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在了解国际上高强钢在输电塔工程研究领域发展状况的基础上,对Q460等边角钢进行极限承载力试验研究,为模拟角钢在实际结构中的受力,采用平面三角桁架结构模型,试件中的压杆长细比均为60。深入分析不同连接形式下的Q460角钢的破坏形态、极限承载力与连接腹杆的工作机理等。结果表明,长细比为60的子结构试验可真实反映构件在结构中的受力和实际端部约束状况。
Based on the understanding of the development of high strength steel in the field of transmission tower engineering in the world, the ultimate bearing capacity of Q460 isal angle steel is studied. In order to simulate the force of the angle steel in the actual structure, the plane triangular truss structure model, In the bar slenderness ratio of 60. In-depth analysis of the different forms of connection Q460 angle under the destruction of the shape, ultimate bearing capacity and the connecting rod of the working mechanism. The results show that the substructure test with a slenderness ratio of 60 can truly reflect the force in the structure and the actual end restraint.