(1 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院(集團(tuán))有限公司， 上海 200092； 2 同濟(jì)大學(xué)土木工程學(xué)院建筑工程系， 上海 200092)

[摘要]  凝土變形是其濕熱變化本質(zhì)，混凝土的濕度分布對于混凝土構(gòu)件的變形性能以及耐久性能有著非常重要的影響。內(nèi)埋型鋼對混凝土濕度向外擴(kuò)散有著明顯的阻礙作用，并且混凝土的溫濕傳導(dǎo)是相互耦合的。然而，目前在實(shí)際混凝土構(gòu)件設(shè)計(jì)中，并沒有真正考慮型鋼對于混凝土中濕度的阻礙作用以及混凝土濕度擴(kuò)散的溫濕耦合效應(yīng)。本文對構(gòu)件的濕度擴(kuò)散進(jìn)行了分析，并考慮了型鋼對于混凝土濕度擴(kuò)散的阻礙作用以及耦合效應(yīng)。

[關(guān)鍵詞]  濕度分布； 內(nèi)埋型鋼； 濕熱耦合； 變形性能

中圖分類號:TU312⁺.1              文獻(xiàn)標(biāo)識碼:A

作者簡介：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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