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建筑科学原理的应用:露水与禁忌.pdf

上传人: 探** 编号:711909 2025-06-04 77页 10.07MB

1、Alex KosisSimpson Gumpertz&HegerBuilding Science Principles in ActionThe Dews and DontsCaroline KlatmanSimpson Gumpertz&HegerAlex KosisAssociate PrincipalSGHCaroline KlatmanSenior Consulting EngineerSGHBuilding Science Principles in ActionBuilding science includes the study of how heat,air,and moist

2、ure interact with primary building systems,including the building enclosure.It is a critical component of design that that focuses on the interaction between the building enclosure,interior space conditions,and exterior climate conditions and can have significant impacts on building performance,dura

3、bility,and occupant experience.Informed by new design practice and investigation,this presentation will touch on the basics of applying building science concepts to building enclosure design.The presentation will also explore,through a series of project examples and industry practices,everyday build

4、ing science questions and solutions that are often situationally dependent.Learning Objectives1.Identify key building science principles that apply to building enclosure design.2.Understand how building enclosures manage heat,air,water,and vapor flow.3.Discuss how codes and standards address buildin

5、g science issues.4.Recognize the interdependency of building science concepts.5.Recognize building science-related consequences and performance impacts of building enclosure design choices.BUILDING ENCLOSURE BASICSHOW BUILDING ENCLOSURES MANAGE HEAT,AIR,WATER,AND VAPOR FLOWBUILDING ENCLOSURE BASICSR

6、ainscreen(Drained Cavity Wall)Barrier Wall(Face-Sealed)Thermal BarrierVapor RetarderWater BarrierAir BarrierEvaluation Criteria:PerformanceReliabilityDurabilitySuitabilityConstructability+ContinuityFunction:Rainwater/GroundwaterControlCondensation Control&Energy ConsumptionBUILDING ENCLOSURE BASICST

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本文主要讨论了建筑科学原理在建筑围护结构设计中的应用。以下是关键点: 1. 建筑科学涉及热、空气和水分与主要建筑系统的交互,对建筑性能、耐久性和居住者体验有重大影响。 2. 文章强调了建筑围护结构管理热、空气和水分的重要性,并提出了四种屏障:热屏障、蒸汽屏障、水和空气屏障。 3. 介绍了热桥的概念及其对建筑能耗、室内舒适度和耐久性的影响,并提出了一些缓解策略。 4. 讨论了建筑围护结构中蒸汽屏障的放置,以及不同气候条件下蒸汽渗透的方向。 5. 文章指出,冷表面温度和高相对湿度是导致室内表面冷凝的关键因素,并提出了相应的解决措施。 核心数据引用: - 建筑围护结构的基本功能包括管理热、空气、水和蒸汽流动。 - 热桥会导致有效热阻值降低,影响建筑性能。 - 蒸汽渗透方向通常是从内到外在冷天气中,从外到内在暖天气中。 - 室内70°F、30%相对湿度条件下,蒸汽压力为0.2220英寸汞柱;室外32°F、70%相对湿度条件下,蒸汽压力为0.1264英寸汞柱。 以上内容概括了文章的核心要点,字数不超过250字。
"建筑科学原理如何影响性能?" "如何避免室内表面结露问题?" "建筑围护结构中的四大屏障是什么?"
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