早强水泥基砂浆增强H型钢节点承压能力试验研究  

Experimental Study on the Pressure-bearing Capacity of H-shaped steel Nodes Enhanced by Early-strength Cement-based Mortar

作　　者：任建军 蒋育红[1] 王鸿宇 李雪峰 王若贤 贾冬云[1] Ren Jianjun;Jiang Yuhong;Wang Hongyu;Li Xuefeng;Wang Ruoxian;Jia Dongyun(Anhui University of Technology,Ma'anshan Anhui,243002,China;RuiMa-Maruken(Anhui)Construction Protecting Technology Co.,Ltd,Ma'anshan Anhui,243000,China;Xi'an Technological University,Xi'an Shanxi,710000,China)

机构地区：[1]安徽工业大学,安徽马鞍山243002 [2]瑞马丸建(安徽)工程支护科技有限公司,安徽马鞍山243000 [3]西安工业大学,陕西西安710000

出　　处：《安徽冶金科技职业学院学报》2024年第1期1-2,11,共3页Journal of Anhui Vocational College of Metallurgy and Technology

基　　金：早强柔性超疏水高性能混凝土的开发资助项目(课题编号:RH2100003197);基于新型标准化装配式支撑体系的深基坑智能监测系统及动态设计软件研发(课题编号:2022-YF090);装配式钢结构的标准化节点和构件研发及其在深基坑支护体系动态调整设计中的应用(课题编号:2023-YF063)。

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。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.

关 键 词：钢结构基坑支护体系 H型钢围檩 节点局部承载力 早强水泥基砂浆填充料 

分 类 号：TU578.1[建筑科学—建筑技术科学] TU753