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一、引言钢管混凝土以其抗压强度高,最适宜于作受压构件。在受弯构件中采用钢管混凝土,并无突出的优点。因此,钢管混凝土的抗弯强度及其计算方法,过去很少有人研究。但是,从极限平衡理论的角度来看,研究钢管混凝土的抗弯强度,却有助于求解钢管混凝土偏压柱的极限承载能力。为此,我们作了钢管混凝土的抗弯试验,着重探讨其极限强度的取值和实用的计算方法问题。二、试验概况共试验了两个试件。试件采用ф108×4mm的无缝钢管。试件长度为1.4m。钢材的屈
I. INTRODUCTION Steel-concrete concrete is most suitable for compressive components because of its high compressive strength. The use of concrete-filled steel tubes in bending members has no outstanding advantages. Therefore, the bending strength of concrete-filled steel tubes and their calculation methods have rarely been studied in the past. However, from the perspective of the limit equilibrium theory, the study of the bending strength of concrete-filled steel tubes can help to solve the ultimate bearing capacity of concrete-filled steel tube bias columns. To this end, we have made flexural tests of concrete-filled steel tubes, focusing on the ultimate strength and practical calculation methods. Second, the test profile A total of two test specimens were tested. Test pieces used ф108×4mm seamless steel tubes. The test piece length is 1.4m. Steel bending