沿海地区轻型门式刚架耐久性研究  

Study on the durability of light-weight steel structures with gabled frame in coastal areas

作　　者：陈誉[1] 司春灿[1] 李博[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《郑州轻工业学院学报（自然科学版）》2009年第1期66-70,共5页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：福建省青年科技人才创新项目(2007F3065);华侨大学科研基金资助项目(07BS201);重庆交通大学(桥梁)结构工程重点实验室开放基金资助(CQSLBF-Z07-1);大连理工大学海岸和近海工程国家重点实验室基金资助项目(LP0705)

摘　　要：对沿海地区轻型门式刚架在大气腐蚀情况下的力学性能和抗剪性能进行了研究,得出如下结论:随腐蚀时间的增加,门式刚架钢材的屈服强度、抗拉强度、伸长率明显下降;材料的初始强度越高,屈服强度、抗拉强度和伸长率下降越明显;东南沿海环境对门式刚架钢材腐蚀时间在1.5 a内弹性模量影响不大,对彩钢屋面板螺栓连接强度影响很大,随腐蚀时间增加,螺栓连接强度明显下降.The mechanical properties and shear-resistance properties of light-weight steel with gabled frame subject to atmospheric corrosion in coastal areas were stadied. It comes to the conclusion that the longer light-weight steel with gabled frame is subject to corrosion, the more obviously its yield strength ,tensionresistance strength and extensibility decreases; the greater the initial strength of the steel, the more obviously its yield strength,tension-resistance strength and extensibility decreases. It also concludes that the environment of southeast coastal areas has little influence on the modulus of elasticity of the light-weight steel with gabled frame within 1.5 a, but has great influence on the joining strength of color steel roof panel bolts; as time passes, the joining strength of blots decreases obviously.

关 键 词：门式刚架 力学性能 抗剪性能 

分 类 号：TU31[建筑科学—结构工程]