A combination of these values will determine the slab stresses at the time of stressing and at service loads. Throughout southern louisiana and the gulf coast, coast concrete has been performing services for both residential home. The design is based on hong kong building code hkcop 2004 and its amendment of june 2007. Slabonground posttensioned slabsonground provide a costefficient, highperformance solution for problems associated with groundsupported residential foundations on shrinkswell soils. Information about how posttensioned concrete is constructed. Posttension basics how posttensioned slabs are built the. Whether the project is local or overseas, design codes from around the globe are available for reinforced concrete and posttensioned slab design. Shrinkagecompensating concrete scc posttensioned pt structural slabs. Slabs of any shape can be analysed including suspended slabs and slabonground. Analysis of a slabs capacity to support on interior line load or concentrated point load. Sep 18, 2006 typical post tensioned ribbed foundation for residential construction with tendons placed in the center of the slab at approximately 48 inches on center in each direction. Concrete slab design software economically design post tensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality.
Posttensioned pt slabs are typically flat slabs, band beam and slabs or ribbed slabs. Design and analysis of slabonground foundations on both expansive and compressible soils. Overview safe is the ultimate tool for designing concrete floor and foundation systems. Cost of steel required is also more than the combined price of steel and tendons in pt slab construction. The recommendations derived from these and other studies vary from extremely light to extremely heavy. Innovative analysis, design, and loadrating functionality come together in one advanced environment with leap bridge. For general design philosophy and analysis of post tensioned concrete, the reader should refer to pdhonline course s127. In the succeeding years numerous posttensioned slabs were designed and constructed in. Ram concept allows you to easily design complex floor geometries and incorporate changes with ease using powerful task automation and clearly organized. Actual losses, whether greater or smaller than computed values, have little effect on the design strength of the member but do affect service load conditions i. Concrete slab design software economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. Posttensioned foundations are designed using the posttensioning institute pti method first published in 1980 and recently updated with its 3rd edition. Jul 21, 2017 rapt is a two dimensional post tension beam slab design software. Whatever the post tensioning requirement tensioned concrete has the.
Post tensioning will reduce cracking and keep any cracks that might. Increase your efficiency with bidirectional links to the industry leading bim products. Posttensioning may be included in both slabs and beams to balance a. Posttensioning concrete increases the many benefits associated with a concrete framed building. General overview of post tensioned concrete design. Rapt is a two dimensional post tension beamslab design software. Typical posttensioned ribbed foundation for residential construction with tendons placed in the center of the slab at approximately 48 inches on center in each direction. Fundamentals of posttensioned concrete design for buildings part one. Post tension slab design software sethguthrie civilenvironmental 18 aug 16 19. Top 10 biggest mistakes made in posttensioned concrete. What is the best software to design a post tension slab. Posttensioned slab design manual otte group software.
The soil below the foundation is expansive clay with properties determined by the soil engineer. Although some posttensioned slab structures had been constructed in europe quite early on, the real development took place in the usa and australia. Concrete bridge design, analysis software leap bridge concrete. Calculation and analysis of uniform thickness slabs, sometimes referred to as california flat slabs. Pt slabs offer the thinnest slab type, as concrete is worked to its strengths, mostly being kept in compression. Unreinforced concrete slab slabs reinforced to limit crack widths slabs designed to minimize cracking. Post tensioned foundation information for the homeowner. It was actually the widespread use of the posttensioned slabonground which induced this interest in design procedure and in many studies of reported slab failures. Posttensioned jointless slabs on ground medipav group. Safe is the ultimate tool for structural engineers designing concrete floor slabs, and.
Prestressing post tensioned concrete software design workshop the workshop this new pt software workshop will allow structuralcivil engineers to design pt structures quickly whilst still understanding the processes involved via a more interactive input of data and output of results. Post tensioned foundations are designed using the post tensioning institute pti method first published in 1980 and recently updated with its 3rd edition. The pti design method incorporates slabs with exterior and interior footings. Pt designer is a computer program for the design and analysis of linear post tensioned concrete floor systems. Slabonground design by using the pti ken bondy method. This video tutorial is about pts post tension slab design which is trained by master of structural engineering mr.
Ptislab can be used to design or analyze both posttensioned and conventionally reinforced slabsonground for single and multifamily residential and commercial foundations on expansive and. In this video, he will describe his experiences at the site as. The present study focuses on posttensioned flat slab systems with. Posttensioned foundation a typical posttensioned foundation with the forms set and ready for concrete. Design of posttensioned slabsonground third edition. The purpose of this publication is to widen the understanding of post tensioned floor construction and show the considerable benefits which include minimum storey heights, rapid construction, economy, maximum design flexibility, minimum number of columns, optimum clear spans, jointfree, crackfree. Ptislab can be used to design or analyze both posttensioned and conventionally reinforced slabsonground for single and multifamily residential and. Concrete bridge design and analysis software improve decision making for design and construction while connecting and enhancing your workflow. Built on adaptbuilders unique truestructure modeling and analysis technology, this software provides a powerful, yet easy to use tool for the design of all types of slab systems. In this article, ill be giving homeowners some necessary information about the characteristics, advantages, disadvantages, and common questionsconcerns that i. Pt designer design of posttensioned concrete floors. Whatever the posttensioning requirement tensioned concrete has the. Adaptrc is for the analysis andor design of reinforced concrete beams, slabs and floor systems. Practical design of posttensioned buildings april 7, 2016 8.
Posttensioned walkways provide a structural upper fixed beam capping all walls and also provide for superior accessibility. Post tensioning concrete increases the many benefits associated with a concrete framed building. The purpose of this publication is to widen the understanding of posttensioned floor construction and show the considerable benefits which include minimum storey heights, rapid construction, economy, maximum design flexibility, minimum number of columns, optimum clear spans, jointfree, crackfree. Fundamentals of posttensioned concrete design for buildings. Design and analysis of slab on ground foundations on both expansive and compressible soils. Its more user friendly compared to other pt design softwares. The following table of prestress losses is recommended for the design of post tensioned members, and does not include friction or wedge set losses. Adaptsog software for the design of posttensioned slabs on grade foundations on expansive and compressible soils. The designs were analysed using adapt builder software with different panel sizes. Advantages of using post tensioning for your next slab on ground project. Posttensioning tensioned concrete offers a wide range of posttensioning solutions from mono strand systems typically used in house slabs where the ground is highly reactive, slab systems 12.
Posttensioned slabsonground provide a costefficient, highperformance solution. Post tension applied to industrial flooring represents the revolution in the industry, the new idea of quality and professional approach. Course content this spreadsheet program provides for the design and analysis of posttensioned concrete oneway beam and slab systems and twoway flat plate slab systems. Calculation and the theory by which the software works are attached with this softwares index, this thing is not seen. On screen warning messages for out of compliance conditions. See more ideas about concrete, concrete slab and toronto cn tower. Whether the project is local or overseas, design codes from around the globe are available for reinforced concrete and post tensioned slab design. This manual provides recommendations for economical posttensioned slabonground foundations. Ptd is a finite element analysis and design software for posttensioned concrete slabs. Fundamentals of post tensioned design for buildings. The webinar covers the engineering and construction aspects of posttensioned slab on ground foundations for residential buildings that are used to resist the movement of expansive and. It presents guidelines for soil investigation, design, and construction of posttensioned residential and light commercial slabs on expansive or compressible soils. Longer spans can be achieved due to prestress, which can also be used to counteract deflections. Improve decision making for design and construction while connecting and enhancing your workflow.
Course content this spreadsheet program provides for the design and analysis of post tensioned concrete oneway beam and slab systems and twoway flat plate slab systems. The pti design procedure is used to design a slabon grade foundation that will. Reinforced and posttensioned concrete slab design software. Construction of posttensioned slabs on grade is very similar to using reinforcing steel, except for the tensioning step. An introduction to pt designer design of posttensioned concrete. Medipav is the exclusive distributor for europe of the post tensioning system, defined as tensoslab, developed in partnership with prime groups producers of unbounded strands and with leader companies in the field of projecting and application of post. Post tensioned slab design, supply, install tensioned. Threedimensional 3d finite element software for the integrated analysis and design of concrete and posttensioned floor and foundation systems. Suncoast has a deep bench of experienced, diverse engineering talent, who support our customers and their projects, increasing efficiency, safety and profitability.
Slab on ground design by using the pti ken bondy method. Post tensioned slab design manual otte group software. The only concern is to always remember not to cut or drill into post tensioned concrete slabs, since once a tendon has been cut, it is very difficult to repair. The webinar covers the engineering and construction aspects of posttensioned slab on ground foundations for residential buildings that are. Posttensioned concrete design spreadsheet program a pdh. Posttensioned slab on ground foundations concrete construction. This video tutorial is about pts posttension slab design which is trained by master of structural engineering mr. Design method may not be used for twoway, post tensioned slab systems. Safe is the ultimate tool for designing concrete floor. Calculation and the theory by which the software works are attached with this software s index, this thing is not seen.
Banded tendons when designing twoway, posttensioned slab systems, in addition to the code. Design and construction of posttensioned slabs on ground using. Exchange project information including bridge geometry, materials, loads, prestressing strand pattern, and shear reinforcement. Twoway posttensioned design amsysco post tensioning. Tanks can also be designed to withstand differential backfill. Concrete bridge design, analysis software leap bridge. Chapter 9 design of post tensioned slabs on ground, p. The general criteria used for the design, such as details of material. Precast posttensioned tanks can be constructed above ground with the base slab below frost, completely buried, or partially outofgrade.
The following table of prestress losses is recommended for the design of posttensioned members, and does not include friction or wedge set losses. Nov 29, 2007 aci 360r06, design of slabsonground, presents the designer with four basic design options. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Post tensioning tensioned concrete offers a wide range of post tensioning solutions from mono strand systems typically used in house slabs where the ground is highly reactive, slab systems 12. Design and construction of posttensioned slabs on ground. Posttensioned foundations use highstrength steel to actively reinforce residential. Standard requirements for design and analysis of shallow post tensioned concrete foundations on expansive soils. Banded tendons when designing twoway, post tensioned slab systems, in addition to the code. Construction of posttensioned slabs on grade is very similar to using reinforcing. Sep 01, 2016 the webinar covers the engineering and construction aspects of post tensioned slab on ground foundations for residential buildings that are used to resist the movement of expansive and.
A highly unique and valuable chapter is presented on construction issues and structural observations, and finally chapters addressing two of the more exotic applications of post tensioning, post tensioned slabs on ground and externally applied post tensioning for strengthening and repair. Post tensioned slab design, supply, install tensioned concrete. For general design philosophy and analysis of posttensioned concrete, the reader should refer to pdhonline course s127. Post tensioning provides economic design and construction for concrete slabs through characteristics such as. Prestressing post tensioned concrete software design. My background is in structural steel design and construction management. A highly unique and valuable chapter is presented on construction issues and structural observations, and finally chapters addressing two of the more exotic applications of posttensioning, posttensioned slabsonground and externally applied posttensioning for strengthening and repair. Construction maintenance of post tensioned slab on ground. Slabongrade and posttensioned slab software adaptsog. Cables are arranged as indicated by the engineer and chaired to run through the center of the slab. Tensoslab system is based on engineering projects which define each peculiarity of the slab.
Less concrete and steel are needed for the same structural capacity and the slab stiffness is increased so that the slab is better able to resist bending caused by differential soil movements. The need of concrete in a rcc flat slab is comparatively more than a pt slab. The pti design procedure is used to design a slabon grade foundation that will respond elastically to forces the foundation is exposed to including those that are the consequence of soil pressure and soil deformation. Members of the institute include major post tensioning material fabricators in the u.
Part three continues with the study of twoway, posttensioned slab systems, including. It has been developed in close coordination with leading australian structural engineers specialising in posttensioned slab design with the aim of not just providing a powerful. This course is intended to be an introductory course for structural engineers new to post tensioned. Pt designer is a computer program for the design and analysis of linear posttensioned concrete floor systems. It was actually the widespread use of the post tensioned slab on ground which induced this interest in design procedure and in many studies of reported slab failures. Outlines the correct procedures for the design, construction, and. Slab on ground post tensioned slabs on ground provide a costefficient, highperformance solution for problems associated with ground supported residential foundations on shrinkswell soils. The compressive stresses resist the anticipated tension stresses induced by the soil movements, enhancing the performance over a nonprestressed foundation. Design and construction of posttensioned sport courts. Pt slabs on ground can be placed and stamped just like with any other concrete slab.
An easytouse and learn software for the design, analysis, and investigation of reinforced nonprestressed concrete beams, beam frames, slabs and floor systems a must have production tool in every structural engineering office. This is the structural calculation of the posttensioned ground supported foundation slab of sunshine building. Members of the institute include major posttensioning material fabricators in the u. Design method may not be used for twoway, posttensioned slab systems. Design publications and software for post tensioned slabs on grade design publications and software for post tensioned slabs on grade josecastjr structural op 14 nov 06 22. The design follows the pti ibc, ubc recommendations, with enhancements where necessary epti.
Rapt is a two dimensional post tension beam slab design software. Because this course is intended to illustrate simplified analysis methods, we will use the efm exclusively. Posttensioning and reinforced concrete structural analysis. Posttensioned jointless slabs on ground medipav group s. Fundamentals of posttensioned concrete design for buildings part one a suncam online continuing education course. Posttension basics how posttensioned slabs are built.
Aci 360r06, design of slabsonground, presents the designer with four basic design options. Throughout southern louisiana and the gulf coast, coast concrete has been performing services for both residential home builders as well as commercial. Analysis of a slab s capacity to support on interior line load or concentrated point load. Farr engineers can provide full design and documentation of posttensioned and pre stressed structures from preliminary designs to complete shop detailed tendon. Outlines the correct procedures for the design, construction, and maintenance of soilsupported post tensioned foundations for residential construction. Slabs of any shape can be analysed including suspended slabs and slab on ground. Posttensioned, reinforced concrete slab design software ram. It has been developed in close coordination with leading australian structural engineers specialising in post tensioned slab design with the aim of not just providing a powerful analytical tool but speeding up the entire post tensioned design and detailing process. For residential construction, tendons at 48 inches on center are common. Post tension slab design software structural engineering. Posttensioning institutes design of posttensioned slabsonground, pti design procedure 3rd edition.
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