Jun Cheng
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Jun Cheng has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Chao Zhu
Chongqing Design Group Co., Ltd., Chongqing 400015, China
1 shared publication - Chunlin Du
Chongqing Design Group Co., Ltd., Chongqing 400015, China
1 shared publication - Jun Yang
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
1 shared publication - Yanxin Qi
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
1 shared publication - Yinbin Li
Guizhou Provincial Transportation Planning Survey and Design Institute Co., Ltd., Guiyang 550081, China
1 shared publication - Zhimei Jiang
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
1 shared publication
Latest Publications
- Open Access
Flexural Performance of RC Beams Strengthened with High-Strength Steel Wire Mesh and UHPC
This study proposes a strengthening technique comprising a combination of high-strength steel wire mesh and ultra-high performance concrete (UHPC) to address the challenge of the insufficient bearing capacity of existing structures. The tensile performance of high-strength wire mesh and the crack resistance of UHPC were comprehensively considered in this technique. To evaluate the influence of the steel fiber volume ratio and the high-strength steel mesh strengthening ratio on the axial tensile performance, uniaxial tensile tests were carried out on two sets of dumbbell-shaped specimens. A constitutive model of the wire mesh UHPC that matched the experimental results was established. The finite element analysis of RC beams strengthened with high-strength wire mesh and UHPC was carried out, based on this constitutive model. The experimental results indicated the following: (a) The crack resistance and ultimate strength of the specimen reinforced with the high-strength steel wire mesh were effectively enhanced, with enhancement ratios of 97.8% and 124.8%, respectively. (b) The embedded interactions between the steel wire mesh and UHPC were simulated by considering the material nonlinearity. The finite element modeling of RC beams strengthened with wire mesh UHPC was achieved. (c) Positive correlations were observed between the thickness of the UHPC layer, the steel fiber volume ratio, and the high-strength wire mesh layer with the flexural capacity of the strengthened beams. The cracking and ultimate moments were maximally enhanced by 96.2% and 99.4%, respectively.
Open AccessFlexural Performance of RC Beams Strengthened with High-Strength Steel Wire Mesh and UHPC
This study proposes a strengthening technique comprising a combination of high-strength steel wire mesh and ultra-high performance concrete (UHPC) to address the challenge of the insufficient bearing capacity of existing structures. The tensile performance of high-strength wire mesh and the crack resistance of UHPC were comprehensively considered in this technique. To evaluate the influence of the steel fiber volume ratio and the high-strength steel mesh strengthening ratio on the axial tensile performance, uniaxial tensile tests were carried out on two sets of dumbbell-shaped specimens. A constitutive model of the wire mesh UHPC that matched the experimental results was established. The finite element analysis of RC beams strengthened with high-strength wire mesh and UHPC was carried out, based on this constitutive model. The experimental results indicated the following: (a) The crack resistance and ultimate strength of the specimen reinforced with the high-strength steel wire mesh were effectively enhanced, with enhancement ratios of 97.8% and 124.8%, respectively. (b) The embedded interactions between the steel wire mesh and UHPC were simulated by considering the material nonlinearity. The finite element modeling of RC beams strengthened with wire mesh UHPC was achieved. (c) Positive correlations were observed between the thickness of the UHPC layer, the steel fiber volume ratio, and the high-strength wire mesh layer with the flexural capacity of the strengthened beams. The cracking and ultimate moments were maximally enhanced by 96.2% and 99.4%, respectively.