concrete Podiums" through S. Solutions apply to Simpson Strong-Tie Shallow Podium Anchor assembly only. The design of each building includes two levels of parking with a post-tensioned podium slab supporting four stories of wood-frame structure above. There are literally dozens of new tall buildings being constructed in the downtown and surrounding areas. In today’s competitive market, we understand it is imperative to our customers that we design a cost-effective foundation slab, However, were aware it is equally as important to design a high quality product which best benefits our customers’ projects today and in the future. Equivalent “slab-beams” were used in the model in order to determine the nonlinear response of post-tensioned slab, interaction with shear walls and columns. The slab is explicitly not considered part of the lateral design, in order to minimise reinforcement, particularly at the congested core wall interface. There are also 4 nos. Providing design-build and value engineering services, Build Group supplied invaluable assistance in the constructability of the remodel and helped to optimize the project. The structure of the tower was designed with large column-free floor places and includes both reinforced and post-tensioned (PT) concrete, encapsulated in an aluminium and glass facade. The podium slab was designed as a post-tensioned concrete slab to provide the most cost effective solution for the client. Brick and composite siding veneers with Georgian columns and arched accents. HISMEN HIN-NU TERRACE, Oakland, California fiber siding over wood frame over concrete podium - post-tensioned slab. The main vertical elements are reinforced concrete, providing stability against wind and seismic activity. Post-tensioned structural system allowed 2. They span 56 ft. The firm's experience shows that the total "all-in" cost of steel versus post-tensioned concrete podiums can be virtually the same in both open shop and union environments. Another benefit of utilizing a post-tensioned slab, we're able to maintain between eight and nine inch slab thickness. I am designing a Post-Tensioned Podium slab (concrete slab with 4-story wood construction ontop). architect: withee malcolm, inc. Tucked in the middle of the expansion in Midtown’s Park District, Park Central is the tallest residential tower in North Hills. stc rating, iic rating, concrete structural deck. Post-tension cables are steel wires inserted into plastic sheathing laid in place while pouring the concrete slab. Aalami A must have reference book for engineers, students, contractors, building officials, and researchers. Quality, Reliability, Assurance. Numerous White Papers, Design Manuals, and Case Studies highlight the benefits of precast/prestressed concrete. post-tensioned concrete slabs and beams which controls. I am designing a two way Post Tensioned slab, conc 5000psi, with circular columns w/ thickness 9" and 13" (courtyard and below units) for a Podium Slab. These are popular for use in residential construction where the upper stories serve as the living areas and the area below the. Is this a conventional tower design? The basements, ground floor and podium floors are conventional reinforced-concrete slabs. The Podium supports the Residential Building as well as provides a large open-air courtyard. The Post Tension Concept. Various water intrusions through expansion joints, construction joint, expansion joints, and cracks had been reported. TEAM provides Supply and Installation as well as Design and Construct solutions for post-tensioning in commercial, residential, and industrial applications, utilising the 'TEAM Post Tension System' for both bonded flat-slab and multi-strand applications. The concrete building and podium are constructed with post-tensioned concrete slabs and shear walls. While generally used in composite construction, Stramit Condeck HP® Decking also. Snow Design; Masonry Design of Steel Anchor Rods in Concrete Podium Slabs. The structure of the office blocks is basically arranged in the form of core wall plus perimeter columns pattern, with post-tensioned floor slab to minimize thickness of the floor plate. 1 SUMMARY A. The application of post-tensioned two-way podium slab permits the decrease of overall thickness of the frame. ADAPT Corporation is the. Specialty structural repair design such as: concrete restoration, Fiber Reinforced Polymer structural strengthening, bridge jacking design and heavy lifting Post-tensioned and podium slabs design Plan checking (where required by the governing authorities). We specialize in low-rise and multi-story light-frame construction. See more information about ADAPT Corporation - Structural Concrete Software, find and apply to jobs that match your skills, and connect with people to advance your career. CFS • First floor and lower level pre-cast concrete post-and-beam framing with podium slabs • X-braced CFS shear walls and pre-cast concrete stair and elevator shear walls transfer through the. One problem with doing a steel structure over a concrete structure is that ideal column spacing for each system is different. I am designing a Post-Tensioned Podium slab (concrete slab with 4-story wood construction ontop). RSI provided full-service, high-quality turnkey concrete work for the Westminster Shores project, from pile caps and grade beams through the post-tensioned roof slab. Nonstructural contributions to dynamic behavior were. Post-tensioned (PT) slabs are typically flat slabs, band beam and slabs or ribbed slabs. Steel savings Initially the podium structure had been designed using in situ concrete, but Bam Design decided that it would take too long to build, so proposed a steel-framed solution with precast concrete slabs. framed building over a concrete post tensioned podium slab to allow for below grade parking. Coordinate the details and Shallow Podium Anchor callout on the construction documents. common podium with a 20m swimming pool. 111,300 m2 of post-tensioned slab comprising 698 t of strand. Sometimes the thinner, two-way flat plate post-tensioned concrete slab is a good solution that provides the inherent required fire rating, while maintaining the lowest possible floor-to-floor height needed to stay below a height limit. POST-TENSIONING IN BUILDING STRUCTURES Ed Cross1 BE, Grad. common podium with a 20m swimming pool. 4 stories of wood framing atop cast in place post-tensioned podium slab, at grade cast in place mild-reinforced structural slab and 1 story below grade parking. For an excellent overview of PT, visit the Post-Tensioning Institute. Each set of plans that i have seen with a post tension slab has been issuesd or stamped by an engineer due to the greater design requirements - cable placement, tension strength, etc. open amenity areas and will be coordinated with architectural and interior design plans. Provides an in-depth review of concepts and procedures of practical and modern post-tensioning design and construction. In addition, the ceiling surface is flat and paint ready. " He anticipates that this project will serve as a good standard of how post-tensioning can be used for curved floor plates. The project required a high degree of coordination between all consultants in order to accommodate the large amount of post-tensioning required at the podium slab levels. 2 mm high strength strands were used according to design profiles as per the post tensioned designed. Structure Highlights: Conventional foundation, flat-plate post-tensioned concrete podium slab, special reinforced concrete shearwalls, and integrated retaining wall foundation. LOCATION: San Mateo, CA. The insulation on the bottom might work if the whole area of the slab is covered by conditioned spaces. Eimani, the managing principal of NIC Consultant, was the SEoR for BFL on the project. with thin slab post-tensioned technology coupled with 3D analysis to verify perfor-mance. Ergon Infra is promoted by experienced Structural Consultants, is a fast emerging player in post tensioning services. Minimum Concrete cube compressive strength at 28 days shall be 50 N/mm2. Advantages of podium slabs. Either bad design or inferior construction. post-tensioned concrete buildings including parking structures, office buildings, retail buildings, residential buildings (apartments, condominiums and assisted living facilities) and residential slabs-on-ground. ***** PART 1 GENERAL 1. He has gained extensive engineering design experience at an architectural firm, at a P-T material supplier and as an engineering consultant with Cailor & Associates. Brick and composite siding veneers with Georgian columns and arched accents. considerations, especially in a post-tension poured-in-place design, because there is so much going on in the slab—including (among other things) the post-tension tendons, rebar, utilities, embed plates, additional steel at the top of columns, additional steel at raised curbs, block-outs and drainpipes. These are popular for use in residential construction where the upper stories serve as the living areas and the area below the. This was achieved by using a post-tensioned concrete slab with post-tensioned upturn concrete beams. levels of post-tensioned concrete slabs supported by concrete columns and non-bearing special reinforced CMU shear walls. The technical resource pages offer a wide variety of information about the precast/prestressed concrete industry. Post-tensioned concrete synonyms, Post-tensioned concrete pronunciation, Post-tensioned concrete translation, English dictionary definition of Post-tensioned concrete. • Post-tensioned slab foundation design • Raised concrete podium design • Steel • Concrete • Masonry. The average cost of a concrete slab will be between $5 and $7 dollars per square foot or $135 and $189 per cubic yard. Usually these slabs are situated above parking levels and as such require higher fire ratings and reduced sound transmission. The project required a high degree of coordination between all consultants in order to accommodate the large amount of post-tensioning required at the podium slab levels. Gravity framing (e. Usually these slabs are situated above parking levels and as such require higher fire ratings and reduced sound transmission. •design concept § structural system: § concrete shear walls. The 33-storey building stands 80m tall (above MSL) and comprises of 5 basement parking levels, 12 hotel podium levels and 16 hotel tower levels. We have experience with a broad array of structural systems commonly used in multi-family construction such as: two-way, flat plate, post-tensioned slab, one-way slab, metal-plate connected wood trusses, structural and gypsum sheathing shear walls, CMU and cast-in-place concrete shaft walls, structural steel framing, and composite metal deck. Tucked in the middle of the expansion in Midtown’s Park District, Park Central is the tallest residential tower in North Hills. DESIGN Upper 7 stories: Cold-formed steel walls, C-joist floors and flat CFS roof trusses. I assume that you known about RCC now what happens in prestress structure intensionally stresse. The project was one of the first in North Carolina to implement six stories of wood framed construction. Modeling the weight of the wood/metal building by uniform loads, line loads, and point loads for the design of the post-tensioned slab will be covered. Unbonded Tendons" publication • Establish consistent sign convention for gravity loads and primary moment, Pe NPCA 16 The Precast Show 2014 Preliminary Design Minimum Slab Thickness Span/Depth Ratio (Governed by Fire Rating, IBC 2003) Source: Design of Post-Tensioned Slabs With Unbonded Tendons; 3rd Ed. pt-structures. 5 metres from the building face presented a formidable design challenge. The geometry of the tower consists of a narrow base extending upward to a bulge, where the private viewing lounge offers panoramic views of London, and then slopes back in and continues rising upward. Post-tensioned systems also give the advantage of column-free space and reduced floor to floor height - lower loads on columns results in reduced costs for foundations. Prior to joining Simpson Strong-Tie, Scott worked for nine years as a consulting engineer. and are spaced at 25-ft. Test check list. This project included the design of two buildings. For the Medical Office. Unbonded Tendons" publication • Establish consistent sign convention for gravity loads and primary moment, Pe NPCA 16 The Precast Show 2014 Preliminary Design Minimum Slab Thickness Span/Depth Ratio (Governed by Fire Rating, IBC 2003) Source: Design of Post-Tensioned Slabs With Unbonded Tendons; 3rd Ed. beam, post-tensioned slabs, columns) supporting a discontinuous shear wall is designed for over-strength where required by ASCE 7-10 Section 12. Design of floor structures ground mid-podium and upper level strengthened the design experience in reinforced concrete design. In the design of structures, building code requirements for fire resistance are sometimes overlooked and this may lead to costly mistakes. To understand the feasibility of this design alternative, a cost analysis will be performed and compared to the existing design. A minimum of 7 years of project engineer experience with concrete commercial projects - concrete projects consisting of shear walls, columns, slab on grade, and post tensioned podium decks for. TEAM’s value add to this development. Post-tensioned slabs and beams shrink more than conventionally reinforced slabs and beams due to the axial anchor forces. and 60 + Floors in Tower 1 And Tower 2. The advantage of post-4 tensioned steel is reduced. Generally speaking the perception is that a post tensioned sport court is more expensive than a cast in place slab. A flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns. of OVM multistrand type 22-strand anchorage located at the podium level to give greater column free space of 28. The Siam Paragon One of the most recognized large shopping complex in Bangkok. This was achieved by using a post-tensioned concrete slab with post-tensioned upturn concrete beams. Floor mass was lumped at centre of mass location and rigid diaphragm assumption was applied in the tower floors. "When you drill into a post-. Search for more Post Tensioning Installation Engineer jobs in Dhaka, Bangladesh and other Middle East countries. 2 million pounds of force and was designed as a staged construction girder. Structure Highlights: Conventional foundation, flat-plate post-tensioned concrete podium slab, special reinforced concrete shearwalls, and integrated retaining wall foundation. Test check list. This prestige 32 storey tall condominium tower residence is part of the Madison Centre, in the core of North York. apartments over post tension podium parking garage. The subterranean parking structure utilizes one-way post-tensioned slabs with wide, shallow post-tensioned beams to create. For an excellent overview of PT, visit the Post-Tensioning Institute. The podium slab is post-tensioned concrete supported by cast-in-place columns and reinforced concrete walls which also laterally braces the podium. We are experienced in the analysis and design of the foundation system to support the loads imposed by the structure above which include:. At MGA Structural Engineering, we specialize in a variety of services, including:-- Post-tensioned concrete podium structures-- Post-tensioned concrete parking structures-- Strengthening of buildings and building components by use of external post-tensioning-- Strengthening of buildings and building components by use of fiber reinforced. His experience includes the design and analysis of concrete structures, including post-tensioned slab design, concrete lateral systems and foundations. The residential development above the podium level and at townhome units at grade is all type VA wood-framed construction with plywood floor diaphragms and shear walls. Podium construction works best for 5-7 stories in a hotel or multi-family occupancy type as it is faster and more cost effective than block and plank construction. OCO Consult (Moh. ' Due to the presence of shallow boulders and hard layers, bored-pile foundation has been used. Post tension method statement. making the valuable savings in floor to floor height. This design by the tendon installer leaves only one option for the Structural Engineer of Record & (more importantly the Architect) and that is to design the structure as a Shear Wall Structure. Suncoast Post-Tension is North America’s largest unbonded post-tension specialist. James Shin to write up this chapter. n concrete that contains steel wires, cables, etc, that are prestressed within their elastic limit to counteract the stresses that will occur under load. The podium and garage are CIP post-tensioned concrete slabs. You can put carpet over the concrete for instance, but for homeowners who want to utilize the concrete instead of hide it, acid stain is a more common route. The Post-Tensioning contractor Utracon Vietnam, has done construction bid package 03-storey podium with area about 9,000 m2 after 40 days of construction, to ensure the progress and quality as required by the design and Investor. Royal Electric was a major design-build subcontractor under the prime construction of a new 430-unit high-end, high technology apartment complex. Located on the foreshores of Port Phillip Bay. Post-tensioned concrete is a term heard more and more in the construction industry today. Chapter 15 covers the slab on grade industry, which represents more sales of post-tensioning tendons than all other post-tensioning applications combined. Post Tension design & Execution. Post tension slabs do have more of a risk then the more expensive rebar slab foundations that still seem to be preferred by local custom builders. Design started in the spring of 2018 and it is expected to be completed in the fall. Podium Slab: The wood framed building will be supported by a concrete “podium” slab. Opal Kawana Waters Aged Care Facility. And, worse, this detail does not deal with the thermal bridges associated with brick veneers. Below are the types of concrete slabs. The project includes three separate Type-V residential buildings that are supported by a common podium deck plaza. Our structural design services cover a range of requirements, including the following: • Light-frame wood construction • Light-gauge steel construction • Post-tensioned slab foundation design • Raised concrete podium design • Steel • Concrete • Masonry. We installed 41,611 square feet of post- tensioned foundations wrapped around a 5-1/2 story cast in place parking garage. Multistory Apartment Building - San Francisco, CA: Development of structural repairs for corroded, cold-formed steel framing elements of building facade. 15 Story, 1 Million Sq/ft Cast-In-Place Superstructure with 4 story Post Tension Podium and 3 Individual Residential Towers overlooking New York City. Guidelines for the Design of Post-Tensioned Floors BY BIJAN O. The residential development above the podium level and at townhome units at grade is all type VA wood-framed construction with plywood floor diaphragms and shear walls. Cancellation requests received no later than 1. Connection requirements to the podium slab are as shown in Figure 3. Generally, the thickness of RC slab varies from 100mm to 500mm. Textbook and design guide for the structural design of post-tensioned concrete. The superstructure is composed of unbonded post-tensioned concrete one-way slabs spanning 11 metres, between supporting shear walls. 5 psf of rebar. wide by 36-in deep tees, 42 in number, are a combination of pre- and post-tensioned concrete. The basement and podium structure is 360 m x 250 m in plan and consists of cast-in-place concrete foundations, columns, retaining walls and podium slab. The structural engineers at BASE used Bentley RAM Concept to design 19 unique floor slabs to be as thin as possible. Due to the overall project footprint, pour strip locations needed to be carefully located in the post-tensioned podium levels to minimize concerns associated with shrinkage of the concrete as a result of shortening from the large post-tension forces. Loads: Framing Dead Load = selfweight Superrimposed Dead Load = 25 psf partitions, M/E, misc. It reduced the self-weight of the floors, which proved the most cost-effective solution based on minimum structural zone and allowed for maximum slab spans and floor-to-ceiling heights to increase apartment value. The "XX" variable is the specified bolt length. The library building boasts of a column-free circular roof and the 20 m diameter library floor was designed as a post-tension slab supported on the perimeter columns. All slabs were designed as post-tensioned flat slabs for speed of construction and ease of coordination. Scope of work: Supply materials and accessories; design and construction for post-tensioning works Total slab area: 300. pt-structures. We partner with developers and architects that run the gamut in terms of experience - from seasoned post-tensioned concrete podium slab builders to newcomers in the field. This web seminar will focus on the design of post-tensioned two way flat slabs that can be used for a multitude of building applications ranging from parking, hotel, office and podium type structures. Selecting an effi cient slab helped limit the seismic mass, re-duced column and foundation demands Modern Steel Construction | 39 The office tower design allows for 9-ft, 6-in. Systems and Services. Minimum Concrete cube compressive strength at 28 days shall be 50 N/mm2. Rising from a multilayered podium of tiered public plazas, Soma Towers is a pair of residential high-rises located at the south edge of Bellevue, Washington’s downtown district. This was achieved by using a post-tensioned concrete slab with post-tensioned upturn concrete beams. All suspended RC slabs, other than the podium and second floor transfer slabs, will be constructed using a post tensioning system. The slab depths varied depending upon loadings and included 210mm slabs, 225mm for internal podium and the residential/hotel slabs, and 300mm slabs for the podium where there was externally located paving and planter boxes. His experience includes the design and analysis of concrete structures, including post-tensioned slab design, concrete lateral systems and foundations. metal deck. Britt, Peters and Associates provided structural design services for this new 4 story, 72 unit apartment building. Different Types of concrete slabs in construction:-There are 16 different types of Slabs in Construction. Large podium level post tensioned transfer slabs supporting up to 9 levels of units above. We had a tenant fit out project in a cheap, junky strip mall where the very unskilled GC accidentally cut through multiple post-tension strands in the foundation slab. The project includes three separate Type-V residential buildings that are supported by a common podium deck plaza. The project consists of 21 levels of post tensioned bonded system for various parking floors, office floors and helipad floor. This project included the design of two buildings. The post-tensioned concrete girder has approximately 2. A band beam and one-way slab system is being used for the banking and parking structures. The existing concrete structure originally built in the 1970’s had an unusual Post Tensioned (PT) mat slab requiring special care and sequencing procedures during the. Suspended Post-Tension Floors; Conventionally Reinforced Slab-on-Grade; Post-Tension Slab-on-Grade; Suspended Slab on Void Box Foundations; Pier and Beam Foundations; Footing Foundation; Foundation Design for Precast Concrete Structure; Concrete Basement Systems; Remedial Repair Designs; Renovation Designs; Tella Firma™ System with Post. Courtyard areas will be created from a slab fold in the elevated podium to drop the level of the podium below the level of the units. His experience includes the design and analysis of concrete structures, including post-tensioned slab design, concrete lateral systems and foundations. ft area distributed in 8 towers. is a full service turnkey commercial concrete construction company with considerable knowledge and experience in the construction of commercial, industrial, as well as, multi-family. Site adjacent to the Yonge subway with. We're currently discussing options for concrete sport courts with a client. I assume that you known about RCC now what happens in prestress structure intensionally stresse. composite decking design. This design example illustrates the seismic and wind design of a hotel that includes five stories of wood-frame construction over a one-story concrete podium slab and is assigned to Seismic Design Category D. Steel savings Initially the podium structure had been designed using in situ concrete, but Bam Design decided that it would take too long to build, so proposed a steel-framed solution with precast concrete slabs. 1 m-high office tower on top of a six-level podium structure with three basement car-parking levels. Is this a conventional tower design? The basements, ground floor and podium floors are conventional reinforced-concrete slabs. It can achieve longer spans between columns this reduces the number of columns required. Post-tensioned Flat-Slab Structural Floor System is being utilized to achieve the most efficient system construction. Client: Mushtaq and Bilal, Karachi, Pakistan.