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 上海建筑設(shè)計(jì)研究院有限公司， 上海 200041； 2 上海建筑空間結(jié)構(gòu)工程技術(shù)研究中心， 上海 200041)

摘要: 以太原植物園為工程背景，結(jié)構(gòu)采用了膠合木網(wǎng)殼￣拉索新型結(jié)構(gòu)體系，網(wǎng)殼采用雙向疊放木梁，沿主向間隔兩跨在上部木梁對(duì)應(yīng)位置增設(shè)一根加強(qiáng)木梁，形成雙向三層疊放木梁新型節(jié)點(diǎn)。 該新型節(jié)點(diǎn)采用鋼銷和高強(qiáng)螺釘進(jìn)行連接，受力復(fù)雜，需要進(jìn)行足尺節(jié)點(diǎn)試驗(yàn)。 根據(jù)受力特點(diǎn)分別設(shè)計(jì)了沿主向木梁加載和沿次向木梁加載試驗(yàn)方案，分別對(duì)節(jié)點(diǎn)進(jìn)行了主、次向加載試驗(yàn)，得到節(jié)點(diǎn)抗剪承載力和位移關(guān)系曲線，結(jié)合主、次向加載節(jié)點(diǎn)破壞現(xiàn)象分析了節(jié)點(diǎn)受力特征。 結(jié)果表明沿主、次向加載節(jié)點(diǎn)延性較好，具有較大的延性變形能力。 進(jìn)一步利用有限元軟件 MIDAS 和試驗(yàn)結(jié)果數(shù)據(jù)計(jì)算得到節(jié)點(diǎn)的剪切剛度。

關(guān)鍵詞: 太原植物園； 大跨膠合木網(wǎng)殼； 木梁疊放連接節(jié)點(diǎn)； 抗剪承載力； 破壞特征； 剪切剛度

中圖分類號(hào):TU393. 3 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002￣848X(2022)04￣0011￣06

DOI:10. 19701 / j.jzjg.JG21032

Research on the stiffness value method of the stacked connection joints of large￣span glued laminated

timber reticulated shell wood beams in Taiyuan Botanical Garden

LI Ruixiong1，2

(1 Shanghai Institute of Architectural Design and Research， Shanghai 200041， China；2 Shanghai Engineering Research Center of Spatial Structure， Shanghai 200041， China)

Abstract: Taking the Taiyuan Botanical Garden as the engineering background， the structure adopts a new structuralsystem of glued laminated timber reticulated shell￣cable. The reticulated shell adopts two￣way stacked wood beams， and areinforced wood beam is added at the corresponding position of the upper wood beam at two spans along the main directionto form a new type of two￣way three￣layer stacked wood beam joint. The new type of joint is connected by steel pins andhigh￣strength screws， and the force is complex， so a full￣scale joint test is required. According to the force characteristics，the loading test schemes of the wood beam along the primary direction and the wood beam along the secondary directionwere designed respectively. The primary and secondary loading tests were carried out on the joints respectively， and theshear bearing capacity and displacement curve of the joints were obtained. Combined with the failure phenomenon of thejoint along the primary and secondary loading joints， the force characteristics of the joints were analyzed. The results showthat the ductility of the joint along the primary and secondary loading joints is better， and has great ductility deformationability. Furthermore， the shear stiffness of the joint was calculated by using the finite element software MIDAS and the testdata.

Keywords:Taiyuan Botanical Garden； large￣span glued laminated timber reticulated shell； wood beam stacking connectionjoint； shear capacity； failure characteristics； shear stiffness

∗華建集團(tuán)課題(17￣1 類￣0104￣結(jié))。

第一作者:李瑞雄，博士，高級(jí)工程師，主要從事建筑結(jié)構(gòu)設(shè)計(jì)研究，Email: lirx@ isaarchitecture.com。

[引用本文] 李瑞雄. 太原植物園大跨膠合木網(wǎng)殼木梁疊放連接節(jié)點(diǎn)剛度取值方法研究[J]. 建筑結(jié)構(gòu)，2022，52(4):11￣16，30. LI Ruixiong. Research on the stiffness value method of the stacked connection joints of large￣span glued laminatedtimber reticulated shell wood beams in Taiyuan Botanical Garden[J]. Building Structure，2022，52(4):11￣16，30.