Open AccessExperimental study on deflection of recycled concrete twoway slab under concentrated load
Author(s) -
Pengjie Hu,
Guangxiu Fang,
Zhongwei Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/687/1/012044
Subject(s) - deflection (physics) , slab , structural engineering , test data , load testing , geotechnical engineering , computer science , geology , engineering , optics , physics , programming language
In order to study the deflection calculation method of recycled concrete two-way slab under concentrated load, a full-scale model of recycled concrete two-way slab was designed, and the replacement rate of recycled coarse aggregate was 30%. Through the loading test, the failure mode of the two-way slab was observed, and the test data of the whole process curve of the deflection changing with the load value and the development of the mid-span deflection were obtained. Based on the current theoretical formula, this paper uses Origin software to simulate the deflection of recycled concrete two-way slabs under concentrated load on the basis of comparing the deflection test value and the theoretical calculation value, and proposes a correction coefficient for the two-way slab deflection calculation. For the proposed two-way plate deflection calculation correction factor, the existing test data is used to verify it. The results show that the deflection value calculated according to the method in this paper is relatively close to the test value. The research results can provide reference for follow-up experiments.