支座形式对单层球面网壳结构风振响应的影响  

The Effect of Support Form on the Wind-induced Vibration of Single-layer Spherical Reticulated Shell Structures

作　　者：龚玉[1] 陈波[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《兰州工业学院学报》2016年第2期1-5,共5页Journal of Lanzhou Institute of Technology

摘　　要：随着经济发展和技术的成熟,大跨度空间结构得到越来越广泛的应用,相应的研究也日趋成熟和完善.对于网壳结构,由于结构的大型化,复杂化,其风荷载敏感度较高,所以在设计时风荷载成为其主要荷载.用MATLAB模拟了风荷载,并在ANSYS中建立了K6-6的凯威特型单层球面网壳结构模型,通过时程分析,研究不同支座形式对单层球面网壳结构风振响应的影响,研究结果表明随着网壳结构支座约束能力的下降,其风振响应呈现增大趋势,因此在进行网壳结构设计时可以通过加强支座约束和提高支座刚度来提升结构抗风性能.At present, with the development of economy and technology, large span space structure is applied more and more widely, and the relevant research is becoming more mature and perfect. Due to the large scale and complex structure, the shell structure is sensitive to wind. So wind load is the main load in design. This paper used MATLAB to simulate wind load, and established the model of Kewitte latticed shell structure K6-6 in AN-SYS. By the time analysis, the influence of different support forms on the wind-induced vibration response to sin-gle-layer spherical reticulated shell was studied. The results show that with the decrease of the capacity of support constraint, the wind-induced vibration on shell structure will increase. So we can improve bearing stiffness and strengthen support constraints to improve the structure of wind resistance.

关 键 词：风荷载数值模拟 单层球面网壳 支座形式 风振响应 

分 类 号：TU457[建筑科学—岩土工程]