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（青島騰遠(yuǎn)設(shè)計(jì)事務(wù)所有限公司， 青島 266100）

［摘要］萬達(dá)長(zhǎng)白山室內(nèi)水樂園為罕見的大跨坡屋頂管桁架結(jié)構(gòu)，由于坡屋面建筑造型易造成積雪，且屋面高低錯(cuò)落易造成堆雪，雪荷載遠(yuǎn)遠(yuǎn)大于常規(guī)輕鋼屋面，成為設(shè)計(jì)主要控制荷載。國內(nèi)荷載規(guī)范對(duì)此類屋面的雪荷載規(guī)定過于簡(jiǎn)單且偏于不安全，本工程按美國荷載規(guī)范進(jìn)行雪荷載取值。本工程桿件截面尺寸大，桿件交匯處節(jié)點(diǎn)復(fù)雜，對(duì)結(jié)構(gòu)的整體受力、雪荷載合理取值、整體屈曲、節(jié)點(diǎn)分析、施工階段模擬等進(jìn)行了詳細(xì)研究，保證了結(jié)構(gòu)的安全。

［關(guān)鍵詞］萬達(dá)長(zhǎng)白山室內(nèi)水樂園； 坡屋面； 管桁架； 雪荷載； 整體屈曲； 節(jié)點(diǎn)分析； 施工模擬

中圖分類號(hào)：TU393-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)18-0040-06

Design of large-span steel roof of Changbai Mountain International Resort′s Wanda Water Park

Sun Shaodong, Chen Jianwei, Huang Xin, Liu Yilin, Hu Haitao

(Qingdao Tengyuan Design Institute Co. Ltd., Qingdao 266100， China)

Abstract:Changbai Mountain International Resort′s Wanda Water Park is a rare large-span pipe truss structure with slope roof. The architectural shape of slope roof tends to cause snow-covered area and the up-and-down roof is easy to cause snowdrifts, so the snow load is far greater than that of conventional light steel roof and becomes main controlling design load. The regulations of domestic load codes for snow load of this kind of roof are too simple and tend to be unsafe. US load code was used to compute the value of snow load of this project. The sizes of members′ sections are large and the junctions of members are very complex. The overall mechanism of the structure, reasonable value of snow load, overall buckling, node analysis and construction stage simulation were researched in detail to ensure the safety of the structure.

Keywords:Changbai Mountain International Resort′s Wanda Water Park； slope roof； pipe truss； snow load； overall buckling； node analysis； construction simulation

作者簡(jiǎn)介：孫紹東，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：69610987@163.com。