- 摘 要
-
(1 蘇州科技大學江蘇省結構工程重點實驗室， 蘇州 215011； 2 浙江交通職業(yè)技術學院橋隧工程研究所， 杭州 311112)
摘要: 為研究基于膠結￣簇釘混合連接的裝配式鋼￣混凝土組合結構的受力性能，開展了 8 組共 16 個試件的推出試驗，研究了膠結￣簇釘混合連接件的破壞機理、滑移性能、受力次序和抗剪承載力，探討了栓釘間距、直徑和高度對混合連接件抗剪性能的影響。 試驗結果表明:混合連接件破壞時試件整體性完好，呈現延性破壞；膠結層先于簇釘承擔剪力，膠結層的抗剪性能不可忽視；減小栓釘間距，可提高混合連接件的抗剪承載力，但不能改善其延性；在一定范圍內增加栓釘的直徑和高度，既可提高混合連接件的抗剪承載力又可改善其延性。 其中，栓釘直徑對混合連接件抗剪承載力和延性的影響最為顯著。
關鍵詞: 膠結￣簇釘混合連接件； 破壞機理； 滑移； 抗剪承載力； 受力次序； 栓釘
中圖分類號:TU398. 7 文獻標志碼:A 文章編號:1002￣848X(2022)06￣0049￣07
DOI:10. 19701 / j.jzjg.LS210227
Experimental study on failure mechanism and bearing capacity of hybrid connector withbonded￣clustered studs
YUAN Xiaojing1， ZHAO Wei2， LIU Fan1， ZHENG Xinyun1
(1 Key Laboratory of Structural Engineering of Jiangsu Province， Suzhou University of Science and Technology，Suzhou 215011， China； 2 Bridge and Tunnel Engineering Research Institute， Zhejiang Institute of Communications，Hangzhou 311112， China)
Abstract: In order to study the mechanical performance of the fabricated steel￣concrete composite structure based on hybridconnection with bonded￣clustered studs， the failure mechanism， slip performance， order of force and shear capacity ofhybrid connector with bonded￣clustered studs were studied through the push￣out test on 8 groups of 16 specimens. Theinfluence of stud spacing， diameter and height on the shear performance of hybrid connectors were discussed. The testresults show that the integrity of the hybrid connectors is intact when it fails， showing ductile failure； the bonded layer bearsthe shear force before the clustered studs， and the shear resistance of the bonded layer cannot be ignored； reducing the studspacing can improve the shear bearing capacity of hybrid connectors，but it cannot improve the ductility； increasing the studdiameter and height within a certain range can increase both the shear bearing capacity and the ductility of the hybridconnector. Among them， the stud diameter has the most significant impact on shear bearing capacity and ductility of thehybrid connector.
Keywords: hybrid connector with bonded￣clustered stud； failure mechanism； slip； shear bearing capacity； order offorce； stud
∗江蘇省建設系統(tǒng)科技項目(2020ZD08)。
第一作者:袁曉靜，碩士，實驗師，主要從事混凝土結構及組合結構性能研究，Email: xiaojing0318006@ 126.com。
[引用本文] 袁曉靜，趙偉，劉凡，等. 膠結￣簇釘混合連接件破壞機理及承載力試驗研究[ J]. 建筑結構，2022，52(6):49￣55. YUAN Xiaojing， ZHAO Wei， LIU Fan， et al. Experimental study on failure mechanism and bearing capacityof hybrid connector with bonded￣clustered studs[J]. Building Structure，2022，52(6):49￣55.
