- 摘 要
-
(中衡設(shè)計集團(tuán)股份有限公司， 蘇州 215021)
［摘要］金閶新城體育場館屋蓋為大跨度鋼結(jié)構(gòu)柱面網(wǎng)架，不同于一般鋼網(wǎng)架屋蓋，該網(wǎng)架支承于下部三個獨(dú)立的混凝土框架單體上，支座約束形式、下部結(jié)構(gòu)的平面布置及抗側(cè)剛度對結(jié)構(gòu)的受力狀態(tài)都有很大的影響?？紤]下部結(jié)構(gòu)的影響，對支座剛度進(jìn)行真實(shí)模擬，建立了包含下部結(jié)構(gòu)的總裝模型，并比較分析了各工況作用下屋蓋單體模型的不同受力狀態(tài)。結(jié)果表明，考慮真實(shí)的支座剛度可以有效減小結(jié)構(gòu)在溫度作用下的支座反力及結(jié)構(gòu)變形，同時地震響應(yīng)也有所放大。最后驗(yàn)算了結(jié)構(gòu)在大震作用下的支座位移，選擇了合適的支座形式。
［關(guān)鍵詞］金閶新城體育場館； 大跨度柱面網(wǎng)架； 總裝模型； 支座剛度； 溫度作用； 地震響應(yīng)
中圖分類號：TU318， TU393-3文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)20-0084-05
Structural design for large-span grid roof of Jin Chang New City Gymnasium
Shen Xiaoming, Zhao Baoli, Liu Jing, Wang Chenxu, Zhang Yonghao, Wang Tao
（ARTS Group Co., Ltd., Suzhou 215021, China）
Abstract:The roof of Jin Chang New City Gymnasium is a large-span steel cylindrical grid. Different from normal steel grid roof, this grid is supported above the three independent concrete frames. The restriction form of support, the lateral resistant stiffness and plan layout of the structure below have a big influence on the stress state of the grid. Considering the influence of the lower structure, the real simulation of bearing stiffness was conducted, and the overall assembly model was established containing lower structure. And the different stress states of the roof models under different working conditions were compared and analyzed. The results show that considering the real bearing stiffness can effectively reduce the support reaction force and deformation of the structure under the temperature action, and seismic response was amplified. Finally, the support displacement of the structure under the action of rare earthquake was checked, and the appropriate support form was selected.
Keywords:Jin Chang New City Gymnasium； large-span cylindrical grid; overall assembly model; stiffness of support; temperature action; seismic response
作者簡介：沈曉明，一級注冊結(jié)構(gòu)工程師，Email：shenxiaoming@artsgroup.cn。
- 下載地址
-
