论文部分内容阅读
混凝土的抗压强度高,但抗弯、抗拉能力很弱,宜作为受压构件;而钢材,特别是型钢为各向同性材料,其抗弯、抗拉能力强,具有良好的弹塑性,但在受压时容易失稳而丧失轴向抗压能力,因而宜作为受拉构件。而钢管混凝土在结构上能够将二者的优点结合在一起,可使混凝土处于侧向受压状态,其抗压强度可大幅度提高。同时由于混凝土的存在,为钢管结构提供支撑作用,从而提高了钢管的刚度,避免其丧失稳定性。本文基于钢管混凝土结构分析的基础上,探讨钢管混凝土结构的应用现状等内容。
Concrete compressive strength, but the bending, tensile strength is weak, should be used as compression member; and steel, especially steel is isotropic material, its bending, tensile strength, with good elasto-plasticity, However, it is easy to lose stability and lose axial compressive capacity under compression, so it should be used as a tension member. The structural characteristics of CFST can combine the advantages of the two together, so that the concrete is under lateral compression and its compressive strength can be greatly improved. At the same time, due to the existence of concrete, steel pipe structure to provide support, thereby increasing the rigidity of the steel pipe, to avoid its loss of stability. Based on the analysis of CFST structure, this paper discusses the application status of CFST structure and so on.