摘要
劲性混凝土结构是今后高层建筑应用的主要结构形式之一,然而目前对于这种结构的研究还不完善,为了对建筑用劲性混凝土梁柱节点受力性能有更深入的了解,需对其实现有限元分析。首先,利用位移有限元分析法对混凝土结构进行设定且将其离散为小单元等效系统,而单元集合形成原始结构,再建立每个组成单元的平衡方程,结合后引入混凝土和钢筋的非线性条件求解该方程,计算得出原始结构在离散点的未知量结果。其次,制作轴压比相同的两块混凝土试件,依据有限元分析通过反复低周荷载实验,分析两块混凝土试件的承载力、形态变化、耗能能力等方面对节点受力性能的影响。仿真实验证明,通过对设计的两块混凝土试件进行实验后得出结果与有限元分析计算结果较吻合。
The high-strength concrete-filled steel tube shear wall is a new type of assembly member,which combines the steel pipe and the concrete, which is convenient for the production and uses the onsite assembling method to provide the building foundation for the high- rise building. This kind of concrete shear wall combines two materials The superior performance can further improve shear strength of shear wall. In order to study the stress effect of high-strength concrete-filled steel-tube shear wall more comprehensively, the finite element method is used to simulate the load-carrying capacity of highstrength concrete-filled steel-tube shear wall by finite element method. Stress and wall deformation, and can describe in detail the development and development of cracks in the shear wall under stress. The shear capacity of the shear wall is calculated. Secondly, in order to study the shear strength of the high strength concrete shear wall of steel pipe in Xichang area, two concrete shear walls are designed and fabricated to carry out the load The failure process and failure mode of the specimen under the loading force were observed and recorded, and the shear lag behavior of the shear wall was studied. Finally, the experimental results were compared with the good agreement.
作者
王晶华
Wang Jinghua(Sias International University,Zhengzhou 451150,China)
出处
《科技通报》
北大核心
2017年第1期178-181,共4页
Bulletin of Science and Technology
