配筋形式对四桩厚承台受力性能影响的研究  

Study on Form of Reinforcement Affecting Ultimate Loads of Thick Cap with Four Piles

作　　者：谷倩[1] 杨双双[1] 朱向阳[1] 张元元[2] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]武汉工业学院土木工程系,湖北武汉430023

出　　处：《华中科技大学学报（城市科学版）》2006年第4期44-47,共4页Journal of Huazhong University of Science and Technology

基　　金：湖北省自然科学基金资助项目(2004ABA030)

摘　　要：钢纤维混凝土四桩厚承台的性能试验研究结果表明,影响其极限荷载的因素主要有承台有效厚度、钢纤维体积率、混凝土基体强度等级、承台的剪跨比、纵向钢筋配筋率和配筋形式等,其中,配筋形式对钢纤维混凝土厚承台承载力的影响是很显著的.通过对4个底部配筋形式不同的桩基厚承台进行试验研究,表明底部钢筋按桁架模型配筋的桩基承台承载力最高.An experimental study on steel fiber reinforced concrete （SFRC） thick cap with four piles indicates that the factors affecting its ultimate loads are composed of its effective thickness, steel fiber volume ratio, concrete strength grade, shear span length, steel ratio and the form of reinforcement, in which the factor of the form of reinforcement affecting the ultimate loads of pile cap is distinct. The paper points out the ultimate load of concrete thick pile cap with truss model at its bottom is highest based on the tests of four reinforced concrete piles caps with different forms of reinforcements of four piles.

关 键 词：桩基厚承台 承载力 配筋形式 

分 类 号：TU528.571[建筑科学—建筑技术科学]