(1 同济大学建筑设计研究院(集团)有限公司， 上海 200092； 2 同济大学土木工程学院建筑工程系， 上海 200092)

[摘要]  凝土变形是其湿热变化本质，混凝土的湿度分布对于混凝土构件的变形性能以及耐久性能有着非常重要的影响。内埋型钢对混凝土湿度向外扩散有着明显的阻碍作用，并且混凝土的温湿传导是相互耦合的。然而，目前在实际混凝土构件设计中，并没有真正考虑型钢对于混凝土中湿度的阻碍作用以及混凝土湿度扩散的温湿耦合效应。本文对构件的湿度扩散进行了分析，并考虑了型钢对于混凝土湿度扩散的阻碍作用以及耦合效应。

[关键词]  湿度分布； 内埋型钢； 湿热耦合； 变形性能

中图分类号:TU312⁺.1              文献标识码:A

作者简介：周瑛，Email: zhouying@tjadri.com。

Temperature moisture coupling effects in steel-RC composite member

Zhou Ying ¹, Yan Congzhi², Zhao Xin ^1,2

(1 Architectural Design & Research Institute of Tongji University (Group) Co. , Ltd. , Shanghai 200092, China;

2 Department of Building Engineering, Tongji University, Shanghai 200092, China)

Abstract: Concrete deformation is the essence of temperature and moisture changing. The moisture distribution of concrete is of great importance to the deformation performance and durability of concrete. Embedded steels of concrete will obviously obstruct the moisture diffusion route of the inner concrete. The temperature and moisture of concrete is coupled to each other. However, the interference effects from the presence of complex embedded steels and the coupled effect of temperature and moisture are actually not considered in current design practice of mega SRC columns.Moisture diffusion of concrete is analyzed and the coupled effect of temperature and moisture has been considered in this paper.

keywords: moisture distribution; embedded steels; coupled effect of temperature and moisture; deformation performance

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