Behavior of UHPC-RW-RC wall panel under various temperature and humidity conditions

Xiangguo Wu , Shiyuan Yu , Xiaokun Tao , Baochun Chen , Hui Liu , Ming Yang , Thomas H.-K. Kang

Abstract

Mechanical and thermal properties of composite sandwich wall panels are affected by changes in their external environment. Humidity and temperature changes induce stress on wall panels and their core connectors. Under the action of ambient temperature, temperature on the outer layer of the wall panel changes greatly, while that on the inner layer only changes slightly. As a result, stress concentration exists at the intersection of the connector and the wall blade. In this paper, temperature field and stress field distribution of UHPC-RW-RC (Ultra-High Performance Concrete - Rock Wool - Reinforced Concrete) wall panel under high temperature-sprinkling and heating-freezing conditions were investigated by using the general finite element software ABAQUS. Additionally, design of the connection between the wall panel and the main structure is proposed. Findings may serve as a scientific reference for design of high performance composite sandwich wall panels.

Key Words

finite element analysis; modeling; simulation; ultra-high performance concrete; rock wool; sandwich wall panel; temperature; humidity

Address

Xiangguo Wu — College of Civil Engineering, Fuzhou University, Fuzhou, 350108, China; Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of the Industry and Information Technology, Harbin Institute of Technology, Harbin, 150090, China
Shiyuan Yu — Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of the Industry and Information Technology, Harbin Institute of Technology, Harbin, 150090, China
Xiaokun Tao — Hebei Construction Material Vocational & Technical College, Qinhuangdao, Heibei, 066004, China
Baochun Chen — College of Civil Engineering, Fuzhou University, Fuzhou, 350108, China
Hui Liu — Qinhuangdao Municipal Building Material Group Co., Ltd., Qinhuangdao, Heibei, 066000, China
Ming Yang — Hebei Construction Material Vocational & Technical College, Qinhuangdao, Heibei, 066004, China
Thomas H.-K. Kang — Department of Architecture & Architectural Engineering and Engineering Research Institute, Seoul National University, Seoul, 08826, Republic of Korea

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