| 公路桥梁用三元乙丙橡胶板式支座力学性能研究 |
| Study on Mechanical Properties of EPDM Laminated Bearings for Highway Bridges |
| 投稿时间：2021-07-06 修订日期：2021-07-06 |
| DOI：10.12136/j.issn.1000-890X.2021.12.0928 |
| 中文关键词: 公路桥梁 板式支座 三元乙丙橡胶 力学性能 有限元模拟 |
| 英文关键词: highway bridge laminated bearing EPDM mechanical performance finite element simulation |
| 基金项目:河南工业大学校博士基金资助项目（2019BS040） |
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| 中文摘要: |
| 依据现行设计规范JT/T 4—2019《公路桥梁板式橡胶支座》，设计并试制了三元乙丙橡胶（EPDM）板式支座，并结合试验与数值模拟技术，研究该支座的弹性模量和在最不利工况组合下的力学行为特征。结果表明：EPDM板式支座的弹性模量满足规范要求；在最不利工况下板式支座的橡胶层与钢板之间未出现开脱现象，满足工程设计要求。 |
| 英文摘要: |
| A new kind of ethylene propylene diene rubber（EPDM） laminated bearing was designed
and prepared in according to the standard of laminated bearing for highway bridge（JT/T 4—2019）．The
elastic modulus and mechanical property of this new bearing under the harshest conditions were studied
by experimental and numerical simulation methods．The results showed that the elastic modulus of EPDM
laminated bearing met the requirements of the standard．Meanwhile，under the harshest testing conditions，
there was no disconnection between the rubber layer and the steel plate layer，which met the engineering
design requirements． |
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