膨胀混凝土在钢管混凝土中的应用  

Application of expansive concrete in concrete filled steel tube

作　　者：刘晓[1] 陈兵[1] 

机构地区：[1]上海交通大学土木系,上海200240

出　　处：《混凝土》2006年第7期52-54,共3页Concrete

摘　　要：为了解决钢管混凝土受荷初期没有紧箍力,不能充分发挥受力优势的问题,在国内日益增多的对钢管膨胀混凝土的研究,取得了一定的成果。本文根据对钢管膨胀混凝土的研究,简要的介绍了钢管混凝土和钢管膨胀混凝土的工作原理,着重阐述膨胀率、混凝土强度、含钢率和徐变对钢管膨胀混凝土的影响,以及钢管膨胀混凝土的优势和在我国的工程实际应用。In order to solve the problem that there is no confining pressure of concrete-filled steel tube in initial stage, more and more study on expansive concrete-filled steel tube comes up. Based on the previous research of expansive concrete-filled tube, the principles of work of expansive concrete-filled tube and concrete-filled steel tube were introduced. Particularly the influences of expansive rate, concrete strength, steel ratio and creep on the performance of expansive concrete-filled steel tube were studied. In the end, the expansive concrete-filled steel tube＇s advantages and engineering practice in our country were also discussed in the paper.

关 键 词：钢管混凝土 钢管膨胀混凝土 力学性能 

分 类 号：TU528.55[建筑科学—建筑技术科学]