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Post-tensioned concrete hollow board design applied research

Author: SongZhiWen
Tutor: LuZheAn
School: Wuhan University of Technology
Course: Structural Engineering
Keywords: Post-tensioned concrete hollow slab Computational analysis High-strength steel Static load test
CLC: TU378
Type: Master's thesis
Year: 2006
Downloads: 142
Quote: 2
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Abstract


With China 's rapid economic development , there has been a large number of high-rise buildings and large span , heavy load, multi-use building . Conventional prestressed hollow can no longer meet the requirements of the construction market , has also led to the shrinking of the precast industry . Rely on technological progress , the development of efficient prestressed hollow precast industry is out of the woods to adapt to China 's one effective way . Conventional prestressed hollow are pre-tensioned production , from the perspective of post-tensioned prestressed concrete hollow slab design . This post- tensioned concrete hollow board can be made ​​on site , using high-strength concrete soil, high-strength steel , save transportation costs , the span can reach 12.6m span to meet different needs. This prestressed hollow not only has good mechanical properties , but also to meet modern building requirements for prestressed hollow . We hope that this is done by the development of prefabricated a useful study . Work done as follows: 1, according to existing norms , preparing post-tensioned concrete hollow slab technical conditions , the theoretical basis for its design . 2 , the use of theory to determine the average compressive stress reinforcement design methods , and through specific examples to validate the applicability of the method . 3, using C language post-tensioned concrete hollow slab reinforcement and capacity calculation procedures for the post-tensioned concrete hollow board design and checking computer program provided . 4, through the program calculates determine 4.8m ~ 12.6m span post-tensioned concrete hollow slab reinforcement ; and checking its ultimate limit state and serviceability limit state calculations prove that the design of post-tensioned concrete hollow slab its strength, ductility and crack resistance requirements are in line with existing norms . This kind of preparation for the future post-tensioned concrete hollow slab standard drawings provide the appropriate parameters for the new generation of products prestressed hollow to provide technical support . 5 , drawing 4.8m ~ 12.6m span post-tensioned concrete hollow slab reinforcement chart , prestressed reinforcement positioning map for future concrete production and construction. 6 , the production of two prototype 7.2m boards and static load test, the force of its performance analysis , design theory and methodology proved correct and has certain practical significance.

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CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Prestressed Concrete Structure
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