TEST APPRAISAL AND REINFORCEMENT FOR A BUILDING'S CRACKED LARGE SPAN SIMPLY SUPPORTED BEAM

Liu Wenjing; Yang Jianzhong; Wang Ni

doi:10.13204/j.gyjz201106031

Volume 41 Issue 6

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2011 > 41(6): 142-145

Liu Wenjing, Yang Jianzhong, Wang Ni. TEST APPRAISAL AND REINFORCEMENT FOR A BUILDING'S CRACKED LARGE SPAN SIMPLY SUPPORTED BEAM[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(6): 142-145. doi: 10.13204/j.gyjz201106031

Citation:

Liu Wenjing, Yang Jianzhong, Wang Ni. TEST APPRAISAL AND REINFORCEMENT FOR A BUILDING'S CRACKED LARGE SPAN SIMPLY SUPPORTED BEAM[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(6): 142-145. doi: 10.13204/j.gyjz201106031

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TEST APPRAISAL AND REINFORCEMENT FOR A BUILDING'S CRACKED LARGE SPAN SIMPLY SUPPORTED BEAM

doi: 10.13204/j.gyjz201106031

1.
Shenzhen Branch of Institute of Building Structures,China Academy of Building Research,Shenzhen 518057,China

Received Date: 2010-08-12
Publish Date: 2011-06-20

Abstract

Abstract

More serious cracking occurred at the simply supported end of large-span simply supported notched beam for a 8-story building after completion of its main structure in Shenzhen, Through cracks census of the damaged structure and ultrasonic testing of crack depth, it was found that the cracks could be divedes into several types, which were complecated and deeper, most of them were pass through ones, thus resulting in serious influence on the bearing capacity of the members.Based on analyzing the cause of the cracks and their influencing degree on the structural safety, the measures such as support treatment, enlargement of section and bonding steel plate etc were taken, by which excellent economic and social benefits had been got.
- notched beam,
- cracking,
- support,
- reinforcement

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References(6)

References

[2] JGJ/T 1522008混凝土中钢筋检测技术规程[S].

JGJ/T 232001回弹法检测混凝土抗压强度技术规程[S].

[3] CECS 21:2000超声法检测混凝土缺陷技术规程[S].

[4] JT/T 42004公路桥梁板式橡胶支座[S].

[5] JT/T 6632006公路桥梁板式橡胶支座规格系列[S].

[6] GB 503672006混凝土结构加固设计规范[S].

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