水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2013年
6期
143-146,151
,共5页
外墙外保温系统%温度作用%荷载作用%耦合效应
外牆外保溫繫統%溫度作用%荷載作用%耦閤效應
외장외보온계통%온도작용%하재작용%우합효응
outer thermal insulation system%temperature impact%load impact%coupling effect
由不同物理力学性能材料组成的复合轻质外保温墙体,在多因素的作用下引起整体粉刷墙面的开裂、脱落等破坏现象。试验按照实际工程构造尺寸制作了两组六个试件,通过冷热箱、密封试件真空负压组合试验装置,按1∶1相似比模拟温度、重力、风力等作用,对不同因素组合工况测试各构造层在温度与荷载共同作用下的耦合效应,给出了不同工况下保温层及饰面层各测点的温度场分布规律,整理出了耦合效应的应力变化特征相关曲线。试验成果可为研究解决外保温墙面破坏问题提供借鉴。
由不同物理力學性能材料組成的複閤輕質外保溫牆體,在多因素的作用下引起整體粉刷牆麵的開裂、脫落等破壞現象。試驗按照實際工程構造呎吋製作瞭兩組六箇試件,通過冷熱箱、密封試件真空負壓組閤試驗裝置,按1∶1相似比模擬溫度、重力、風力等作用,對不同因素組閤工況測試各構造層在溫度與荷載共同作用下的耦閤效應,給齣瞭不同工況下保溫層及飾麵層各測點的溫度場分佈規律,整理齣瞭耦閤效應的應力變化特徵相關麯線。試驗成果可為研究解決外保溫牆麵破壞問題提供藉鑒。
유불동물리역학성능재료조성적복합경질외보온장체,재다인소적작용하인기정체분쇄장면적개렬、탈락등파배현상。시험안조실제공정구조척촌제작료량조륙개시건,통과랭열상、밀봉시건진공부압조합시험장치,안1∶1상사비모의온도、중력、풍력등작용,대불동인소조합공황측시각구조층재온도여하재공동작용하적우합효응,급출료불동공황하보온층급식면층각측점적온도장분포규률,정리출료우합효응적응력변화특정상관곡선。시험성과가위연구해결외보온장면파배문제제공차감。
The outer thermal insulating wall with lightweight layer is composed of the material layers with different physi -cal and mechanical properties .Under the impact of multiple external factors ,the interplays between different layers woul cause the whole plaster skin cracked and fallen off .Six pieces of specimen based on practical project are made with the scale of 1∶1 and classified into two groups ,the impacts from temperature ,gravity and wind are simulated by the experi-ments with the special device which consists of hot-cold boxes ,sealed box and vacuum pump .Then ,in different given conditions with multiple external factors ,the relationship and distribution of stress and strain are tested ,and the distribu-tion of temperature and the characteristic curves of coupling stress in different given conditions are also sorted out .The test results could provide some references to solve the damage problems of the plaster skin of the composite wall with outer thermal insulating light-weight layer .