玻璃纤维加固梁柱结构抗连续倒塌性能数值分析

Numerical Analysis of Progressive Collapse Behavior of Glass Fiber Reinforced Polymer Strengthened Beam column Structures

摘要:

根据已有试验结果，采用有限元程序软件MSC.Marc，对不同钢筋构造形式和采用玻璃纤维增强材料（GFRP）加固的钢筋混凝土梁柱结构进行了数值分析，研究了其抗连续倒塌性能.分析结果与试验结果吻合较好，表明此分析方法对于加固混凝土梁柱结构抗连续倒塌问题的研究是实用有效的.同时，通过该研究结果，证明了采用GFRP加固可以提高框架结构的抗连续倒塌性能.

Abstract:

Based on the experimental results of the progressive collapse behavior of beam column structures, which had different structural details or were strengthened with different measures by glass fiber reinforced polymer (GFRP) sheets, numerical analysis on the progressive collapse behavior of reinforced concrete beam column structures was implemented by using commercial finite element software MSC. Marc. The calculated results agree well with the test ones, and the simulation method is proved to be effective and practical. This paper illustrates that the progressive collapse resistance of the reinforced concrete structures can be enhanced by the GFRP sheet strengthening.