粉煤灰建筑壁板结构冲击荷载模拟分析

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关键词：粉煤灰壁板；冲击荷载；建筑构件；点云数据；点云分割

中图分类号：TP391 文献标志码：A 文章编号：1005-8249（2025）06-0158-06

DOI：10.19860/j.cnki.issn1005-8249.2025.06.026

Abstract：Tosolvethe problemof poor acuracy in3Dreconstructionofflyash building wall panelsafter external impact，a simulationanalysismethodforimpactloadofflyashbuildingwallpanel structureisproposed.Forthestructureofflyash building wallpanels，extract groupcodedatasuch as straight lines from DXFfiles toobtaincomplete geometricdata，identify building components，andverifyandadjusttheidentificationresultsbasedonelevant specificationsandlayoutpaternsto eliminate the influenceofexternalimpactsonanalysis.AfterconvertingtheDXFfileintopointclouddata，precisepointcloud dataisobtainedthroughacombinationofcoarseandfinesegmentationtoaddressthenoiseandoutlierissuescausedbyimpact. Thisdatais then input into Revit software along withthecomponentrecognitionresults，and impactload simulationanalysis is completedbyconnectingwall featurepoints.Theresultsshowsthatthistechnologycanaccuratelyidentifythegeometric informationof wallsandtheparametersof dorsand windows；Thevalueof pointcloudsegmentationreachesO.85after iteration；Thereconstructionvalueis lower thanthesimulateddamagevalue，avoiding theadverseeffectsof external shocks.Theproposed technologymethodprovidesareliablebasisforthesafetyassssmentofflyashbuilding wallpanel structures.

Key words：fly ash wall panels； impact load；building components；point cloud data；point cloud segmentation

0 引言

对于采用粉煤灰壁板作为填充材料的建筑结构，在遭受外部冲击后，壁板表面会出现凹凸不平的损伤。（剩余7759字）