【摘要】 通过对钢纤维砼单向拉仲与单向压缩应力-应变全曲线的试验,配筋钢纤维砼受弯构件荷载-变形试验及其全过程分析,本文提出了钢纤维砼的本构方程及其力学模式。并根据精确的计算结果,给出了便于设计的参数取值。理论计算与实验结果符合较好。更多还原

【Abstract】 The mechanical behavior of steel fibre reinforced concrete in tension,compression and bending is studied analytically and experimentally. Based on the stress-strain relationship and the assumptions proposed in this paper, the complete moment-curvature curves as well as the load-deflection curves of steel fibre and bar reinforced concrete beams in pure bending have been determined, which agree well with the test results. The equivalent stress block parameters obtained at various stages of loading show an interesting result that the position of line of the total tensile force at all loading stages seems to be independent of the fibre content, which may simplify computations in the design of steel fibre reinforced concrete members.更多还原