COMPARATIVE STUDY OF DESIGN METHODS FOR STEEL COLUMNS STRENGTHENED BY WELDING WHILE UNDER AXIAL AND ECCENTRIC LOAD IN DIFFERENT CODES

Jiang Li; Wang Yuanqing; Dai Guoxin; Zhang Tianshen

doi:10.13204/j.gyjz201502032

Volume 45 Issue 2

Apr. 2015

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2015 > 45(2): 159-164

Tong Lewei, Zhao Jun, Zhou Feng, Chen Yiyi, Hu Xiaoping. EXPERIMENTAL INVESTIGATION ON LONGITUDINAL RESIDUAL STRESS OF Q460 HIGH-STRENGTH STEEL WELDED H-SECTION MEMBERS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 51-55,17. doi: 10.13204/j.gyjz201201009

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Jiang Li, Wang Yuanqing, Dai Guoxin, Zhang Tianshen. COMPARATIVE STUDY OF DESIGN METHODS FOR STEEL COLUMNS STRENGTHENED BY WELDING WHILE UNDER AXIAL AND ECCENTRIC LOAD IN DIFFERENT CODES[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 159-164. doi: 10.13204/j.gyjz201502032

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COMPARATIVE STUDY OF DESIGN METHODS FOR STEEL COLUMNS STRENGTHENED BY WELDING WHILE UNDER AXIAL AND ECCENTRIC LOAD IN DIFFERENT CODES

doi: 10.13204/j.gyjz201502032

Publish Date: 2015-02-20

Abstract

Abstract

The method of strengthening steel structure by welding while under load has been widely used in numerous reinforcement projects． However，despite some general tips，there are no specific provisions in present foreign technical standards． The few specific design provisions are only left within Chinese standards Technical Specification for Strengthening Steel Structures ( CECS 77 ∶ 96 ) and Technical Specification for Inspection，Assessment and Strengthening of Steel Structures ( YB 925796) ． The provisions framework of domestic code and specification to solve the problem of strengthening by welding under load was combed． And the calculation examples and analyses related to design methods of steel columns under axial and eccentric load were given． The concept of joint reinforcement coefficient was also proposed to make unified definition for the unreasonable situation in two standards． By comparison，the discrepancies and inadequacies were pointed out to provide reference for the follow-up researches and code revision．
- steel structure,
- under load,
- strengthening by welding,
- axially loaded member,
- beam-column,
- design codes

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