帶桁架鋼筋的混凝土雙向自支承疊合板受力機(jī)理研究*
陳東，沈小璞
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（安徽建筑大學(xué)土木工程學(xué)院， 合肥 230601）
［摘要］采用試驗驗證和數(shù)值模擬技術(shù)，對帶桁架鋼筋的足尺拼接雙向自支承疊合板的破壞機(jī)理以及桁架鋼筋與疊合板的共同工作機(jī)理進(jìn)行研究；對帶桁架鋼筋、不帶桁架鋼筋兩種情況下的雙向自支承疊合板進(jìn)行了全過程受力對比研究。結(jié)果表明，桁架鋼筋與疊合板共同工作，降低了疊合板拼縫處的受力，使整個疊合板的內(nèi)力分布更加均勻，明顯改善了疊合板的受力性能。［關(guān)鍵詞］桁架鋼筋; 雙向自支承疊合板; 共同工作中圖分類號：TU375.2 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)15-0093-04
Study on loading mechanism of bidirectional self-supporting concrete composite plates with truss rebarChen Dong, Shen Xiaopu(School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, China)Abstract:Based on experiment and numerical simulation technology, the loading mechanism of bidirectional self-supporting full-scale spliced concrete composite plates with truss rebar was studied as well as the collaboration mechanism of composite plate and truss rebar. The comparison of the whole mechanism process was studied for bidirectional self-supporting composite plates with and without truss rebar. Results show that the collaboration of composite plate and truss rebar reduces the stress of the composite plate seam joint, makes the internal force distribution of the composite plate more uniform, and significantly improves the mechanical performance of the plate.Keywords:truss rebar; bidirectional self-supporting composite plate; collaboration
*國家重點基礎(chǔ)研究發(fā)展計劃“973計劃”（2012CB719703），安徽省自然科學(xué)基金項目（1408085QE96，090414272x）。作者簡介：陳東，博士，副教授，Email：dongqian0823@sina.com。
