型钢混凝土受弯梁力学性能分析

型钢混凝土（SRC）结构由于其在大跨、重载结构中表现出来的良好受力性能以及在地震中表现出来的优良延性，已在工程实践中得到越来越广泛地应用。但是其计算理论多采用简单叠加或RC结构计算模式，这多少限制了其发展。为了了解SRC结构各组成材料受力性能及相互作用，本文对6根SRC梁进行了受弯载荷试验，并对其试验现象进行了分析，最后在此基础上依据混凝土、钢筋及型钢在不同位置处的实测应变变化情况，详细分析了SRC梁整个加载过程的力学性能。

Analysis on the Mechanical Behavior of the Flexural SRC Beams

SRC structure has been increasingly applied in practical engineering because its favorable mechanical behavior presenting in long span and over loading structures, and eminent ductility exhibiting in seism, but its calculation theory which adopted simple superposition or RC structure calculation mode generally confines its development. In this paper, the flexural loading experiments of six SRC beams to find out the mechanical behavior and mutual action of each constituent material are carried out, and then the experimental phenomenons are analyzed. Eventually on the basis of all the above analysis, the beams mechanical behavior during the whole loading process is analyzed in detail by practical strain changes of the strain gauges attached to different positions of concrete, reinforcement bars and steels.