摘要
介绍了一种新型空间钢网格屋盖,该结构的上、下层为H型钢,中间由方形钢管剪力键连接。以某实际工程为例,采用正交斜放空间钢网格结构,在爆炸冲击波作用下,验算了屋盖的竖向峰值位移。通过参数化分析方法,对屋盖进行了模态分析和动力时程分析,将各参数变化对自振频率和竖向振动的影响进行了分析。结果表明,屋盖的自振特性类似于实心平板,具有良好的抗爆性能,经济性指标优于传统结构。
A new type of spatial grid roof was introduced in the paper. The spatial steel grid was made up of the top and lower layer H-shaped steel ribs which were connected by square steel tube shear keys. A project was taken as an example,orthogonal-diagonal lattice H-shaped steel spatial grid roof was used to verify the peak vertical displacement of the roof under the blast wave. Through the parametric analysis,the modal analysis and dynamic time-history analysis were carried out,the influence of the parameters on the natural frequency and the vertical vibration was analyzed. The results showed that the natural vibration of the roof was similar to solid panel,the structure had a good blast-resistant performance,its economic index was superior to traditional structure.
作者
尚洪坤
马克俭
代志旭
刘景涛
张红卫
SHANG Hongkun;MA Kejian;DAI Zhixu;LIU Jingtao;ZHANG Hongwei(Spaee Struetures Researeh Center（SSRC） of Guizhou University, Guiyang 550003, China;CNPC East China Steel Design Institute Co. Ltd, Qingdao 266031, China)
出处
《工业建筑》
CSCD
北大核心
2018年第4期130-136,共7页
Industrial Construction
基金
贵州省协同创新中心建设项目(黔教合协同创新字[2013709])
贵州省科技合作计划项目(黔科合LH字[2013]7468号)
