Experimental study on the mechanical properties of non-reinforced UHPC element under biaxial stress states

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2024-11-26 DOI:10.1016/j.conbuildmat.2024.139265

Rurui Liu , Ran Ding , Xin Nie , Jiansheng Fan

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引用次数: 0

Abstract

The ultra high performance concrete (UHPC) has been gradually applied in bridge and building engineering to replace normal concrete as a new type of cementitious material. The biaxial strength criteria of UHPC play an essential role in engineering design and research. However, the experimental research on biaxial strength of UHPC is still lacking. In this study, four groups of biaxial loading tests on UHPC planar elements were carried out, using the Planar Bi-directional Element Tester (PBET) developed by Tsinghua University, including biaxial compressive test, biaxial tensile test, biaxial tension-compression sequential test, and biaxial tension-compression proportional test. The biaxial stress ratio is also studied as a key parameter. Based on the test results, the typical failure modes under different biaxial loading conditions as well as the biaxial strength criteria of UHPC are revealed. Taking the biaxial strength criteria of normal concrete as a reference, the complete biaxial strength envelope equations of UHPC are finally derived.

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.