恶劣气候条件下的复合外墙

Composite Exterior Wall In Severe Environments

复合外墙在恶劣气候环境中会产生特殊问题,须有独特的解决方法。墙体的性能受施工速度、结构体系、使用情况和其它因素的影响,如施工误差和潮气的活动等。许多情况下,结构体系的选择及结构构件的分布会影响到墙体面层的耐久性和使用功能。本文对影响墙体面层在恶劣气候条件下使用性能的因素作一概述。为工程师提供设计此类墙体的指导。

Abstract: Exterior wall assemblies in severe environments pose special problems and require unique solutions. The assemblies are affected by the speed of construction, the choice of structural systems, the use and occupancy and other factors such as tolerances and moisture movements. The choice of system and the arrangement of its components in many cases influence the durability and serviceability of the cladding. This paper provides an overview of factors, which affect the performance of cladding systems in severe climatic conditions, and provides some guidelines as to the importance of these factors to the structural engineer designing such assemblies.