Adaptsog software for the design of posttensioned slabs on grade foundations on expansive and compressible soils. Post tensioned foundations are designed using the post tensioning institute pti method first published in 1980 and recently updated with its 3rd edition. Posttensioned foundation a typical posttensioned foundation with the forms set and ready for concrete. An introduction to pt designer design of posttensioned concrete. General overview of post tensioned concrete design. A combination of these values will determine the slab stresses at the time of stressing and at service loads. Fundamentals of posttensioned concrete design for buildings part one. Fundamentals of posttensioned concrete design for buildings part one a suncam online continuing education course.
Concrete bridge design and analysis software improve decision making for design and construction while connecting and enhancing your workflow. In this video, he will describe his experiences at the site as. Pt designer is a computer program for the design and analysis of linear post tensioned concrete floor systems. Posttensioned walkways provide a structural upper fixed beam capping all walls and also provide for superior accessibility. 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. 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. In the succeeding years numerous posttensioned slabs were designed and constructed in. 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. Outlines the correct procedures for the design, construction, and maintenance of soilsupported post tensioned foundations for residential construction. Posttensioned, reinforced concrete slab design software ram. Pt slabs on ground can be placed and stamped just like with any other concrete slab. Adaptrc is for the analysis andor design of reinforced concrete beams, slabs and floor systems.
Shrinkagecompensating concrete scc posttensioned pt structural slabs. The pti design procedure is used to design a slabon grade foundation that will. Calculation and analysis of uniform thickness slabs, sometimes referred to as california flat slabs. 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. 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. Design of posttensioned slabsonground third edition. Whether the project is local or overseas, design codes from around the globe are available for reinforced concrete and posttensioned slab design. 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. Posttensioning institutes design of posttensioned slabsonground, pti design procedure 3rd edition. 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. 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.
This manual provides recommendations for economical posttensioned slabonground foundations. Jul 21, 2017 rapt is a two dimensional post tension beam slab design software. Slabonground posttensioned slabsonground provide a costefficient, highperformance solution for problems associated with groundsupported residential foundations on shrinkswell soils. 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 posttensioning, posttensioned slabsonground and externally applied posttensioning for strengthening and repair. What is the best software to design a post tension slab. Design method may not be used for twoway, post tensioned slab systems. Rapt is a two dimensional post tension beam slab design software. Design publications and software for post tensioned slabs. Post tensioned slab design, supply, install tensioned concrete. Banded tendons when designing twoway, posttensioned slab systems, in addition to the code. Because this course is intended to illustrate simplified analysis methods, we will use the efm exclusively.
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. Design and construction of posttensioned slabs on ground using. Whatever the post tensioning requirement tensioned concrete has the. Exchange project information including bridge geometry, materials, loads, prestressing strand pattern, and shear reinforcement. Fundamentals of post tensioned design for buildings. Posttensioned pt slabs are typically flat slabs, band beam and slabs or ribbed slabs. 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. Aci 360r06, design of slabsonground, presents the designer with four basic design options. Farr engineers can provide full design and documentation of posttensioned and pre stressed structures from preliminary designs to complete shop detailed tendon. It presents guidelines for soil investigation, design, and construction of posttensioned residential and light commercial slabs on expansive or compressible soils. Prestressing post tensioned concrete software design.
The general criteria used for the design, such as details of material. Longer spans can be achieved due to prestress, which can also be used to counteract deflections. Practical design of posttensioned buildings april 7, 2016 8. Posttensioned concrete design spreadsheet program a pdh. The recommendations derived from these and other studies vary from extremely light to extremely heavy. Slabonground design by using the pti ken bondy method. Ptislab can be used to design or analyze both posttensioned and conventionally reinforced slabsonground for single and multifamily residential and. Post tension slab design software structural engineering. Posttensioned jointless slabs on ground medipav group s. Whatever the posttensioning requirement tensioned concrete has the. Design and construction of posttensioned slabs on ground. Economically design post tensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality.
For general design philosophy and analysis of post tensioned concrete, the reader should refer to pdhonline course s127. The need of concrete in a rcc flat slab is comparatively more than a pt slab. Design method may not be used for twoway, posttensioned slab systems. Posttensioned slabsonground provide a costefficient, highperformance solution. Slab on ground post tensioned slabs on ground provide a costefficient, highperformance solution for problems associated with ground supported residential foundations on shrinkswell soils. Calculation and the theory by which the software works are attached with this software s index, this thing is not seen. Post tensioned foundation information for the homeowner. International advanced research journal in science. Pt designer is a computer program for the design and analysis of linear posttensioned concrete floor systems. Nov 29, 2007 aci 360r06, design of slabsonground, presents the designer with four basic design options. This course is intended to be an introductory course for structural engineers new to post tensioned.
Construction of posttensioned slabs on grade is very similar to using reinforcing. The soil below the foundation is expansive clay with properties determined by the soil engineer. This video tutorial is about pts posttension slab design which is trained by master of structural engineering mr. Calculation and the theory by which the software works are attached with this softwares index, this thing is not seen. Posttensioned foundations are designed using the posttensioning institute pti method first published in 1980 and recently updated with its 3rd edition. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Posttension basics how posttensioned slabs are built the. The compressive stresses resist the anticipated tension stresses induced by the soil movements, enhancing the performance over a nonprestressed foundation. Tanks can also be designed to withstand differential backfill. Twoway posttensioned design amsysco post tensioning. Members of the institute include major posttensioning material fabricators in the u.
Precast posttensioned tanks can be constructed above ground with the base slab below frost, completely buried, or partially outofgrade. Pt designer design of posttensioned concrete floors. Top 10 biggest mistakes made in posttensioned concrete. Fundamentals of posttensioned concrete design for buildings. 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.
Slabongrade and posttensioned slab software adaptsog. 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 design is based on hong kong building code hkcop 2004 and its amendment of june 2007. Post tensioning provides economic design and construction for concrete slabs through characteristics such as. Posttensioned slab design manual otte group software.
Suncoast has a deep bench of experienced, diverse engineering talent, who support our customers and their projects, increasing efficiency, safety and profitability. On screen warning messages for out of compliance conditions. Safe is the ultimate tool for structural engineers designing concrete floor slabs, and. Posttensioning concrete increases the many benefits associated with a concrete framed building. Post tensioned slab design manual otte group software. Cables are arranged as indicated by the engineer and chaired to run through the center of the slab. Innovative analysis, design, and loadrating functionality come together in one advanced environment with leap bridge. Threedimensional 3d finite element software for the integrated analysis and design of concrete and posttensioned floor and foundation systems. For general design philosophy and analysis of posttensioned concrete, the reader should refer to pdhonline course s127. The webinar covers the engineering and construction aspects of posttensioned slab on ground foundations for residential buildings that are.
Ptd is a finite element analysis and design software for posttensioned concrete slabs. Reinforced and posttensioned concrete slab design software. In this article, ill be giving homeowners some necessary information about the characteristics, advantages, disadvantages, and common questionsconcerns that i. Cost of steel required is also more than the combined price of steel and tendons in pt slab construction. Post tension applied to industrial flooring represents the revolution in the industry, the new idea of quality and professional approach. 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. Rapt is a two dimensional post tension beamslab design software. Construction maintenance of post tensioned slab on ground. Slab on ground design by using the pti ken bondy method. 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. 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 designs were analysed using adapt builder software with different panel sizes. Post tensioning will reduce cracking and keep any cracks that might. Post tensioned slab design, supply, install tensioned. Posttension basics how posttensioned slabs are built. Post tensioning concrete increases the many benefits associated with a concrete framed building. 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. Unreinforced concrete slab slabs reinforced to limit crack widths slabs designed to minimize cracking.
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. Onscreen warning messages for out of compliance conditions. Overview safe is the ultimate tool for designing concrete floor and foundation systems. Improve decision making for design and construction while connecting and enhancing your workflow. Increase your efficiency with bidirectional links to the industry leading bim products. 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. This video tutorial is about pts post tension slab design which is trained by master of structural engineering mr. The following table of prestress losses is recommended for the design of post tensioned members, and does not include friction or wedge set losses.
Design and construction of posttensioned sport courts. Design and analysis of slab on ground foundations on both expansive and compressible soils. Chapter 9 design of post tensioned slabs on ground, p. The design follows the pti ibc, ubc recommendations, with enhancements where necessary epti. Throughout southern louisiana and the gulf coast, coast concrete has been performing services for both residential home. The following table of prestress losses is recommended for the design of posttensioned members, and does not include friction or wedge set losses. 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. This is the structural calculation of the posttensioned ground supported foundation slab of sunshine building. Posttensioning and reinforced concrete structural analysis. 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. My background is in structural steel design and construction management. 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. 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.
Ram concept allows you to easily design complex floor geometries and incorporate changes with ease using powerful task automation and clearly organized. The present study focuses on posttensioned flat slab systems with. Banded tendons when designing twoway, post tensioned slab systems, in addition to the code. Outlines the correct procedures for the design, construction, and. Although some posttensioned slab structures had been constructed in europe quite early on, the real development took place in the usa and australia. Pt slabs offer the thinnest slab type, as concrete is worked to its strengths, mostly being kept in compression. Its more user friendly compared to other pt design softwares. Design and analysis of slabonground foundations on both expansive and compressible soils. Analysis of a slab s capacity to support on interior line load or concentrated point load. Slabs of any shape can be analysed including suspended slabs and slab on ground. Tensoslab system is based on engineering projects which define each peculiarity of the slab.
Slabs of any shape can be analysed including suspended slabs and slabonground. Concrete bridge design, analysis software leap bridge concrete. Analysis of a slabs capacity to support on interior line load or concentrated point load. Posttensioned foundations use highstrength steel to actively reinforce residential. Throughout southern louisiana and the gulf coast, coast concrete has been performing services for both residential home builders as well as commercial. The pti design method incorporates slabs with exterior and interior footings. See more ideas about concrete, concrete slab and toronto cn tower. 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. Concrete slab design software economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. Construction of posttensioned slabs on grade is very similar to using reinforcing steel, except for the tensioning step. 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. Concrete bridge design, analysis software leap bridge. Information about how posttensioned concrete is constructed.
Post tension slab design software sethguthrie civilenvironmental 18 aug 16 19. Posttensioning may be included in both slabs and beams to balance a. Whether the project is local or overseas, design codes from around the globe are available for reinforced concrete and post tensioned slab design. Posttensioned slab on ground foundations concrete construction. Posttensioned jointless slabs on ground medipav group. Standard requirements for design and analysis of shallow post tensioned concrete foundations on expansive soils. 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. For residential construction, tendons at 48 inches on center are common. Advantages of using post tensioning for your next slab on ground project. This report presents the structural engineering calculations of a posttensioned floor using parallel beams and oneway slab construction. 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. Safe is the ultimate tool for designing concrete floor.