INFLUENCE OF SEMI-RIGID JOINT ON STABILITY CAPACITY OF COUPLER STEEL TUBE FALSEWORK

Hu Changming; Che Jialing; Zhang Huazhen; Dong Pan

doi:10.13204/j.gyjz201002005

Volume 40 Issue 2

Dec. 2014

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Hu Changming, Che Jialing, Zhang Huazhen, Dong Pan. INFLUENCE OF SEMI-RIGID JOINT ON STABILITY CAPACITY OF COUPLER STEEL TUBE FALSEWORK[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(2): 20-23. doi: 10.13204/j.gyjz201002005

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INFLUENCE OF SEMI-RIGID JOINT ON STABILITY CAPACITY OF COUPLER STEEL TUBE FALSEWORK

doi: 10.13204/j.gyjz201002005

1.
1. School of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;
2.
2. Beijing Metallurgical Equipment Research &Design Co.Ltd.of MCC Group,Beijing 100029,China

Received Date: 2009-09-15
Publish Date: 2010-02-20

Abstract

Abstract

Based on the semi-rigid joint experiment,it was gained the formula of initial torsion stiffness R_k and bolt tightening moment T of right-angle coupler.On the basis of considering semi-rigid joint,it is indicated that it is rational to use imaginary horizontal force of 0.1% stability capacity in every joint to simulate initial imperfections of the frame by finite element software.Combining with the contrast of finite element analysis results and experimental results,it is the prerequisite to calculate stability capacity exactly with semi-rigid joint of falsework considered.At the same time,the descending trend of stability capacity of the falsework was evident when tightening torques of the couplers is less than 30 Nm.Therefore,during the construction process,it is indispensable to sampling inspections of the tightening torques of the couplers strictly.
- coupler steel tube falsework,
- joint,
- semi-rigid,
- stability capacity,
- torsion stiffness

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References(10)

References

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[3] 黄宝魁,徐崇宝,张铁铮,等.双排扣件式钢管脚手架整体稳定实验与理论分析[J].建筑技术,1991(9):40-45.

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