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(1 北京市建筑設計研究院有限公司, 北京 100045; 2 北京建筑大學“工程結構與新材料”高等學校工程研究中心, 北京 100044; 3 南京工業(yè)大學建筑抗震研究中心, 南京 211816)
[摘要]蒸壓輕質加氣混凝土(ALC)外墻板的連接節(jié)點有多種,勾頭螺栓法應用最為普遍,該連接做法為半剛性節(jié)點,限制了ALC外墻板在高層建筑外墻中的應用。提出了一種預埋件式減震搖擺節(jié)點,該連接節(jié)點解決了主體結構隨動變形的適應性難題及墻板的損傷問題,經理論分析、節(jié)點靜力試驗、平面推覆試驗、振動臺試驗,系統(tǒng)地驗證了該連接節(jié)點的安全性、可靠性、實用性,對蒸壓加氣混凝土外墻板應用于100m高層建筑外墻提供了可靠的柔性節(jié)點做法。該新型高效連接節(jié)點經過多個工程的實際應用,進一步驗證了其安全性、安裝便捷性、容差合理性、傳力明確性,促進了外墻系統(tǒng)裝配式技術的進步。
[關鍵詞]蒸壓輕質加氣混凝土(ALC); 預埋件式減震搖擺節(jié)點; 隨動變形
中圖分類號:TU399文獻標識碼:A文章編號:1002-848X(2019)18-0032-07
Research on performance of effective connection for autoclaved aerated concrete exterior wallboard system
Liu Hua1, Lu Qinggang1, Miao Qisong1, Zhang Guowei2, Du Dongsheng3, Shi Hongyu1
(1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 3 Research Center of Building Seismic Resistance, Nanjing Tech University, Nanjing 211816, China)
Abstract:Autoclaved aerated concrete (ALC) exterior wallboard has a variety of connection forms, and hook bolt is a common type of connection applied. This type of connection is a semi-rigid connection, which limits the use of ALC in exterior wallboard for high-rise structures. A kind of pre-embedded isolation vibration swing connection was proposed, which solved the adaptability problem of the follow-up deformation of the main structure and the damage problem of the wallboard. The safety, reliability and practicability of the connection were systematically verified by theoretical analysis, connection static test, plane Push-over test and shaking table test. A reliable flexible connection method was provided for the application of autoclaved aerated concrete exterior wallboard to the exterior walls of 100m high-rise buildings. The new type of high-efficiency connection has been applied in many projects, which further verifies its safety, convenience of installation, rationality of tolerance and clarity of force transmission, and promotes the progress of assembly technology of exterior wall system.
Keywords:autoclaved aerated concrete(ALC); pre-embedded isolation vibration swing connection; follow-up deformation
*國家十三五重點研發(fā)計劃項目子課題(2016YFC0701508)。
作者簡介:劉華,碩士,工程師,Email: liuhua@biad.com.cn。