Orthogonal Analysis of Axial Bearing Capacity of Long Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate

Weidong Zhang; Guanyu Zhu; Jiajun Tang

doi:10.54691/hcx6ae61

Authors

Weidong Zhang
Guanyu Zhu
Jiajun Tang

DOI:

https://doi.org/10.54691/hcx6ae61

Keywords:

Ultra High Performance Concrete with Coarse Aggregate (UHPC-CA); Circular Steel Tube; Axial Bearing Capacity; Hoop Coefficient.

Abstract

The influence of steel pipe wall thickness, steel pipe length, ultra high performance concrete with coarse aggregate (UHPC-CA) strength, and steel grade on the axial compressive bearing capacity of round steel pipe UHPC-CA long columns was analyzed using orthogonal experimental method. The results indicate that the influence of various factors on the axial compressive bearing capacity of round steel tube UHPC-CA long columns is in the order of steel grade>steel tube wall thickness>steel tube length>UHPC-CA strength. The axial compressive bearing capacity increases with the increase of steel pipe wall thickness, UHPC-CA strength, and steel grade, and decreases with the increase of steel pipe outer diameter. When the aspect ratio is 8 and 10, the axial compressive bearing capacity increases with the increase of the hoop coefficient. When the aspect ratio is 12, the axial compressive bearing capacity first decreases and then increases with the increase of the hoop coefficient.

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References

[1] Peng Gaifei, Teng Yan, Huang Yanzhu, etc. Research on High Temperature Performance of Ultra High Performance Concrete with Coarse Aggregate in Fire [J]. Journal of North China University of Water Resources and Electric Power, 2013, 34 (1): 1-6.

[2] Yang Fengling, Ji Bank, Liu Wei, etc. Experimental study on ultra-high performance concrete containing coarse aggregates [J]. Concrete, 2018 (12): 110-113.

[3] Peng Gaifei, Yang Juan, Shi Yunxing. Experimental study on residual mechanical properties of ultra-high performance concrete after high temperature [J]. Journal of Civil Engineering, 2017, 50 (4): 73-79.

[4] Peng Gaifei, Yang Juan, Shi Yunxing, etc. Experimental Study on High Temperature Burst Resistance of Ultra High Performance Concrete [J]. Journal of Building Materials, 2017, 20 (2): 229-233+238.

[5] Zhu Yanpeng, Shao Yongjian. Basic Principles of Concrete Structures [M]. Beijing: China Architecture& Building Press, 2012.

[6] Yan Zhigang, Luo Hua, An Mingzhe. Research on the Interface Bonding Performance of Steel Tube Reactive Powder Concrete Columns [J]. Journal of Civil Engineering, 2010, 43 (8): 57-62.

[7] Wang Yifeng, Xu Fenghua, Xu Zhuangzhuang. Analysis of compressive performance of circular steel tube active powder concrete short columns based on ABAQUS [J]. Low temperature Building Technology, 2019, 41 (10): 41-43.

[8] Luo Hua. Research on the Axial Compression Performance of Activated Powder Concrete Short Columns with Circular Steel Tubes [D]. Beijing: Beijing Jiaotong University, 2011.

[9] Rong Qin, Zeng Yusheng, Hou Xiaomeng, etc. Experimental study on axial compression performance of steel fiber reinforced concrete short columns with circular steel tubes [J]. Journal of Building Structures, 2019, 40 (3): 247-253.

[10] Peng Gaifei, Yang Juan, Gao Yuxin, etc. Factors affecting the compressive strength of ultra-high performance concrete containing coarse aggregates [J]. Journal of North China University of Water Resources and Electric Power, 2012, 33 (6): 5-9.

[11] Yang Juan. Experimental Study on High Temperature Mechanical Properties, Bursting and Improvement Measures of Ultra High Performance Concrete with Coarse Aggregate [D]. Beijing: Beijing Jiaotong University, 2017.

[12] Huang Zhengyu, Li Shigen. Research on the Mechanical Properties of Ultra High Performance Concrete with Coarse Aggregate [J]. Journal of Hunan University (Natural Science Edition), 2018, 45 (3): 47-54.

[13] Luo Hua. Experimental and theoretical study on compressive performance of steel tube activated powder concrete columns [D]. Beijing: Beijing Jiaotong University, 2015.

[14] Tang Jiajun, Pei Changchun. Research on Optimal Selection of Mechanical Properties of Multi index Recycled Concrete Based on Queuing Scoring Method and Matrix Analysis Method [J]. Journal of Yanbian University (Natural Science Edition), 2019, 45 (3): 279-282.

[15] Wang Qiuwei, Wang Yang, Zhang Chunyao, etc. Research on the Axial Compression Performance of Steel Tube Activated Powder Concrete Short Columns Based on ABAQUS [J]. Journal of Disaster Prevention and Reduction Engineering, 2019, 39 (3): 421-429.