大直径深仓仓壁环向钢筋接头连接方式的探讨

• 作 者: 杨翔虎 马忠浩
• 机 构: 镇江建工建设集团有限公司,
• 出 处: 建筑结构
• 发表日期: 2010年S1期
• 关键词: 钢筋接头 接头部位 受拉钢筋 竖向裂缝 钢筋搭接 筒仓 水泥生料 壁结构 连接方式 设计规范

0引言近两年发现不少直径22.5m、高61.8m的水泥生料均化库在交工投产3~5年后出现结构竖向裂缝。若不及时处理或处理不到位,开裂会越来越严重,直至钢筋先从接头部位拔出,导致筒仓垮塌。经分析产生严重开裂的原因很多,就其中争论较大的受拉钢筋接头连接方式谈一些看法。仓壁结构设计介绍见文[1]。

0 Introduction In the past two years, many found that the diameter of 22.5m, 61.8m high cement raw material homogenization of the library put into operation after 3 to 5 years after the vertical cracks in the structure. If not handled in time or not in place, cracking will be more serious, until the first pull out from the joints, resulting in the collapse of silos. There are many reasons for the severe cracking caused by the analysis, and some opinions on the connection mode of the tensioned steel bar joints which are more controversial are discussed. Wharf structure design introduction see article [1].