马来西亚四季酒店大截面转换梁水平施工缝设置分析

Large Cross-section Transfer Beam Horizontal Construction Joint Setting Analysis of Four Seasons Hotel in Malaysia

以某工程大截面普通转换梁为背景,结合当地的英国标准BS 8110—1∶1997与国内规范分别对转换梁在承载力极限状态下正截面受弯的计算方式进行相应的比较,并给出具体的差异性;结合工程实例,在优选大截面转换梁水平施工缝位置的前提下,采用英标分析正截面受弯构件预留水平施工缝处最大水平剪应力值并给出需要附加的竖向插筋量,并给出一种施工缝处混凝土毛化处理的建议方案。

Taking the large-section transfer beam as the engineering background,this paper combined with the local British standard BS 8110—1：1997 and the national standard on the bending calculation method of transfer beam normal section under the bearing capacity limit state,and provided the specific differences.Combined with practical engineering,under the premise of optimal location of large crosssection transfer beam horizontal construction joint,it adopts the British standard to analyze the peak shear stress values of normal section flexural member reserved horizontal construction joints,provides the quantities of the required additional vertical steel dowel,and ultimately offer a concrete treatment proposal for the construction joints.