RESEARCH ON OBLIQUE MATH-BEAMS IN A NEW-TYPE FULL PRECAST CONCRETE FRAME STRUCTURE
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摘要: 在新型全预制装配框架体系中,斜企口梁是重要的受力构件。为了获得斜企口梁的极限承载力,应用剪切摩擦和拉压杆模型等理论,对刚性企口连接斜企口梁在复杂受力状态下的多种破坏形式给予分析,推导出相应的极限承载力公式,并通过已有的试验数据对承载力理论计算值进行验证。结果表明,该极限承载力公式具有较高精度。Abstract: The oblique match-beams are the vital supporting members in a new-type full precast concrete frame structure.In order to obtain the ultimate bearing capacity of oblique match-beams with rigid scarf joint,various failure modes were analyzed with shear-friction theory and strut-and-tie model method,and corresponding design formulas for the ultimate strength were deduced.At last,through the existing experimental data,theoretical calculations on the bearing capacity of the oblique match-beams were verified.The results show that the ultimate bearing capacity formula with high accuracy.
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ACI Committee 318.Building Code Requirements for StructuralConcrete(ACI 318-05)and Commentary (ACI 318R -05)[S]. [2] Prestressed Concrete Institute.Design Handbook PrecastPrestressed Concrete[M].Chicago:PCI, 2004. [3] 卢志红, 王全凤, 郭子雄.配箍筋缺口梁的抗剪承载力[J].华侨大学学报:自然科学版, 1994, 15(3):289-292. [4] 冯健, 吕志涛, 于长海.预应力及钢筋混凝土企口接头受剪性能试验研究[J].东南大学学报:自然科学版, 2000, 30(4):27-32. [5] JTJ 3002000港口及航道护岸工程设计与施工规范[S]. [6] 黄祥海, 梁书亭, 朱筱俊.预制装配式框架干式企口连接中缺口梁的受力性能分析[J].工业建筑, 2007, 37(10):46-49. [7] 丁大钧.现代混凝土结构学[M].北京:中国建筑工业出版社, 2000:286-292. [8] 刘朝山, 方从启.混凝土结构设计的拉-压杆模型方法II:设计[J].混凝土, 2009, 11(3):7-13. [9] 王田友, 苏小卒, 方江生.拉压杆模型方法在钢筋混凝土框架节点计算中的应用研究[J].土木工程学报, 2007, 40(11):36-40. [10] 尼儿逊A H.混凝土结构设计[M].过镇海, 方鄂华, 等译.北京:中国建筑工业出版社, 2003:131-131. [11] GB 500102002混凝土结构设计规范[S].
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