【摘要】 装配式钢结构支护体系在基坑支护中被逐步推广。针对H型钢围檩的局部承压能力低的难题,使用早强水泥基砂浆填充承压节点区。试验研究表明,填充早强水泥基砂浆可以有效约束H型钢翼缘和腹板的屈曲及变形,增强H型钢承压节点的局部承载能力。更多还原

【Abstract】 Prefabriratud steel structure support system is gradually popularized in foundation pit support.The early strength cement-based mortar is used to fill the bearing joint area to solve the problem of low local bearing capacity of H-shaped steel purlin.The test results show that filling with early strength cement-based mortar can effectively restrain the buckling and deformation of H-beam flange and web,and enhance thr local bearing capacity of H-beam bearing joints.更多还原