Source Journal of Chinese Scientific and Technical Papers
Included as T2 Level in the High-Quality Science and Technology Journals in the Field of Architectural Science
Core Journal of RCCSE
Included in the CAS Content Collection
Included in the JST China
Indexed in World Journal Clout Index (WJCI) Report
Xu Chunlin, Ai Jun, Chen Bin, Lin Shen, Lu Yaoqing. EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF DAMAGED BEAMS STRENGTHENED WITH PRESTRESSED CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(7): 129-132. doi: 10.13204/j.gyjz201107028
Citation: Sun Bin, Niu Ditao, Li Linfeng, Wang Qinglin. TEST STUDY AND ANALYSIS ON STEEL STRESS OF SIMULATED HEAVILY CORRODED R. C. BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(5): 66-70. doi: 10.13204/j.gyjz200805016

TEST STUDY AND ANALYSIS ON STEEL STRESS OF SIMULATED HEAVILY CORRODED R. C. BEAMS

doi: 10.13204/j.gyjz200805016
  • Received Date: 2007-02-09
  • Publish Date: 2008-05-20
  • Due to deterioration of bond strength caused by corrosion, cooperative working capacity between steel bar and concrete is degrading, which makes steel strain lag behind concrete tensile strain. When the member corroded heavily, bond stress between steel bar and concrete is almost lost, and concrete in the compression zone may be failure before tensile steel bar arrives its yielding strain, which may make the member form a surplus reinforcement beam due to bond failure test. Simulation and finite element analysis on simulated corroded unbonded R. C. beams are made to investigate factors affecting the level of steel stress and its affecting rules in the limit states without bond. The relation between steel stress and reinforcement index of unbonded R. C. beams is established, which can be used to evaluate the bearing capacity of heavily corroded beams, and which can also be helpful to study the degrading mechanism and calculating method on bearing capacity for ordinary corroded R. C. beams.
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    [4] 牛荻涛, 卢 梅, 王庆霖. 锈蚀钢筋混凝土梁正截面受弯承载力计算方法研究. 建筑结构, 2002, 32(10) : 14-17
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    [7] 王庆霖, 池永亮, 牛荻涛. 锈后无粘结钢筋混凝土梁的模拟试验与分析. 建筑结构, 2001, 31(4) : 51-53
    [8] JGJPT 92-93 无粘结预应力混凝土结构技术规程
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