Study on Flexural and Shear Behavior of UHPC Rhombus-Strip-Shaped Joint-Reference-Cited by-同舟云学术

Study on Flexural and Shear Behavior of UHPC Rhombus-Strip-Shaped Joint

Published:2023-11-03 Issue:1 Volume:17 Page:
ISSN:2234-1315
Container-title:International Journal of Concrete Structures and Materials
language:en
Short-container-title:Int J Concr Struct Mater

Author:

Deng Shuwen,Yan Banfu,Shen Lian,Qin Mingxin,Jia Yina

Abstract

AbstractAccelerated bridge construction (ABC) has many advantages for bridge construction in modern society. While for ABC, the post-cast joint is always the weakest and most critical part. This paper presents a UHPC rhombus-strip-shaped (RSS) joint suitable for ABC. Several model tests were carried out to verify its resistance to flexural and shear. First, large-scale model tests are advanced to confirm its flexural properties. The results show that densified and welded joint interface rebars can significantly improve the ultimate bearing capacity and durability-based cracking stress of the RSS joint beams, and the ultimate bearing capacity can reach 90% of the complete beam. Then the shear-resistance tests were carried out. The results show that the UHPC RSS joint beam has excellent bending-shear mechanical properties and better ductility. Lastly, the ultimate flexural bearing capacity and shear-resistance capacity calculation methods were obtained.

Funder

Natural Science Foundation of China

Hunan Provincial Department of Education

Natural Science Foundation of Hunan Province

Publisher

Springer Science and Business Media LLC

Subject

Ocean Engineering,Civil and Structural Engineering

Link

https://link.springer.com/content/pdf/10.1186/s40069-023-00642-z.pdf

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