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

(1 清華大學(xué)  北京 100084；2 華源德根結(jié)構(gòu)工程設(shè)計(jì)事務(wù)所  北京 100011)
【提要】  2008年北京奧運(yùn)會(huì)射擊館的部分室內(nèi)跨度達(dá)到237m，經(jīng)過(guò)結(jié)構(gòu)比選，采用了大跨度現(xiàn)澆預(yù)應(yīng)力空心板技術(shù)。結(jié)合該工程的特點(diǎn)，介紹了單向預(yù)應(yīng)力空心板的設(shè)計(jì)、計(jì)算方法、步驟和構(gòu)造措施。
【關(guān)鍵詞】  預(yù)應(yīng)力  單向  空心板  異型截面  設(shè)計(jì)
Application of Castinsitu Prestressed Concrete Hollow Slab Structure in Olympic Shooting Gymnasium/Xu Yan1, Shen Minxia1, Qi Shijian2(1 Tsinghua University，Beijing 100084,China；2 Huayuan Degen Engineers, Beijing 100011, China)
Abstract:Some spans of floor in Beijing Olympic Shooting Gymnasium reach to 23^7m.According to the comparison among different slab types,prestressed concrete hollow slabs are selected.Based on the engineering,the design,calculation method and construction measures of one\|way prestressed hollow slabs are introduced.
Keywords:prestress; one\|way; hollow slab; abnormal section; design