Behavior of Reinforced Concrete Membrane Elements

小行星9700401 在低荷载下，没有裂缝的钢筋混凝土表现为弹性各向同性材料，其行为受两个材料常数的控制：杨氏模量E和泊松比v。然而，在使用荷载下，预计会出现适度的裂缝，并且可以接受。 这种开裂将钢筋混凝土转变为非线性、非各向同性材料。 开裂后膜元件的双轴性能由三个模量和两个泊松比的混凝土实验确定。 研究议程还包括开发有限元程序来预测剪力墙的行为。 该程序可用于验证所提出的五种力学性能的功能适用性。

9700401 Hsu At low load, reinforced concrete without cracks behaves as an elastic, isotropic material and its behavior is governed by two material constants: the Young's modulus E and the Poisson ration v. At service load, however, a moderate amount of cracking is expected and acceptable. Such cracking transforms reinforced concrete into a nonlinear, non-isotropic material. The biaxial behavior of post cracking membrane elements are governed by three moduli and two Poisson ratios of concrete to be determined experimentally. The research agenda also includes the development of a finite element program to predict the behavior of shear walls. This program can be used to verify the functional applicability of the five proposed mechanical properties.