期刊论文

Feng, Zheng;Pan, Rensheng

英文

Materials

1996-1944

2019

12

19

1-16

10.3390/ma12193254

Acknowledgments: The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China and the Hunan Provincial Innovation Foundation for Postgraduate. Funding: This research was funded by the National Natural Science Foundation of China (NO. 51778069, NO. 51808055), Excellent Youth Project of Hunan Education Department (NO. 18B131), the Hunan ProvincialInnovation Foundation for Postgraduate, China (NO. CX2018B522), the Open Fund of the Key Laboratory of Provincial and Ministerial Level of Bridge Engineering, China (NO.18KE04, No. 18KB03). The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China and the Hunan Provincial Innovation Foundation for Postgraduate. Funding: This research was funded by the National Natural Science Foundation of China (NO. 51778069, NO. 51808055), Excellent Youth Project of Hunan Education Department (NO. 18B131), the Hunan Provincial Innovation Foundation for Postgraduate, China (NO. CX2018B522), the Open Fund of the Key Laboratory of Provincial and Ministerial Level of Bridge Engineering, China (NO.18KE04, No. 18KB03).

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In order to study the direct shear properties of ultra-high performance concrete (UHPC) structures, 15 Z-shaped monolithic placement specimens (MPSs) and 12 Z-shaped waterjet treated specimens (WJTSs) were tested to study the shear behavior and failure modes. The effects of steel fiber shape, steel fiber volume fraction and interface treatment on the direct shear properties of UHPC were investigated. The test results demonstrate that the MPSs were reinforced with steel fibers and underwent ductile failure. The ultimate load of the MPS is about ...