结构工程师2024，Vol.40Issue(2)：192-201,10.
通孔灌浆连接预制混凝土加装电梯结构设计方法研究
Research on Design Method of Precast Concrete Structures Retrofitting with Elevators Using Through-Hole Grouting Connection
马泽峰 1王平山 1李承铭1
作者信息
- 1. 华东建筑设计研究院有限公司,上海 200041
- 折叠
摘要
Abstract
The precast concrete structures retrofitting with elevators using through-hole grouting connection can be widely applied to the elevator addition project of existing multi-story residential buildings.This paper introduces the system composition,construction process and key dimensions of this structure,including typical elevator shaft dimensions,minimum thickness of shear walls,and overhang length of connecting corridor.It discusses various dismantling options of the precast structure and the selection of lifting equipment,and reviews the design basis of the specific structure.The overall force performance of the structure is discussed in detail through the performance index of the structural model and the nonlinear dynamic analysis under severe earthquakes.Special attention is given to important and difficult structural design issues,such as the influence of the eccentricity of the overhanging connecting corridor,the design of vertical through-length reinforcement in the through-hole,the performance design of the positive section of the elevator shaft on the ground floor,and the shear strength of the horizontal construction joint on the grouted splice surface of the shaft on the ground floor.An economic comparison with the steel frame elevator structure shows that the precast concrete structure has safety,economy and durability and meets the construction requirements of green buildings.With the launch of large-scale products,the project of retrofitting elevators to existing residences will gradually realize alternative upgrades.关键词
装配式钢筋混凝土结构/加装电梯/通孔灌浆连接/悬挑连廊Key words
precast reinforced concrete structure/retrofitting with elevator/through-hole grouting connection/overhanging corridor引用本文复制引用
马泽峰,王平山,李承铭..通孔灌浆连接预制混凝土加装电梯结构设计方法研究[J].结构工程师,2024,40(2):192-201,10.
