超重及超跨长现浇框架梁底模预拱度的控制  

Control of bottom model pre-arch of extra-heavy and extra-long-span cast-in-situ frame beam

作　　者：王志强 

机构地区：[1]山西四建集团有限公司,山西太原030012

出　　处：《山西建筑》2014年第35期47-48,共2页Shanxi Architecture

摘　　要：简述了合理设置梁底模预拱度的重要性,结合具体实例,对影响预拱度设置的主要因素进行了研究,并通过对竖向挠度、荷载等的分析计算,指出设置合理的预拱度可提高梁底楼面标高的准确度,从而保证了超重、超跨长现浇梁结构的质量安全。The thesis introduces the importance of rationally setting bottom beam pre-arch. Combining with specific examples, it studies major factors influencing pre-arch setting, calculates vertical deflection and load, and finally points out that： rationally setting pre-arch can improve the accuracy of standard bottom beam height. Thus, it guarantees the quality safety of extra-heavy and extra-long-span cast-in-situ beam structure.

关 键 词：结构质量 预拱度 挠度 变形 

分 类 号：TU323.5[建筑科学—结构工程]