配箍率對型鋼混凝土柱-鋼梁節(jié)點受力性能影響的試驗研究*
司建超1，馮希源2，徐 斌1，吳 徽2
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（1 北京市建筑設(shè)計研究院, 北京 100045； 2北京建筑工程學(xué)院,北京市工程結(jié)構(gòu)與新材料工程研究中心， 北京 100044）[摘要]通過5個1/2縮尺試件在高軸壓比下的低周反復(fù)加載試驗，研究了型鋼混凝土柱-鋼梁框架中部節(jié)點的破壞形態(tài)和受力性能，討論了節(jié)點核心區(qū)配箍率低于規(guī)范要求配箍率的可行性，并對現(xiàn)行規(guī)范公式提出了修改建議。[關(guān)鍵詞]型鋼混凝土;節(jié)點;受力性能;軸壓比;配箍率中圖分類號：TU317 文獻(xiàn)標(biāo)識碼：A 文章編號:1002-848X(2013)S1-0483-05Research on mechanical property of steel reinforced concrete column-steel beam jointsSi Jianchao1, Feng Xiyuan2, Xu Bin1, Wu Hui2(1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 Beijing University of Civil Engineering and Architecture, Beijing 100044, China)Abstract: With 5 one-second scale joint specimens tested under monotonic and cyclic loadings with high axial compression ratio, failure characteristics and mechanical properties of Steel Reinforced Concrete Column-Steel Beam Joint (SRC) are studied. The SRC joint has better ductility and load capacity; the cracking load and ultimate bearing capacity are improved, the energy dissipation raises, and the brittle fracture is avoided.Keywords: steel concrete; joint; mechanical property; axial compression ratio; stirrup ratio
