钢板夹心混凝土组合构件非弹性变形性能试验研究

An Enperimental Study on Nonelastic Deformation Behavior of Compound Concrete Elements Sandwiched with Steel Plates

本文通过9根简支、4根压弯钢板夹心砼组合受弯构件的试验,观测了试件的破坏形态和变形特征,分析了截面的纵向应变特点和对结构的影响;分析了M—φ曲线特性,提出了塑性曲率和塑性转角的计算公式。试验结果表明,钢板夹心砼结构具有较高的强度和良好的延性。

6 simply supported and 4 compressive bending concrete elements sandwiched with steel plates were tested and their rupture pattern and deformation characters were estimated. The longitudinal strain of the section and its influence on the structure were analysed.The characteristics curve M-φ were analysed and the formulas for calculation of plastic curvity and plastic deflection were suggested. Test results show that the concrete structure sandwiched with steel plates has high strength and good ductility.