Experimental study on mechanical properties and the horizontal shear hysteresis constitutive model of high damping rubber isolation bearings with shear tenon

被引：0

作者：

Li, Yong ^{[1
,2
]}

Zhou, Ziming ^{[1
]}

Han, Qiang ^{[2
]}

Xu, Weibing ^{[2
]}

机构：

[1] Shijiazhuang Tiedao Univ, Key Lab Rd & Railway Engn Safety Control, Shijiazhuang 050043, Peoples R China

[2] Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China

来源：

ENGINEERING STRUCTURES | 2025年 / 326卷

基金：

中国国家自然科学基金;

关键词：

HDR(II) bearings; Shear tenon; Limit shear test; Stiffness degradation; Horizontal shear hysteretic constitutive model; BEHAVIOR; PERFORMANCE; BRIDGES;

D O I：

10.1016/j.engstruct.2024.119501

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

To study the complex and highly nonlinear mechanical properties of HDR(II) bearings with shear tenon, six fullscale HDR(II) bearings with shear tenon and one HDR(I) bearing without shear tenon were designed and fabricated for tests. The vertical compression performance test, the shear performance tests under different shear strain, compressive stress and reciprocating loading times, and the ultimate shear performance test were carried out. The test results show that the shear tenon improves the vertical and lateral stiffness of HDR(II) bearing to a certain extent, and the elastic hysteresis of HDR(II) bearing is more obvious than that of HDR(I) bearing. The shear damage process of the HDR(II) bearings were simulated and verified by finite element software. A 13parameter horizontal shear hysteretic constitutive (HSHC) model is proposed. The model can accurately simulate the mechanical behavior of HDR(II) bearings under 0.5-3 times the design shear strain, such as hyperelastic deformation, contribution of shear tenon protected by rubber, hysteretic energy dissipation and stiffness degradation under multiple loading, and the simulation results show a high degree of consistency with the test results.

引用

页数：17

共 41 条

[1]

[Anonymous], 2007, Rubber BearingsPart 1: Seismic-Protection Isolators test Methods

[2]

[Anonymous], 2012, JTT842-2012

[3] Effect of lead rubber bearing on seismic performance of steel box girder bridge [J].

Baig, Mirza Aamir ;

Ansari, Md Imteyaz ;

Islam, Nazrul ;

Umair, Mohammad .

MATERIALS TODAY-PROCEEDINGS, 2022, 64 :468-480

[4] Seismic vulnerability assessment of wall pier supported highway bridges using nonlinear pushover analyses [J].

Bignell, JL ;

LaFave, JM ;

Hawkins, NM .

ENGINEERING STRUCTURES, 2005, 27 (14) :2044-2063

[5] Modeling of Hyper-Viscoelastic Properties of High-Damping Rubber Materials during the Cyclic Tension and Compression Process in the Vertical Direction [J].

Chen, Bowen ;

Dai, Junwu ;

Shao, Zhipeng .

POLYMERS, 2022, 14 (24)

[6] Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review [J].

Chen, Bowen ;

Dai, Junwu ;

Song, Tingsu ;

Guan, Qingsong .

POLYMERS, 2022, 14 (12)

[7] Response of a High Damping Rubber Bearing to Multiaxial Excitation [J].

Chen, Michelle C. ;

Restrepo, Jose, I ;

Benzoni, Gianmario .

JOURNAL OF TESTING AND EVALUATION, 2021, 49 (02) :1153-1172

[8] A numerical model for non-linear shear behavior of high damping rubber bearings [J].

Gallardo, Jose A. ;

de la Llera, Juan C. ;

Restrepo, Jose I. ;

Chen, Michelle .

ENGINEERING STRUCTURES, 2023, 289

[9] Bidirectional modelling of high-damping rubber bearings [J].

Grant, DN ;

Fenves, GL ;

Whittaker, AS .

JOURNAL OF EARTHQUAKE ENGINEERING, 2004, 8 :161-185

[10] An Experimental Study on the Mechanical Properties of a High Damping Rubber Bearing with Low Shape Factor [J].

Gu, Zhenyuan ;

Lei, Yahui ;

Qian, Wangping ;

Xiang, Ziru ;

Hao, Fangzheng ;

Wang, Yi .

APPLIED SCIENCES-BASEL, 2021, 11 (21)

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