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趙東1，徐景戎1，曹寶珠2

（1 吉林土木風(fēng)建筑工程設(shè)計(jì)有限公司， 長(zhǎng)春 130061； 2 吉林建筑大學(xué)土木工程系， 長(zhǎng)春 130118）

 

［摘要］通化城市展覽館的主體鋼結(jié)構(gòu)部分呈碗形，整體結(jié)構(gòu)呈現(xiàn)出比較強(qiáng)的空間受力特征。在分析整體結(jié)構(gòu)受力特征的基礎(chǔ)上討論了如下幾個(gè)問題：環(huán)梁的拉彎穩(wěn)定計(jì)算，按規(guī)范中純彎曲構(gòu)件穩(wěn)定公式計(jì)算大偏心受拉構(gòu)件的穩(wěn)定問題，結(jié)果偏于保守；分析鉸接柱腳內(nèi)力特征，對(duì)比了銷軸節(jié)點(diǎn)的適用條件，采用了分別承受水平力和豎向力的柱腳形式，該節(jié)點(diǎn)構(gòu)造簡(jiǎn)單、傳力可靠；由于放射形鋼梁周邊不均勻布置造成的應(yīng)力集中，采用有限元方法對(duì)屋面復(fù)雜放射梁交匯節(jié)點(diǎn)進(jìn)行應(yīng)力分析，并給出應(yīng)力規(guī)律圖。

［關(guān)鍵詞］整體受力特征； 拉彎穩(wěn)定； 柱腳設(shè)計(jì)； 屋面梁交匯節(jié)點(diǎn)

中圖分類號(hào)：TU392.1   文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：1002-848X(2013)16-0078-04

 

Zhao Dong1, Xu Jingrong1, Cao Baozhu2

（1 Jilin Tumufeng Civil Engineering Design Co., Ltd., Changchun 130061, China; 2 Department of Civil Engineering, Jilin Jianzhu University, Changchun 130118, China）

 

Abstract: Main steel structure of the exhibition hall in Tonghua city is bowl-shaped, which presents strong spatial mechanics characteristics. Based on the analysis of the mechanics characteristics of the whole structure, following problems were discussed. Using the stability formula of members subjected to pure bending of the codes to calculate the members under large eccentricity tension loading, calculations of the stability of ring beam subjected to axial tension and bending were probably conservative. Internal force of articulated column bases was analyzed. The application conditions of pin connection were compared. Different column bases forms to bear horizontal and vertical loading were applied, which had simple construction and reliable load-transferring way. Due to unevenly arrangement around radial beam, stress was concentrated. Using finite element methods, stress of intersection joints of roof complex radial beams was analyzed and the stress figure was provided.

Keywords: overall mechanics characteristics; tension-bending stability; column base design; intersection joint of roof beam

作者簡(jiǎn)介：趙東，學(xué)士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Emil:m18643126156@163.com。

 

［1］GB 50009—2001 建筑結(jié)構(gòu)荷載規(guī)范［S］. 2006年版.北京：中國(guó)建筑工業(yè)出版社，2006.

［2］GB 50017—2003 鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］.北京：中國(guó)計(jì)劃出版社，2003.

［3］袁靜，童根樹.拉彎構(gòu)件的彎扭失穩(wěn)計(jì)算［J］.鋼結(jié)構(gòu)，2004，19（6）：47-49，53.