摘要
讨论了现浇框架结构中框架梁负弯矩钢筋布置在梁翼板内的影响因素。分析认为当满足板厚h≥110mm,梁第二排负筋直径D≤25mm,且正常使用阶段楼板支座处裂缝为非贯通裂缝、宽度不超过规范限值的条件时,将框架梁第二排负弯矩筋布置在翼板内是可行的。框架梁负弯矩筋优化布置方式可以保证节点核心区混凝土浇注的密实程度,对于提高框架结构整体施工质量也有重要的作用。
The factors influencing frame beam negative moment steel arranged in web are discussed in frame structure. It is feasible that frame beam negative moment steel to be arranged in web if these conditions as followed are fulfilled： the RC floor thickness h≥ 110mm, the second row steel bar diameter D≤25mm, the floor crack is not run - through, and the crack width is less than limitation of the code. The optimized arrange manner of beam negative moment steel can insure the concrete density degree, and benefit the whole construction quality of frame structure.
出处
《低温建筑技术》
2008年第4期74-76,共3页
Low Temperature Architecture Technology
关键词
框架梁
负弯矩筋
优化布置
平法表示
frame beam
negative moment steel
optimized arrange
plan notation
