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(佛山市嶺南建筑設計咨詢有限公司, 佛山 528200)
[摘要]異形剪力墻穩(wěn)定驗算主要包括翼緣、腹板局部穩(wěn)定驗算和墻肢整體穩(wěn)定驗算。其中,翼緣、腹板局部穩(wěn)定問題是二維受壓構件的穩(wěn)定問題,而《高層建筑混凝土結構技術規(guī)程》 (JGJ 3—2010)提供的驗算方法的依據(jù)是一維壓桿穩(wěn)定驗算的歐拉公式,該方法理論依據(jù)不足。根據(jù)異形剪力墻翼緣、腹板的不同邊界條件及平板屈曲理論推導出異形剪力墻局部穩(wěn)定驗算公式,同時對異形剪力墻整體穩(wěn)定的規(guī)范驗算公式及驗算條件提出了改進意見。
[關鍵詞]平板屈服理論; 歐拉公式; 異形剪力墻; 局部穩(wěn)定; 整體穩(wěn)定
中圖分類號:TU398+.2文獻標識碼:A文章編號:1002-848X(2018)18-0071-03
Discussion and analysis on stability calculation method of T-shape, L-shape, trough-shape and I-shape shear walls with constant section
Deng Jianqiang, Wei Cheng
(Foshan Lingnan Architectural Design Consultiong Co., Ltd., Foshan 528200, China)
Abstract:The stability calculation of special\|shaped shear wall includes flange and web local stability and wall column overall stability calculations. Flange and web local stability problems are two-dimensional compression member stability problems, but a calculation as Euler formula which based on one-dimensional compression member is provided in Technical specification for concrete structures of tall building (JGJ 3—2010) for concrete structures in high-rise buildings. The method in the code is lack of theory basis. The local stability calculation formula was derived according to the different kinds of boundary conditions of flange or web of special-shaped shear wall and the plate buckling theory. In the meantime, the improvements were put forward for the overall stability calculation formula and calculation conditions for the special-shaped shear wall in the code.
Keywords:plate buckling theory; Euler formula; special-shaped shear walls; local stability; overall stability
作者簡介:鄧建強,碩士,教授級高級工程師,一級注冊結構工程師,Email: 915287548@qq.com。