Y型巨柱斜撑高位转换结构顶升泵送混凝土施工技术  

Construction Technology of Jack-up Pumping Concrete for Y Type Giant Rider Shore High-level Transfer Structure

作　　者：李树文 余红福 龙叶天 蔡继斌 刘雨 

机构地区：[1]中建三局集团有限公司成都分公司,610041

出　　处：《混凝土与水泥制品》2016年第7期72-76,共5页China Concrete and Cement Products

摘　　要：Y型巨柱斜撑高位转换结构是一种较为复杂的钢管混凝土结构体系,基于此类结构内部带有多层加劲肋板的封闭钢管混凝土结构具有操作空间狭小,浇筑工艺困难、内部空气难以排除、混凝土成型质量不易控制的特点。本文结合西宁某工程实践,提出了一种Y型巨柱斜撑高位转换体系中高位封闭斜撑钢管自密实混凝土的泵送顶升施工技术。Y type giant rider shore high-level transfer structure is a complex concrete-filled steel tube structure system. Based on characteristic that of ch）sed concrete-filled steel tube structure with muhilayer stiffening rib plate in inner of this type of structure has limited operation space and it is difficult to pour concrete, exhaust air and control the mohting quality of concrete. Combined with a Xining engineering practice, pumping jack-up construction technique of high-level closed rider shore in concrete-filled steel tube and self-compacting concrete in Y type giant rider shore high- level transfer system is put forward.

关 键 词：高位转换体系 钢管混凝土 自密实混凝土 泵送顶升 施工技术 

分 类 号：TU74[建筑科学—建筑技术科学]