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［摘要］進(jìn)行了兩組雙鋼板-混凝土組合剪力墻擬靜力抗震性能試驗(yàn)，研究了該類結(jié)構(gòu)的受力機(jī)理，并得到其典型破壞形態(tài)。試件均表現(xiàn)出良好的延性和耗能能力，滯回曲線飽滿穩(wěn)定，極限位移角均超過現(xiàn)行規(guī)范的規(guī)定限值，且大于其他類似試驗(yàn)的結(jié)果。綴板拉結(jié)措施可有效避免墻身鋼板的局部屈曲，同時(shí)可加強(qiáng)對(duì)內(nèi)填混凝土的約束作用，使高強(qiáng)混凝土在抗震剪力墻中的應(yīng)用成為可能，從而很好地滿足了超高層建筑結(jié)構(gòu)對(duì)剪力墻“高軸壓、高延性、薄墻體”的設(shè)計(jì)需求。在試驗(yàn)研究的基礎(chǔ)上，開展了理論分析和數(shù)值模擬，對(duì)雙鋼板-混凝土組合剪力墻在工程中的應(yīng)用提出了初步設(shè)計(jì)建議，對(duì)有待進(jìn)一步開展的研究工作進(jìn)行了展望。研究表明，雙鋼板-混凝土組合剪力墻具有延性好、耗能能力強(qiáng)、構(gòu)造簡(jiǎn)單、施工方便、避免裂縫外露等優(yōu)點(diǎn)，在超高層建筑結(jié)構(gòu)中具有廣闊的應(yīng)用前景。
［關(guān)鍵詞］雙鋼板-混凝土組合剪力墻；抗震性能；擬靜力試驗(yàn)；延性；超高層建筑；設(shè)計(jì)建議
中圖分類號(hào)：TU398+.2，TU317+.1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)12-0052-09
Research advances of composite shear walls withdouble steel plates and filled concrete
Nie Jianguo1, Tao Muxuan1, Fan Jiansheng1, Bu Fanmin1, Hu Hongsong1, Ma Xiaowei1，Li Shengyong2, Liu Fujun2(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2 RBS Architecture Engineer Design Associates, Guangzhou 510170, China)
Abstract:Quasi-static tests on seismic behavior of two groups of composite shear walls with double steel plates and filled concrete were conducted to investigate the structural mechanism and the typical failure modes. In the tests, all the specimens illustrated good ductility and energy dissipation ability with stable and full hysteretic curves. The ultimate drifts of all the specimens exceeded the limit value recommended by the current design code, and were also larger than the similar test results provided by other researchers. Batten plates tied the double steel plates can effectively prevent the steel plates from local buckling and enhanced the confining effect on the infill concrete. As a result, the high-strength concrete can be used in seismic shear wall structures and the design requirements of ‘high compression, high ductility and small thickness’ for shear walls in super high-rise buildings can be fully satisfied. Based on the experimental research, theoretical analysis and numerical simulation were conducted, and the preliminary design recommendations for the application of the composite shear wall with double steel plates and filled concrete were further presented. The research work to be further conducted was finally proposed. From this research, it can be concluded that since the composite shear wall with double steel plates and filled concrete has good ductility, superior energy dissipation ability, and simple details requiring convenient construction methods and avoiding the exposure of concrete cracks, it has wide application prospect in super high-rise buildings.
Keywords:composite shear wall with double steel plates and filled concrete; seismic behavior; quasi-static test; ductility; super high-rise building; design recommendation
*國家自然科學(xué)基金資助項(xiàng)目（51178246），清華大學(xué)自主科研計(jì)劃資助項(xiàng)目（20101081766）。
作者簡(jiǎn)介：聶建國，博士，教授，Email:niejg@mail.tsinghua.edu.cn。
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