Compression behavior of ultra-high performance concrete (UHPC) confined with high-strength rectilinear ties

被引：7
|
作者：
Chang, Wei [1 ]
Zheng, Wenzhong [1 ,2 ,3 ]
Hao, Meijing [3 ]
机构：
[1] Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China
[2] Harbin Inst Technol, Key Lab Smart Prevent & Mitigat Civil Engn Disast, Minist Ind & Informat Technol, Harbin 150090, Peoples R China
[3] Harbin Inst Technol, Sch Civil Engn, 202 Haihe Rd, Harbin, Peoples R China
来源：
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2021年 / 22卷 / 01期
基金：
美国国家科学基金会;
关键词：
Compression behavior; Confined UHPC; Lateral dilation; Rectilinear ties; Prediction models; STRESS-STRAIN MODEL; COLUMNS; DUCTILITY;
D O I：
10.1007/s43452-021-00352-x
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To explore the compression behavior of ultra-high-performance concrete (UHPC) confined with rectilinear ties, sixty specimens were tested under axial compression. The investigated parameters included the compressive strength of UHPC in the range of 84.72-155.45 MPa, the volumetric ratio of rectilinear ties in the range of 0.9-2.0%, and the yield strength of rectilinear ties in the range of 873-1215 MPa. The failure modes of specimens were the formation of an inclined shear failure plane. The axial stress-axial strain curves and the axial stress-lateral strain curves of confined UHPC were analyzed. Besides, the effects of investigated parameters on the load-bearing capacity and ductility of confined UHPC were analyzed. Moreover, the prediction models for the lateral strain of rectilinear ties at peak stress, load-capacity and ductility of confined UHPC were developed.
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收藏
页数：16
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