摘要
框架或框-剪结构柱、墙混凝土设计强度高于梁、板混凝土设计强度二个等级及以上的情况较为普遍,其核心区混凝土浇筑质量控制的好坏,直接影响结构整体承载力以及抗震性能。文章重点提出柱、墙和梁、板核心区隔离措施做法,介绍不同强度等级混凝土浇筑施工质量控制,通过苏州市发生案例,分析核心区存在质量问题主要原因,督促参建各方引起重视,从严把关,避免严重质量问题,对保证结构整体安全、满足结构使用年限具有重要意义。
It is common that the design strength of column and wall concrete in frame or frame shear wall structure is two or more grades higher than that of beam and slab concrete.The quality control of concrete pouring in its core area directly affects the overall bearing capacity and seismic performance of the structure.This paper focuses on the isolation measures for the core area of column,wall,beam and slab,introduces the quality control of concrete pouring construction with different strength grades,analyzes the main reasons for the quality problems in the core area through the cases in the city,and urges all parties involved to pay attention to it,strictly control it,avoid serious quality problems,and ensure the overall safety of the structure It is of great significance to meet the service life of the structure.
作者
俞菱庆
孔勤宇
俞久康
YU Ling-qing;KONG Qin-yu;YU Jiu-kang(Suzhou Construction Project Quality and Safety Supervision Station,Suzhou Jiangsu 215000China;Suzhou Jinjiahong Construction Engineering Co.,Ltd,Suzhou Jiangsu 215000China)
出处
《江苏建筑》
2021年第4期71-73,共3页
Jiangsu Construction
关键词
混凝土设计强度
核心区
隔离措施
质量控制
concrete design strength
core area
isolation measures
quality control
作者简介
俞菱庆,男(1964—),苏州市建设工程质量安全监督站,高级工程师,主要从事建设工程质量安全监督管理与研究。
