预制混凝土构件中钢筋骨架对振动密实的影响  

Effect of reinforced steel frame on vibration and compaction in precast concrete members

作　　者：蔡安江[1] 叶康 舒展 杨奇琦 田凤祥 CAI Anjiang;YE Kang;SHU Zhan;YANG Qiqi;TIAN Fengxiang(School of Mechanical and Electrical Engineering,Xi′an University of Architecture and Technology,Xi′an 710200,China;Belt Conveyor Technology Innovation Center of Hebei Province,Hengshui 053000,China)

机构地区：[1]西安建筑科技大学机电工程学院,陕西西安710200 [2]河北省带式输送机技术创新中心,河北衡水053000

出　　处：《混凝土》2021年第4期113-115,共3页Concrete

基　　金：“十三五”国家重点研发计划项目(2017YFC0704005-01)。

摘　　要：随着装配式建筑的发展,预制混凝土构件在建筑行业中发挥着越来越重要的作用。采用离散元的方法,建立了混凝土模型并将其简化成粒径不同的3种模型颗粒,运用三维颗粒流分析软件仿真混凝土的振动成型过程,通过孔隙率的变化趋势来研究钢筋骨架在预制混凝土构件振动成型过程中对振动密实的影响。试验结果表明:钢筋骨架可以增强激振力的振导,对预制混凝土构件的振动密实及成型有着积极的促进作用。With the development of prefabricated buildings,precast concrete components are playing an increasingly important role in the construction industry.The discrete element method is used to establish a concrete model and simplify it into three model particles with different particle sizes.The three-dimensional particle flow simulation software is used to simulate the vibration forming process of concrete.The change in porosity is used to study the prefabrication of the steel skeleton.Influence of vibration compaction of concrete members during vibration forming.The experimental results show that the reinforced steel skeleton can enhance the transmission of excitation force,and has a positive effect on the vibration compaction and forming of precast concrete members.

关 键 词：预制混凝土构件 钢筋骨架 离散元 三维颗粒流 孔隙率 

分 类 号：TU528.7[建筑科学—建筑技术科学]