河南广播电视塔基础混凝土超长无缝施工技术  

JOINTLESS CONSTRUCTION TECHNOLOGY ANALYSIS OF FOUNDATION CONCRETE FOR HENAN TV TOWER

作　　者：闫祥梅[1] 

机构地区：[1]郑州航空工业管理学院,郑州450000

出　　处：《工业建筑》2011年第7期92-95,73,共5页Industrial Construction

摘　　要：河南省广播电视发射塔基础结构形式为桩筏复合基础,基础底板未设置后浇带和膨胀加强带,属超长结构无缝施工。通过对河南广播电视发射塔基础的大体积混凝土超长无缝施工技术的介绍及各测试位置的相邻测点温差的监测表明,混凝土各测点温差均未超过监测报警温差25℃,没有产生较大的温度梯度。整个底板施工完成后未产生裂缝,混凝土裂缝得到了有效控制。该技术可控制大体积超长混凝土结构裂缝的产生。The foundation type of Henan broadcast and TV tower is a pile raft foundation.The jointless construction technology of mass concrete is analyzed for its foundation slab has no post poured belt and concrete expansion and strengthened belt.It was introduced the jointless construction technology of the TV tower mass concrete.The results showed that temperature difference of two adjacent measuring points at the same position is less than 25 ℃.The technology controlled concrete crack effectively and provided construction experience for construction of similar projects.

关 键 词：大体积混凝土 基础施工 施工技术 

分 类 号：TU755[建筑科学—建筑技术科学]