寧夏國際會(huì)展中心結(jié)構(gòu)設(shè)計(jì)
楊旭晨，唐偉，馮自強(qiáng)
- 摘 要
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楊旭晨，唐偉，馮自強(qiáng)（中聯(lián)筑境建筑設(shè)計(jì)有限公司， 杭州 310014）［摘要］寧夏國際會(huì)展中心為復(fù)雜鋼混凝土混合結(jié)構(gòu)，平面及豎向剛度差別較大，有必要進(jìn)行整體計(jì)算分析。結(jié)構(gòu)混凝土長度為248m，屬超長混凝土結(jié)構(gòu)。采用PMSAP及MIDAS/Gen軟件進(jìn)行計(jì)算分析，得到混凝土結(jié)構(gòu)由于溫差而產(chǎn)生的變形和內(nèi)力分布規(guī)律，由此在設(shè)計(jì)中合理選擇結(jié)構(gòu)構(gòu)件的剛度、采取相應(yīng)的構(gòu)造和施工措施、控制后澆帶封閉的時(shí)間、釋放屋蓋支座由溫差產(chǎn)生的水平力，達(dá)到了設(shè)計(jì)預(yù)期效果。對(duì)屋面鋼桁架結(jié)構(gòu)分別進(jìn)行整體模型和單獨(dú)鋼結(jié)構(gòu)模型計(jì)算，對(duì)比地震作用效應(yīng)計(jì)算的差別。［關(guān)鍵詞］寧夏國際會(huì)展中心； 鋼-混凝土混合結(jié)構(gòu)； 整體分析； 超長混凝土結(jié)構(gòu)； 空間鋼桁架； 大跨度結(jié)構(gòu)； 支座構(gòu)造中圖分類號(hào)：TU398+.7，TU393.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)18-0014-06Structural design of Ningxia International Convention and Exhibition CenterYang Xuchen, Tang Wei, Feng Ziqiang(China United Zhujing Architecture Design Co., Ltd., Hangzhou 310014, China)Abstract: Ningxia International Convention and Exhibition Center is a complex steel-concrete composite structure. It was necessary to make the global calculation and analysis for the large differences between planar and vertical stiffness. The structure, which is 248m in length, is a super-long concrete structure. PMSAP and MIDAS/Gen software were consulted to figure out the regularities of internal force distribution and the deformation caused by the temperature. Some measures were taken to achieve the rational designing effects, such as selecting the reasonable stiffness of structural components，adopting the corresponding structural and constructional measures, controlling the sealing time of post-poured strips, releasing the horizontal force of roof supports caused by temperature difference. Furthermore, the steel roof truss structure was calculated as a part of whole and as a separate structure respectively to compare the distinction of seismic affection.Keywords: Ningxia International Convention and Exhibition Center；steel-concrete composite structure; global analysis; super-long concrete structure; space steel truss; large span structure; bearing detail作者簡(jiǎn)介：楊旭晨，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：Xuchen_yang@acctn.com。參考文獻(xiàn)［1］董一萌. 管桁架的平面外穩(wěn)定問題的研究［J］.結(jié)構(gòu)工程師，2006,22（4）：18-23.［2］羅堯治，曹立嶺，沈雁彬，等. 大跨交叉網(wǎng)架拱結(jié)構(gòu)的穩(wěn)定性分析［J］.建筑結(jié)構(gòu)，2001，31（2）:30-31.［3］嚴(yán)慧，董石麟. 板式橡膠支座節(jié)點(diǎn)的設(shè)計(jì)與應(yīng)用研究［J］.空間結(jié)構(gòu),1995,1（2）:33-40.
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