摘要
为研究拉索参数对预应力巨型支撑-钢框架结构的弹塑性性能的影响,通过改变拉索直径及预拉力,采用Pushover分析法进行静力推覆对比分析。结果表明:拉索预拉力上下浮动20%,对结构极限承载力和抗侧刚度产生的影响很小。拉索直径上下浮动20%,对结构极限承载力和抗侧刚度产生了可观的变化,结构抗侧刚度变化量与之呈正比关系。
In order to study the elasto-plastic behaviors of Pre-stressed Mega Bracing-steel Frame Structure under different cable parameters, comparative analysis under different cable diameters and pretention is made in this article by Pushover analysis. Results shows that fluctuations in cable pretention by 20% have little impact on the ultimate bearing capacity and lateral stiffness, but fluctuations in cable diameters by 20% do have much influence on them, and that lateral stiffness change value of the structure is proportional to cable diameters change value.
出处
《建筑技术》
北大核心
2015年第7期612-616,共5页
Architecture Technology
基金
江苏省结构工程重点实验室资助项目(ZD1302)
作者简介
许为强（1979-），男，江苏阜宁人，硕士，e—mail：814455797@qq．com．
