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JP2011080223A Construction method for reducing crack in reinforced concrete structure 审中-公开
标题翻译：减少混凝土结构裂缝的施工方法
公开(公告)号：JP2011080223A
公开(公告)日：2011-04-21
申请号：JP2009232194
申请日：2009-10-06
申请人： Takenaka Komuten Co Ltd , 株式会社竹中工務店
发明人： HANAI ATSUCHIKA , OTA HIROAKI , MINAGAWA YASUYUKI , SAKAI YASUNARI
IPC分类号： E04C5/02 , E04B1/62
摘要： PROBLEM TO BE SOLVED: To provide a construction method for reducing the appearance of cracks caused by drying shrinkage of placed concrete, in the construction of a reinforced concrete structure.
SOLUTION: Reinforcements crossing a shrinkage zone are connected together by means of a lap joint; a marking with a length equivalent to the pre-computed target initial shrinkage amount of the concrete in a position at a distance necessary for the securement of the strength of the reinforced concrete structure from its leading end is applied to the one reference reinforcement of the right and left reinforcements elongated in the inward direction of the shrinkage zone; a leading end of the lap reinforcement elongated from the other side overlaps the reference reinforcement with a length exceeding the width dimension of the target initial shrinkage amount in the application of the marking to the reference reinforcement; and at the stage where the drying shrinkage amount of the placed concrete reaches the target initial shrinkage amount, post-cast concrete is placed in the shrinkage zone.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在钢筋混凝土结构的构造中减少由混凝土的干燥收缩引起的裂纹的外观的施工方法。
解决方案：穿过收缩区的加固件通过搭接接头连接在一起; 一个长度相当于预先计算出的目标初始收缩量的混凝土在距离其前端确定钢筋混凝土结构强度所需的距离处的位置被应用于右侧的一个参考加强件并且在收缩区的向内方向上留下增强件; 从另一侧伸长的搭接部加强件的前端与参考加强件相比重叠，其长度超过了将标记应用于参考加强件时的目标初始收缩量的宽度尺寸; 在混凝土的干燥收缩量达到目标初始收缩量的阶段，将后期混凝土置于收缩区域。版权所有（C）2011，JPO＆INPIT

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