文献类型：期刊文献

英文题名：Experimental study of prestressed steel-HFRC composite girders under hogging moment

作者：He, Yuliang[1];Shen, Haibo[1];Zhao, Wenjian[2];Wu, Qiangqiang[3];Lou, Tiejiong[4]

机构：[1]Shaoxing Univ, Coll Civil Engn, Shaoxing 312000, Peoples R China;[2]Hua Hui Grp, 508 West Huangcheng Rd, Shaoxing 312000, Peoples R China;[3]Zhejiang Commun Construct Grp Co Ltd, Hangzhou 310000, Peoples R China;[4]Univ Coimbra, CEMMPRE, ARISE, P-3030788 Coimbra, Portugal

年份：2024

卷号：21

外文期刊名：CASE STUDIES IN CONSTRUCTION MATERIALS

收录：SCI-EXPANDED(收录号：WOS:001286514500001)、、EI(收录号：20243216804141)、Scopus(收录号：2-s2.0-85200159398)、WOS

基金：This work was financially supported by Shaoxing industrial key technology project (2022B43002), by 2022 Science and Technology Project of Zhejiang Province Construction Department (2022K240), and by the Portuguese Foundation for Science and Technology (2022.04729.CEECIND/CP1714/CT0010, UIDB/00285/2020 and LA/P/0112/2020).

语种：英文

外文关键词：Prestressing; Hybrid fiber reinforced concrete; Composite beam; Test

外文摘要：To alleviate cracks in the hogging region of continuous steel-concrete composite girders, the hybrid fiber reinforced concrete (HFRC) and prestressing technique were introduced to exploit a novel type of composite girders (prestressed steel-HFRC composite girders). Four specimens with different concrete slabs (normal concrete (NC) slab, prestressed NC slab, HFRC slab, prestressed HFRC slab) were tested under hogging moment to investigate their mechanical properties. The test results showed that the prestressed steel-HFRC composite girder could take advantage of the synergy of the prestressing technique and HFRC and, therefore, its ultimate capacity, cracking load and stiffness were the biggest while the crack width was the smallest among the specimens investigated. In addition, practical equations of ultimate/crack moment and crack width were obtained based on the test results. The proposed equations could provide the reference in the design of prestressed continuous steel-HFRC composite girders.