Any software that uses long term multipliers like 2 with a compression reinforcement factor is effectively useless for rc design and does not apply at all for pt design. Posttensioned, reinforced concrete slab design software ram. Generally, a compressive strength of 22 mpa is required before stressing can be completed. General overview of posttensioned concrete design instructor. Economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. The general criteria used for the design, such as details of material. Calculation and the theory by which the software works are attached with this softwares index, this thing is not seen. If you want the latest theory get gilbert and ranzis book on long term effects in concrete. Ram concept is a software application for the structural analysis and design of conventionally reinforced and posttensioned concrete floors, mats, and rafts.
We work with architects, developers, and contractors to push the boundaries of engineering with posttensioned concrete design. Posttensioning and prestressed design and software. Experience and expertise gained from working on projects around the world, are combined to deliver prompt, effective solutions. Its more user friendly compared to other pt design softwares. Pt slabs offer the thinnest slab type, as concrete is worked to its strengths, mostly being kept in compression. Pt designer is a computer program for the design and analysis of linear posttensioned concrete floor systems. Fundamentals of posttensioned concrete design for buildings. By combining pt design expertise and an intimate knowledge of 2d and 3d finite element analysis software modeling and analysis tools, let construpt elevate your posttensioned. Critical case study of design of a prominent posttensioned multistory building. Ram concept contains an advanced feature set that allows for the design of a wide variety of floor systems including posttensioned, reinforced concrete and hybrid systems, elevated slabs and mat. Instantly download a sample cad collection search for drawings browse s of 2d cad drawings, specifications, brochures, and more. In this free webinar dirk bondy and bryan allred discusses the latest edition of their book, posttensioned concrete principles and practice 3rd edition as well as present the latest version. This is part two of a threepart course that covers the fundamentals of post tensioned concrete design for building structures using unbonded tendons.
This is part one of a threepart course that covers the fundamentals of post tensioned concrete design for building structures using unbonded tendons. Prestressing post tensioned concrete software design. Whatever the posttensioning requirement tensioned concrete has the. It is substantially prestressed during production, in a manner that strengthens it against tensile forces which will exist when in service 35 this compression is produced by the tensioning of highstrength tendons located within or adjacent to the concrete and is done to improve the performance of the concrete in service. Net, which many engineers have come to trust over the years for its accuracy and flexibility. This course is intended as an introductory course for structural engineers new to posttensioned concrete design and is a refresher for experienced structural engineers. Software pt designer is a computer program for the design and analysis of linear posttensioned concrete floor systems.
Sensors for post tensioned concrete learn about the advantages of post tensioning concrete, or pt. Sensors for post tensioned concrete concrete sensors. We specialize in analysis and design software for precastprestressed concrete in both the transportation and commercial markets. With the support of our inhouse stateoftheart design software, we are able to implement the latest techniques for applying and installing the pte system. Construpt specialized structural engineering for post. The program is divided into three separate screens, which correspond to the three major areas of concern in the design of a posttensioned member. 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. Post tension slab design software structural engineering. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Posttensioning allows developers and architects to create large, open spans within residential and commercial developments, reducing floor thicknesses and. My background is in structural steel design and construction management. Posttension concrete slabs design course shift learning. Eriksson software is an engineering software development firm located in tampa, florida.
Posttensioning concrete increases the many benefits associated with a concrete framed building. A condition in which the member is stressed via tensioned tendons prior to. Cypecads posttensioned concrete slabs for buildings module has been designed to carry out the design of the passive reinforcement of posttensioned slabs, using the forces that have been obtained from analysing the posttensioned tendons bonded or unbonded, whose properties have been introduced by the program users posttensioned technology has different degrees of acceptance in. Support multiple design codes, including us aashto lrfd and lfd, canadian chbdc, and indian irc working stress and limit states design. Application of 2d strip and 3d finite element method based software in design of posttensioned buildings. The company uses the latest design software which is continually updated to reflect current international construction codes of practice. Durability aspects of present pt systems, key design concepts, code requirements, and practical design and construction tips will also be discussed. This book is destined to become the definitive work on the design of posttensioned concrete buildings for. Design of posttensioned floors for wind and earthquake forces. Net can be used to design and analyze prismatic frames where the crosssection of the beams or slabs can vary from one span to another span, while the crosssection remains constant between supports in.
A 2 2area 2 a c 2 2 posttensioned concrete design table 11 list of symbols used in the aci 31808 code cp area enclosed by the outside perimeter of the section, in a g gross area of concrete, in a 2 l total area of longitudinal reinforcement to resist torsion, in a o area enclosed by the shear flow path, sqin a oh area enclosed by the centerline of the outermost closed. Concrete bridge design, analysis software leap bridge. Adopting post tensioned concrete means that a designer can achieve greater span widths and thinner slabs for the same design load. This course is intended to be an introductory course for structural engineers new to posttensioned concrete design, and is a good refresher for experienced structural engineers. Design seminar descriptions posttensioning institute. Concrete slab design software economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. Smaller deflections the larger second moment of area greatly reduces. Posten x posttension and reinforced concrete software tiltup innovative tiltup design software and cad details concret reinforced concrete software. Service stress analysis, ultimate moment strength and ultimate beam shear analysis. Eriksson software precastprestressed concrete design. Evaluation of concrete floors for vibration and vibration control. The design is based on hong kong building code hkcop 2004 and its amendment of june 2007. Understanding of trends in building information modeling related to posttensioning. Calculation and the theory by which the software works are attached with this softwares index, this thing is not seen on other softwares.
The software is extremely easy to use and is intended for both occasional and regular designers of posttensioned concrete floor systems. This spreadsheet program provides for the design and analysis of posttensioned concrete oneway beam and slab systems and twoway flat plate slab systems. Beams of prismatic and other cross sections, with either constant or variable cross sections. Pt designer design of posttensioned concrete floors. Rapt is a two dimensional post tension beamslab design software. Ram concept allows you to easily design complex floor geometries and incorporate changes with ease using powerful task automation and clearly. In 1971, hugh oneil created posten to enable rapid, detailed and efficient designs of posttensioned and reinforced concrete structures. Longer spans can be achieved due to prestress, which can also be used to counteract deflections. Smaller section sizes since psc uses the whole concrete section, the second moment of area is bigger and so the section is stiffer.
The program is developed around the robust computational core of two popular programs ptdata. Prestressed concrete is a form of concrete used in construction. Support everyday concrete bridges of all types, including precast and castinplace, reinforced, pretensioned, and posttensioned. Post tensioning design and construction administration. Design publications and software for post tensioned slabs. Members of the institute include major posttensioning material fabricators in the u. Posttensioned and reinforced concrete design software. Post tension slab design software post tension slab design software. 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. Posttensioned concrete design spreadsheet program a pdh. 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. Today posten engineering systems provides this same power to you.
Posttensioning is the primary method of prestressing, where the tendons are stressed after the masonry has been placed. Posttensioned pt slabs are typically flat slabs, band beam and slabs or ribbed slabs. Posten post tensioned and reinforced concrete design. This tek focuses on the design of concrete masonry walls constructed with vertical posttensioned tendons. Design and software expertise in posttensioning and prestressed concrete for over 30 years, adapt corporation has provided a full range of software products and engineering services for the modeling, analysis and design of prestressed pre or posttensioned concrete structures. Posttensioned and prestressed concrete building design is everchanging and largely driven by safety, economy, and efficiency while meeting aggressive design demands. Posttensioned concrete is typically specified having an early age strength requirement. For general design philosophy and analysis of posttensioned concrete, the reader should refer to pdhonline course s127. Automated design of elevated slabs and gound supported structures autodesk authorized developer premium structural engineering partner post tensioning institute pti american concrete institute aci sframe software, inc. What is the best software to design a post tension slab. The following table of prestress losses is recommended for the design of posttensioned members, and does not include. Our topnotch engineering team expertly analyses project details and identifies opportunities to optimize the. Need suggestions for a good pt software and design books with examples of post tensioned slabs on grade. This report presents the structural engineering calculations of a posttensioned floor using parallel beams and oneway slab construction.
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