884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

    盛  平  陸承康  程懋堏
    （北京市建筑設(shè)計(jì)研究院  100045）

[提要]  北京植物園展覽溫室為北京市重點(diǎn)工程，建筑造型奇特，外部全部采用鋼結(jié)構(gòu)，早流線(xiàn)型放射布置。各榀鋼桁架的跨度、高度、弧線(xiàn)曲率各不相同，節(jié)點(diǎn)連續(xù)相貫，鋼材為國(guó)產(chǎn)Q345C圓鋼管。屋面采用點(diǎn)式無(wú)框超白中空雙層玻璃。結(jié)合風(fēng)洞試驗(yàn)，對(duì)風(fēng)壓基本值重新計(jì)算取值。結(jié)構(gòu)分析使用了計(jì)算較精確的SAP84軟件。文中還介紹了鋼結(jié)構(gòu)節(jié)點(diǎn)形式以及玻璃劃分等內(nèi)容。
[關(guān)鍵詞]  展覽溫室  鋼結(jié)構(gòu)  風(fēng)洞試驗(yàn)  玻璃劃分

The Grccnhouse of Bcijing Botanical Gardcn is a major projcct in Bcijing. The bcautiful building is framcd with stccl structurc, the radiatcd trusscs arc laid out from the cUipsoid to the fanshapcd to show a strcamline shapc. The span, hcight and curvature among the trusscs arc diffcrcnt. The stccl pipe matcrial is Q345C. The insulation glass unit is uscd in the shcll. According to the tunncl tcst, we calculate the basic wind load. The SAP 84 software is uscd to analyse the structurc. The joints typcs and glass unit division arc dcscripcd also.
Keywords:  cxhibition grccnhousc; stccl structurc; tunncl tcst; glass unit division