资源描述:
《常见的房屋损伤现象及其原因分析》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/216245163CommonPhenomenonandCausesofStructuresDamageArticle·January2011CITATIONSREADS0753authors,including:ZhiyongChenFPInnovations63PUBLICATIONS111CITATIONSSEEPROFILESomeoftheauthorsofthi
2、spublicationarealsoworkingontheserelatedprojects:ModellingofTimberStructuresunderForceandFireViewprojectWind-InducedResponseofLightWoodFrameBuildingsViewprojectAllcontentfollowingthispagewasuploadedbyZhiyongChenon31May2014.Theuserhasrequestedenhancementofthedownloadedfile.*常见的房屋损伤现象及其原因分
3、析121陈志勇黄波潘景龙(1.哈尔滨工业大学土木工程学院,哈尔滨150090;2杭州绿城海企房地产开发有限公司,杭州310008)摘要:根据以往在建房屋工程质量事故调查、既有建筑可靠度鉴定和抗震鉴定的实际工程经验,总结了房屋的常见损伤现象,并对损伤原因进行了详细的分析。常见的房屋损伤现象有:墙体和构件的斜裂缝、竖向裂缝和网状裂缝,建筑整体倾斜,承台桩剪断,构件屈曲,焊缝断裂,房屋坍塌,钢筋锈蚀,混凝土保护层脱离,钢材锈蚀,木材腐朽,钢和混凝土构件酸碱腐蚀等。导致房屋损伤的直接原因主要是:1)地基基础的沉降和不均匀沉降;2)温度作用;3)荷载作用;4)建筑材料和外
4、加剂等不良反应;5)不良反应环境作用;6)不良施工工艺等。为在建房屋工程质量事故调查、既有建筑可靠度鉴定和抗震鉴定等工作的进行具有借鉴。关键词:结构损伤;损伤现象;损伤原因COMMONDAMAGESTOHOUSESANDCAUSESANALYSIS121ChenZhiyongHuangBoPanJinglong(1SchoolofCivilEngineering,HarbinInstituteofTechnology,Harbin150090,China;2HangzhouGreenCityHaiqiRealEstateDevelopingCoLtd,Hang
5、zhou310008,China)Abstract:Accordingtotheactualprojectexperienceofaccidentsurveyofconstructionquality,reliabilityverificationofexitingbuilding,andindentificationofearthquakeresistance,somecommonphenomenaofstructuresdamageweresummarized,andtheircausesareanalysedCommonphenomenaofstrutrure
6、sdamageinclude:inclinedcrack,verticalcrack,andreticularcrackofwallandstructralconponents;integraldeclineofbuilding,shearfailureofpile,bucklingofstructuralmembers,failureofweldedseam,slumpingofbuilding,rusteatenofreinforcedbar,abscissionofconcretecoveringlayer,rusteatenofsteel,decayofwo
7、od,corrosionofsteelandconcretecomponentsThedirectcausesofstructuresdamageare:1)depositionandnonuniformdepositionoffoundation;2)temperatureeffect;3)loadeffect;4)untowardeffectofstructuralmaterialsandadmixture;5)untowardenvironmentaleffect;6)undesirableconstructiontechnol