基坑栈桥板混凝土搅拌车等效均布荷载取值研究及加固技术  

Research on Equivalent Uniform Load Value of Concrete Mixing Truck for Foundation Pit Trestle Plate and Reinforcement Technology

作　　者：贾红学 于长江 陶长青 廖宝辉 黄上海 裴鸿斌[1] 陈学光[1] JIA Hongxue;YU Changjiang;TAO Changqing;LIAO Baohui;HUANG Shanghai;PEI Hongbin;CHEN Xueguang(China Construction Eighth Engineering Division Co.,Ltd.,Shanghai 200122,China)

机构地区：[1]中国建筑第八工程局有限公司,上海200122

出　　处：《建筑施工》2023年第10期2138-2141,共4页Building Construction

摘　　要：针对基坑栈桥无法满足31 t混凝土搅拌车通行问题,对栈桥采取加固处理。综合考虑栈桥面板跨度、厚度、车辆质量、车辆在栈桥面板上的最不利位置等因素,根据绝对最大弯矩等值法计算栈桥板的等效均布荷载。采用暗梁+钢管柱方式对栈桥进行加固处理,对加固后栈桥进行承载力分析,保证栈桥满足混凝土搅拌车的行驶要求,现场实施效果良好。As to the problem that the foundation pit trestle cannot meet the traffic requirements of a 31 t concrete mixing truck,reinforcement measures are taken for the trestle.Taking into account factors such as the span,thickness,vehicle mass,and the most unfavorable position of vehicles on the bridge deck,the equivalent uniformly distributed load of the bridge deck is calculated using the absolute maximum bending moment equivalence method.The trestle is reinforced with concealed beams and steel pipe columns,and the bearing capacity of the reinforced trestle is analyzed to ensure that it meets the driving requirements of the concrete mixing truck.The on-site implementation effect is good.

关 键 词：基坑栈桥 混凝土搅拌车 等效均布荷载 加固 

分 类 号：TU312[建筑科学—结构工程]