外包钢加固石梁试验研究和理论分析  

Experimental research and theoretical analysis on stone beams strengthened by external encased steel plate

作　　者：李梁峰[1,2] 

机构地区：[1]福建省建筑科学研究院,福州350025 [2]福建省绿色建筑技术重点实验室,福州350025

出　　处：《建筑结构》2017年第21期100-104,共5页Building Structure

基　　金：福建省住房和城乡建设厅科学技术项目(2016-K-50)

摘　　要：对采用外包钢加固的石梁进行了正截面受弯承载力试验,分析了其受弯性能及其破坏特点。试验结果表明:外包钢加固法能提高石梁的抗弯承载力,改善其受弯性能;角钢锚固是石梁加固过程中的关键因素,对加固梁的承载力和延性性能有很大的影响。对加固梁的受弯承载力进行了理论分析,并提出了实用计算公式。Flexural capacity experiment of normal section on the stone beams strengthened by external encased steel plate was conducted,to analyze the flexural behaviors and failure characteristics. The analysis results show that the stone beam strengthened by external encased steel plate can improve the flexural bearing capacity of stone,and has good flexural ductility. The anchoring of angle steel is a critical factor in strengthening process and it has a great influence on the bearing capacity and ductility of the strengthened beam. The theoretical analysis of the flexural capacity of the strengthened stone beams was conducted,and the practical calculation formula was puts forward.

关 键 词：石结构 石梁 外包钢 加固 弯曲试验 

分 类 号：TU363[建筑科学—结构工程]