论文部分内容阅读
对不同尺寸的普通及冷弯型钢柱进行了受压及受扭试验。每组试件的材料属性均通过单回路获得。每组试件均通过压力机制动或冷轧制作。研究了柱的屈曲和极限承载力,考虑了压痕过程中冷作引起的波纹柱的强度变化。对比普通及波纹冷弯型钢柱的受压试验,并详细描述了试验方案和试验过程。在压痕过程中通过材料冷作形成的波纹钢柱,屈曲承载力和极限承载力得到提高。结果表明,波纹钢柱的屈曲和极限承载力比普通钢柱的分别提高33%和26%。
For different sizes of ordinary and cold-formed steel columns were subjected to compression and torsion test. The material properties of each group of specimens were obtained by a single loop. Each set of test pieces are made by press brake or cold rolling. The buckling and ultimate bearing capacity of the column were studied, and the change of the strength of the corrugated column due to the cold working during indentation was considered. Contrast the normal and corrugated cold-formed steel columns compression test, and a detailed description of the test program and test process. Corrugated steel columns formed by cold working of material during the indentation increase the buckling and ultimate bearing capacity. The results show that the buckling and ultimate bearing capacity of corrugated steel columns are increased by 33% and 26% respectively compared with ordinary steel columns.