现浇钢筋混凝土大跨梁结构方案分析  

Scheme analysis of cast in reinforced concrete long span beam structure

作　　者：雷立志 潘琰枫 Lei Lizhi;Pan Yanfeng(Wuhan Hongtai Construction Engineering Quality Inspection Co.,Ltd.,Wuhan 430070,China)

机构地区：[1]武汉弘泰建筑工程质量检测有限公司,湖北武汉430070

出　　处：《山西建筑》2021年第15期58-59,共2页Shanxi Architecture

摘　　要：为确定某大跨度钢筋混凝土框架结构方案,从整体性能以及大跨度梁设计两个方面进行了方案比较。最终认为大跨度梁线刚度调整对整体性能影响不大,结构方案的确定应以大跨度梁的设计为主。在满足承载能力极限状态以及正常使用极限状态的情况下,应尽量找到一个平衡点,使成本以及施工质量都能兼顾。大跨度梁恒载内力占比较大,拆模时混凝土性能接近设计指标,建议延长拆模时间。In order to determine the scheme of a long-span reinforced concrete frame structure,the scheme comparison is made from two aspects of overall performance and long-span beam design.It is concluded that the adjustment of linear stiffness of long-span beam has little effect on the overall performance,and the determination of structural scheme should be based on the design of long-span beam.In the case of meeting the limit state of bearing capacity and the limit state of normal use,we should try to find a balance point,so that both the cost and the construction quality can be taken into account.The results show that the dead load internal force of long-span beam accounts for a large proportion,and the concrete performance is close to the design index when the formwork is removed.It is suggested to extend the formwork removal time.

关 键 词：框架 结构方案 大跨度 

分 类 号：TU375.1[建筑科学—结构工程]