2015年5月下 施工技术 第44卷第10期 CONSTRUCTION TECHNOLOGY 23 D0I:10.7672/sgjs2015100023 高温环境下钢管柱柱脚重力灌浆技术 李引胜，薛涛，王晓伟，行宏，石峰 (陕西建工第一建设集团有限公司，陕西西安710068) [摘要]灌浆料具有自流性好，早凝、早强、无收缩、微膨胀等诸多优点，然而在高温环境下自流性受到温度影响，流 清面迅速凝结，空气滞留于结构内部，形成空鼓最终受压开裂，难以保证工程质量.结合延长石油科研中心工程柱 脚灌浆施工过程，温控、改变工艺等措施，改善灌浆料流动性以及整个浇筑过程连贯性.最终提高柱脚灌浆质量. [关键词]高层建筑；钢管柱；重力压浆；降温；流动性 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2015)10-0023-02 Technology of Gravity Grouting of Steel Tubular Column Foot Under the Environment of High Temperature Li Yinsheng Xue Tao Wang Xiaowei Xing Hong Shi Feng (SCEGC No.1 Construction Engineering Group Co.Ltd.Xi'an Shaanxi 710068 China) Abstract:Grouting material has many advantages such as good gravity flow fast hard early strength no shrinkage and micro expansion etc.However due to temperature changes in gravity flow under the environment of high temperature flowing surface rapid condensation air trapped in the internal structure which forming hollowing and finally pressed to crack so it is difficult to guarantee the quality of the project.However with the measures of Yanchang Petroleum Headquarters Tower in construction process controlling the temperature using gravity and changing the process etc.to improve the grouting material flow and the whole construction process of coherence.Finally the quality of column foot grouting is improved. Key words:tall buildings;steel tubular column;gravity grouting;cooling;liquidity 1工程概况 延长石油科研中心项目工程由塔楼和裙楼两 部分组成，总建筑面积为21.7万m2.塔楼地上46 高强无收 缩灌浆料 层，地下3层，建筑高度217.30m 主体结构为钢管 工...
高温环境下钢管柱柱脚重力灌浆技术.pdf
