抗震剪力墻結(jié)構(gòu)小跨高比連梁承載力計算分析
劉清山1，張偉2
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(1 河南大學(xué)土木建筑學(xué)院，開封 475004； 2 香港華藝設(shè)計顧問(深圳)有限公司，深圳 518031)［摘要］基于拉、壓桿模型理論，分析了小跨高比連梁內(nèi)部傳力機(jī)制，確定其受彎、受剪承載力。分別計算了三種抗剪機(jī)制承擔(dān)剪力的大小，由疊加法和杠桿法分別確定最終受剪、受彎承載力。計算結(jié)果與試驗結(jié)果對比分析表明，推導(dǎo)的小跨高比連梁承載力計算公式與試驗結(jié)果基本吻合，由計算剪彎比確定的小跨高比連梁破壞模式與實際破壞模式一致。［關(guān)鍵詞］小跨高比連梁；受彎；受剪；承載力；破壞模式Calculation and analysis on deep coupling beams bearing capacity of seismic shearwall structureLiu Qingshan1, Zhang Wei2(1 School of Civil Engineering and Architecture of Henan University, Kaifeng 475004, China；2 Hongkong Huayi Design & Consultant Co., Ltd., Shenzhen 518031, China)Abstract:The translation of inner force is analyzed with the strut-and-tie model, and the bearing capacity formula of shear and bend is deduced. The shear of each model is calculated separately and superimposed to establish the shear bearing formula. The formula of bend is established by lever principle. The comparison result shows that the test value agree with calculation value well, and the calculating failure pattern according to the bearing capacity ratio of shear and flexure is quite identical with the test result.Keywords:deep coupling beam; bend; shear; bearing capacity; failure patten河南省教育廳自然科學(xué)研究資助項目(2008A560001)。作者簡介：劉清山，博士，副教授，Email:greenhillliu@163.com。參考文獻(xiàn)［1］劉清山.抗震剪力墻小跨高比連梁的理論分析及試驗研究［D］.西安：西安建筑科技大學(xué),2006.［2］梁興文，劉清山，李萍.新配筋方案小跨高比連梁的試驗研究［J］.建筑結(jié)構(gòu)，2007，37(12):26-29.［3］李方圓，梁興文，張濤.新配筋方案小跨高比連梁受剪承載力計算［J］.建筑結(jié)構(gòu)，2009，39(8):48-49.［4］劉清山,梁興文.抗震剪力墻小跨高比連梁受剪承載力的軟化拉壓桿模型［J］.建筑科學(xué)，2008，24(7):5-9.［5］ZHAO Z Z, KWAN A K H，HE X G. Nonlinear finite element analysis of deep reinforced concrete coupling beams［J］. Engineering Structures, 2004, 26(1):13-25.［6］趙國藩.工程結(jié)構(gòu)可靠性理論與應(yīng)用［M］.大連：大連理工大學(xué)出版社,1996.［7］劉清山，梁興文.普通配筋小跨高比連梁的受剪承載力分析［J］.建筑結(jié)構(gòu)，2006,36(12):8-12.
