型钢轻骨料混凝土梁正截面受弯承载力试验与计算  

Experiment and calculation of bending strength of steel reinforced lightweight aggregate concrete beams

作　　者：刘凡[1] 翁晓红[1] 邵永健[1,2] 赵鸿铁[2] 殷志文[1] 

机构地区：[1]江苏省结构工程重点实验室(苏州科技学院),苏州215011 [2]西安建筑科技大学土木工程学院,西安710055

出　　处：《建筑结构》2009年第6期15-18,共4页Building Structure

基　　金：建设部科技研究项目(01-2-20)

摘　　要：为研究型钢轻骨料混凝土梁的正截面受弯承载力,进行了8根型钢轻骨料混凝土梁和2根型钢普通混凝土梁的受弯性能试验。根据对型钢普通混凝土梁正截面受弯承载力的分析结果,提出了型钢轻骨料混凝土梁正截面受弯承载力计算的修正型钢规程法和叠加法。8根型钢轻骨料混凝土试验梁的受弯承载力实测值与修正型钢规程法计算值之比的平均值为1.042,变异系数为0.039;与叠加法计算值之比的平均值为1.039,变异系数为0.039,证明采用修正型钢规程法和叠加法来计算型钢轻骨料混凝土梁的正截面受弯承载力是可行的。In order to study bending strength of steel reinforced lightweight aggregate concrete（SRLC） beams, eight SRLC beams and two steel reinforced normal density concrete beams were tested. ＂ Up-dated directive rules of SRC structures＂ and ＂superposition method＂ of the calculation for the normal section bending strength of SRLC beams are presented on the basis of the comparison and analysis of calculation theory of the normal section bending strength of steel reinforced normal density concrete beams. The average of the ratios of the measured values to the calculation values according to ＂up-dated directive rules of SRC structures＂ is 1. 042, and the mutant factor is 0. 039. The average of the ratios of the measured values to the calculation values according to the superposition method is 1.039, and the mutant factor is 0.039. As a result, it is feasible to adopt ＂up-dated directive rules of SRC structures＂ and superposition method to calculate the normal section bending strength of SRLC beams.

关 键 词：型钢轻骨料混凝土 梁 受弯承载力 计算方法 

分 类 号：TU375.1[建筑科学—结构工程] TU473.1