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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2026年01期
Page:
195-208
Research Field:
建筑结构
Publishing date:

Info

Title:
-
Author(s):
LIU Xinzhao1; 2;  HUANG Hua1; 2; 3;  ZENG Fankui1; 2
（1. School of Civil and Architecture Engineering, Xi’an Technological University, Xi’an 710021, Shaanxi, China；?
2. School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, Shaanxi, China；
3. Shaanxi Province “Four Subjects and One Union” Large-span Spatial Structure Schoolenterprise Joint Research Center, Xi’an 710021, Shaanxi, China）
Keywords:
super high-rise building;  jacking steel platform;  finite element analysis;  installation construction simulation
PACS:
TU974
DOI:
10.19815/j.jace.2024.10077
Abstract:
To ensure the safety of the key system of the jacking steel platform during its operational phase and the installation and construction process, the finite element analysis of its key system was conducted and the structural integrity safety under three operational phases including jacking, construction, and lifting was verified. Based on the analysis results, an efficient installation and construction scheme was designed. Key components were hoisted and verified using finite element software, and the specifications of the steel wire ropes used during hoisting were determined according to actual needs. A simulation analysis of the installation and construction of the key system of the jacking steel platform was also carried out. The results show that the stress and vertical displacement of the key system of the jacking steel platform are the largest during the construction phase, and the maximum values are within the limits of the steel structure design standards. Linear buckling analysis shows that the steel platform will become unstable only under five times the design load, and the overall strength, stiffness, and stability of the structure meet the requirements. The stress and vertical displacement of each component of the key system of the jacking steel platform during hoisting operations are in compliance with the requirements of the steel structure design standards. The stress and vertical displacement of the structure gradually increase during the installation of the steel truss, but the maximum stress and vertical displacement values are far less than the requirements of the steel structure design standards, indicating that this installation and construction scheme has a high level of safety. The analysis results can provide a theoretical basis for the formulation of the installation and construction scheme.

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Memo

Memo:
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Last Update: 2026-01-20