Investigating the Influence of Fluctuating Humidity and Temperature on Creep Deformation in High-Performance Concrete Beams: A Comparative Study between Natural and Laboratorial Environmental Tests

被引：0
|
作者：
Zhang, Yixue [1 ,2 ]
Zhang, Jun [2 ]
Mao, Jianghong [3 ]
Lu, Fei [4 ]
Jiang, Zhuqing [5 ]
机构：
[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310058, Peoples R China
[2] Ningbo Tech Univ, Coll Civil Engn & Architecture, Ningbo 315100, Peoples R China
[3] Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China
[4] Huzhou Traff & Plan Design Inst, Huzhou 313000, Peoples R China
[5] 248 Geol Brigade Shandong Nucl Ind, Qingdao 266041, Peoples R China
来源：
MATERIALS | 2024年 / 17卷 / 05期
基金：
中国国家自然科学基金;
关键词：
HPC beams; creep; varying ambience; influence function; humidity; temperature; bridge; PREDICTION MODEL; DRYING SHRINKAGE; DESIGN;
D O I：
10.3390/ma17050998
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
To investigate the influence of temperature and humidity variations on creep in high-performance concrete beams, beam tests were conducted in both natural and laboratory settings. The findings indicate that the variations in creep primarily stem from temperature changes, whereas humidity changes have little influence on fluctuations in both basic creep and total creep. The influence of humidity on creep is more strongly reflected in the magnitude of creep. Functions describing the influence of temperature and humidity on the creep behavior of high-performance concrete (HPC) subjected to fluctuating conditions are proposed. The findings were employed to examine creep deformation in engineering applications across four places. This study complements the correction method for the creep of members under fluctuating temperature and humidity. This research application can provide a basis for the calculation of the long-term deformation of HPC structures in natural environments.
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页数：19
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