- 摘 要
-
(1 上海建筑設(shè)計研究院有限公司， 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: 基于太原植物園大跨度膠合木網(wǎng)殼結(jié)構(gòu)工程案例，針對支座處用于連接膠合木桿件與基礎(chǔ)的銷軸￣鋼插板節(jié)點，進行了兩個單調(diào)加載及一個往復加載的抗彎試驗，得到了節(jié)點的荷載￣位移曲線及滯回曲線，給出了節(jié)點的轉(zhuǎn)動剛度及承載力，并給出了節(jié)點的典型破壞模式。 試驗結(jié)果表明:節(jié)點抗彎承載力相當于膠合木構(gòu)件抗彎承載力的 24. 4%，具有半剛性特征，在結(jié)構(gòu)設(shè)計中應(yīng)當予以考慮；同時，節(jié)點破壞模式表現(xiàn)為延性，滯回性能良好。 最后，通過試驗結(jié)果計算得到節(jié)點的轉(zhuǎn)動剛度，并與設(shè)計進行對比，驗證了設(shè)計的安全性。
關(guān)鍵詞: 太原植物園； 大跨膠合木網(wǎng)殼； 銷軸￣鋼插板支座節(jié)點； 轉(zhuǎn)動剛度； 破壞模式； 抗彎承載力
中圖分類號:TU366. 3 文獻標志碼:A 文章編號:1002￣848X(2022)04￣0006￣05
DOI:10. 19701 / j.jzjg.JG21033
Experimental study on the mechanical performance of the large￣span glued laminated timberreticulated shell pin￣steel plate bearing joint in Taiyuan Botanical Garden
JIA Shuizhong1，2， LI Ruixiong1，2， LI Yaming1，2
(1 Shanghai Institute of Architectural Design and Research， Shanghai 200041， China；2 Shanghai Engineering Research Center of Spatial Structure， Shanghai 200041， China)
Abstract: Based on the large￣span glued laminated timber reticulated shell structure engineering case of Taiyuan BotanicalGarden， two monotonic loading and one reciprocating loading bending tests were carried out for the pin￣steel plate jointsused to connect the glulam rods and the foundation at the support. The load￣displacement curves and hysteretic curves of thejoints were obtained. The rotational stiffness and bearing capacity of the joints were given， and the typical failure modes ofthe joints were also given. The experimental results show that the flexural capacity of the joint is equivalent to 24. 4% of theflexural capacity of the glulam member， and it has semi￣rigid characteristics， which should be considered in the structuraldesign. At the same time， the joint failure mode is ductile and has good hysteretic performance. Finally， the rotationalstiffness of the joint was obtained by calculation of the test results， and compared with the design， the safety of the designwas verified.
Keywords:Taiyuan Botanical Garden； large￣span glued laminated timber reticulated shell； pin￣steel plate bearing joint；rotational stiffness； failure mode； flexural capacity
∗華建集團課題(17￣1 類￣0104￣結(jié))。
第一作者:賈水鐘，碩士，教授級高級工程師，主要從事建筑結(jié)構(gòu)設(shè)計研究，Email: Jiasz@ isaarchitecture.com。
[引用本文] 賈水鐘，李瑞雄，李亞明. 太原植物園大跨膠合木網(wǎng)殼銷軸￣鋼插板支座節(jié)點受力性能試驗研究[ J].建筑 結(jié) 構(gòu)， 2022， 52 ( 4 ): 6￣10. JIA Shuizhong， LI Ruixiong， LI Yaming. Experimental study on the mechanicalperformance of the large￣span glued laminated timber reticulated shell pin￣steel plate bearing joint in Taiyuan BotanicalGarden[J]. Building Structure，2022，52(4):6￣10.
