The fiber hinge model for unbonded post-tensioned beam-column connections

被引：0

作者：

Qi, Hu ^{[1
,2
]}

Shen, Yelei ^{[3
]}

Guo, Haishan ^{[4
]}

Zhang, Wenxuan ^{[1
]}

Lu, Zheng ^{[3
,5
]}

机构：

[1] Inst Disaster Prevent, Sch Civil Engn, Sanhe, Peoples R China

[2] China Earthquake Adm, Key Lab Bldg Collapse Mech & Disaster Prevent, Sanhe, Peoples R China

[3] Tongji Univ, Dept Disaster Mitigat Struct, Shanghai, Peoples R China

[4] China Construct Sci & Technol Co Ltd, Beijing, Peoples R China

[5] Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Shanghai 200092, Peoples R China

来源：

STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS | 2024年 / 33卷 / 17期

关键词：

fiber hinge model; nonlinear analysis; OpenSees; precast concrete frame; unbonded post-tensioned beam-column connections; CONCRETE; SUBJECT;

D O I：

10.1002/tal.2176

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The precast concrete frame with unbonded post-tensioned beam-column connections (UPBC) has been emphasized in recent years for it is capable of sustaining a design-basis earthquake with minor damage. The fiber hinge model (FHM), which is a simple and effective approach, is proposed in this paper for the simulation of UPBC. In the FHM, the mild steels and prestressed tendons crossing the interface are integrated into one element. The mechanism and behavior of the FHM are presented in this paper. The proposed model, which is developed in OpenSees, has been validated by tests, and the FHM is able to accurately describe the shift of compressive center induced by the opening of the interface between the precast beam and column, as well as "beam elongation effects."

引用

页数：19

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