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(1 杭州市房屋安全鑒定事務(wù)管理中心, 杭州 310003; 2 綠城東方建筑設(shè)計有限公司, 杭州 310012)
[摘要]主要研究目前低層民居中正被推廣使用的輕鋼密立柱墻體的蒙皮效應(yīng)。通常認為輕鋼密立柱鋼架是一個非穩(wěn)定的體系,然而,當立柱表面與墻面板(石膏板及OSB定向刨花板)可靠連接時,墻體形成了一個穩(wěn)定封閉的結(jié)構(gòu)體系,板可以與輕鋼鋼架協(xié)同工作,并提高結(jié)構(gòu)的整體強度及剛度??紤]墻面板的應(yīng)力蒙皮效應(yīng)可使結(jié)構(gòu)設(shè)計更加符合真實的受力狀態(tài),而且也能提高經(jīng)濟效益。因此考慮應(yīng)力蒙皮效應(yīng)具有重要的理論價值和現(xiàn)實意義。在參照相關(guān)試驗結(jié)果的基礎(chǔ)上,運用有限元程序ANSYS對應(yīng)力蒙皮效應(yīng)采用了數(shù)值模擬,并深入分析了蒙皮效應(yīng)的破壞形態(tài)及其工作機理。
[關(guān)鍵詞]輕鋼密立柱墻體; 有限元模擬;應(yīng)力蒙皮效應(yīng);影響因素
中圖分類號: TU392.5 文獻標識碼: A文章編號: 1002-848X(2016)S1-0591-06
Numerical simulation of the stressed skin diaphragm in light-guage steel stud walls
Chen Wei 1, Lou Jie2, Zhang Jiejing1
(1 Hangzhou City Housing Safety Identification Management Center, Hangzhou 310003, China;
2 Greentown Oriental Architects Co., Ltd., Hangzhou 310012, China)
Abstract: It is mainly about the stressed skin diaphragm in light-guage steel stud walls of the low-dwelling-house, which is widely used. In the structure design, light-guage steel frame is an unstable system. While, the sheets (gypsum board and oriented strand board) can work together with the structures if proper connections are made between the sheets and surrounding members, which will increase the strength and stiffness of the whole structure. Considering the influence of stressed skin diaphragm can help the model more accord with the condition of practical structure, which also produces considerable economic advantage. So it is significant and practical to develop the effect of stressed skin diaphragm in light-guage steel stud walls. Adopting numerical model to simulate the stressed skin diaphragm with ANSYS, which is a finite element software, based on the results of exist experiments.
Keywords: light-guage steel stud wall; numerical simulation; stressed skin diaphragm; influence factor
作者簡介: 陳偉,碩士,工程師,Email:46593199@qq.com。