DESIGN AND EXPERIMENTAL STUDY ON INSTANT LOSS OF POST-TENSIONED PRESTRESSED BEAMS

Zhang Haiyi; Zhang Jie; Zou Daoqin; Mao Tuming

doi:10.13204/j.gyjz201010016

Volume 40 Issue 10

Dec. 2014

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Zhang Haiyi, Zhang Jie, Zou Daoqin, Mao Tuming. DESIGN AND EXPERIMENTAL STUDY ON INSTANT LOSS OF POST-TENSIONED PRESTRESSED BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(10): 71-75. doi: 10.13204/j.gyjz201010016

Citation:

Zhang Haiyi, Zhang Jie, Zou Daoqin, Mao Tuming. DESIGN AND EXPERIMENTAL STUDY ON INSTANT LOSS OF POST-TENSIONED PRESTRESSED BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(10): 71-75. doi: 10.13204/j.gyjz201010016

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DESIGN AND EXPERIMENTAL STUDY ON INSTANT LOSS OF POST-TENSIONED PRESTRESSED BEAMS

doi: 10.13204/j.gyjz201010016

1.
1. Institute of Structural Engineering,Zhejiang University,Hangzhou 310058,China;
2.
2. Architectural Design Institute of Zhejiang University,Hangzhou 310027,China

Received Date: 2009-11-24
Publish Date: 2010-10-20

Abstract

Abstract

This paper comparatively analyzed the instant loss of post-tensioned prestressed frame beams by using embedded metal corrugated pipe and corrugated plastic pipe from the view of design.Then a site experimental study of post-tensioned prestressed frame beams by using corrugated plastic pipe was carried out to monitor the friction loss,anchorage loss,inverted arch and strain during tensioning process.The coefficient of deviation k and the coefficient of conduit friction were regressed.The theoretical and experimental values of friction loss and anchorage loss were compared.The research result shows parameters = 0.001 5 and = 0.15 adopted in the design are close to experimental value.
- corrugated plastic pipe,
- instant loss,
- friction loss,
- anchorage loss