空斗墙结构现场检测及计算分析.pdfVIP

建筑技术ConstructionDecoration

空斗墙结构现场检测及计算分析

高瑾

上海市房屋建筑设计院有限公司 上海 200062

摘 要 空斗墙是早期砖石结构中较传统的结构形式，在老旧房屋检测中常有遇到，但由于其整体性和抗震性均较

差，现行规范中已明确取消了该类结构，故现行相关规范中均无法找出空斗墙的检测评定依据，计算软件中也无空

斗墙结构体系。本文通过长期的工程实践经验总结了空斗墙结构的现场检测要点，并通过对历代砌体设计规范的研

读，提出了对空斗墙结构采用普通黏土实心砖墙模拟，通过修改材料容重、修正墙体受压承载力，得出符合空斗墙

实际情况的计算结果；最后介绍了空斗墙结构的抗震性评定方法，为空斗墙结构的老旧房屋现场检测与安全性评定

提供参考。

关键词 空斗墙；现场检测；计算模拟；修正系数；抗震性能

FieldInspectionandCalculationAnalysisofCavityWallStructure

GaoJin

ShanghaiMunicipalHousingDesignInstituteCo.,Ltd.,Shanghai200062,China

AbstractCavitywallisatraditionalstructureforminearlymasonrystructure,whichisoftenencounteredintheinspection

ofoldbuildings.However,duetoitspoorintegrityandseismiccapacity,thiskindofstructurehasbeenexplicitlycanceled

inthecurrentnorms,sothedetectionandevaluationbasisofcavitywallcannotbefoundinthecurrentrelevantnorms,and

thereisnostructuralsystemofcavitywallstructureinthecalculationsoftware.Throughlong-termengineeringpractice

experience,thispapersummarizesthemainpointsoffieldinspectionofcavitywallstructure,andthroughthestudyof

masonrydesignnormsinthepast,itproposestousecommonclaysolidbrickwallsimulationofcavitywallstructure,

throughmodifyingthematerialbulkdensityandmodifyingthewallcompressioncapacity,itobtainsthecalculationresults

inlinewiththeactualsituationofcavitywallstructure.Finally,theseismicresistanceevaluationmethodofcavitywall

structureisintroduced.Itprovidesreferenceforthefieldinspectionandsafetyassessmentoftheoldbuildingswithcavity

wallstructure.

Keywordscavitywallstructure;fieldinspection;calculationsimulation;correctionfactor;seismiccap