基于中欧雪荷载规范的门式刚架加固有限元模型力学性能对比研究

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中图分类号：TU391 文献标志码：A 文章编号：1005-8249（2025）02-0117-07

DOI：10.19860/j.cnki.issn1005-8249.2025.02.020

Abstract：ToinvestigatetheimpactofsowloadspecificationsinGB51022—2O15*TechnicalSpecificationforStelStructure of Light-weight Buildings with Gabled Frames and NF EN 1991-1-3：2004-General actions - Snow loads * on gabled frame structures，this studyconductedparameter comparisons between the codesand established Midas Gen models for enginering casesreinforcedviastructural system modificationandbonded steelreinforcementmethods.Stressratios，stability， deflection，andothermechanicalindicatorsunderbothspecificationswerecomparedandvalidatedthrough finiteelement modeling.Resultsindicate：theChinesecodeemploysarelativelysimplifiedsnowloadcalculationmethod，withpartial parametersandrofsnowdistributioncoeffcientsdiferingfromthe Europeancode.Finiteelementanalysisrevealsthatthe Chinese code yieldsgenerall highersnow loadvaluesand mechanical parameterresults，particularlydemonstratinggreater conservatism in uneven snow distribution scenarios，while the European code produces smaler calculation resultsoveral.

Key words： reinforcement of portal frame；snow load; Chinese codes；European code； finite element analysis

0 引言

门式刚架结构因其轻量化设计、快速施工特性及优异经济性，在工业与民用建筑领域展现出强大的适应性。（剩余6766字）