A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Friction pendulum seismic mitigation and isolation support shear pin parameter design method
The invention discloses a friction pendulum seismic mitigation and isolation support shear pin parameter design method, and relates to the technical field of bridge seismic design, and the method comprises the steps: determining the internal force response of a seismic mitigation and isolation support shear pin in the shear direction under the action of a design earthquake through finite element simulation calculation; according to the internal force response of the seismic mitigation and isolation support shear pin under the action of the designed earthquake and the load proportion coefficient of the part, exceeding the frequent earthquake, of the designed earthquake, the theoretically required shear strength of the seismic mitigation and isolation support shear pin under the action of the frequent earthquake is determined; and according to the theoretically required shear strength of the shear pin of the seismic mitigation and isolation support under the action of the frequent earthquake and the frictional resistance of the support, determining the actually required shear strength of the shear pin of the seismic mitigation and isolation support after the frictional resistance of the support is considered. The problems that in the prior art, the shear strength of the shear pin of the friction pendulum seismic mitigation and isolation support is usually designed according to experience, the design value of the shear strength of the shear pin of the friction pendulum seismic mitigation and isolation support is not accurate enough, the shear strength is too large or too small, and safety risks are caused are solved.
本发明公开了一种摩擦摆减隔震支座剪力销参数设计方法，涉及桥梁抗震设计技术领域，该方法包括：通过有限元仿真计算，确定减隔震支座剪力销在设计地震作用下受剪方向的内力响应；根据减隔震支座剪力销在设计地震作用下的内力响应和设计地震超出多遇地震部分的荷载占比系数，确定减隔震支座剪力销在常遇地震作用下的理论所需抗剪强度；根据减隔震支座剪力销在常遇地震作用下的理论所需抗剪强度，以及支座摩阻力，确定考虑支座摩阻力后减隔震支座剪力销的实际所需抗剪强度。解决了现有技术中通常根据经验设计摩擦摆减隔震支座剪力销抗剪强度，存在摩擦摆减隔震支座剪力销抗剪强度设计值不够精确，产生抗剪强度过大或过小引发安全风险的问题。
Friction pendulum seismic mitigation and isolation support shear pin parameter design method
The invention discloses a friction pendulum seismic mitigation and isolation support shear pin parameter design method, and relates to the technical field of bridge seismic design, and the method comprises the steps: determining the internal force response of a seismic mitigation and isolation support shear pin in the shear direction under the action of a design earthquake through finite element simulation calculation; according to the internal force response of the seismic mitigation and isolation support shear pin under the action of the designed earthquake and the load proportion coefficient of the part, exceeding the frequent earthquake, of the designed earthquake, the theoretically required shear strength of the seismic mitigation and isolation support shear pin under the action of the frequent earthquake is determined; and according to the theoretically required shear strength of the shear pin of the seismic mitigation and isolation support under the action of the frequent earthquake and the frictional resistance of the support, determining the actually required shear strength of the shear pin of the seismic mitigation and isolation support after the frictional resistance of the support is considered. The problems that in the prior art, the shear strength of the shear pin of the friction pendulum seismic mitigation and isolation support is usually designed according to experience, the design value of the shear strength of the shear pin of the friction pendulum seismic mitigation and isolation support is not accurate enough, the shear strength is too large or too small, and safety risks are caused are solved.
本发明公开了一种摩擦摆减隔震支座剪力销参数设计方法，涉及桥梁抗震设计技术领域，该方法包括：通过有限元仿真计算，确定减隔震支座剪力销在设计地震作用下受剪方向的内力响应；根据减隔震支座剪力销在设计地震作用下的内力响应和设计地震超出多遇地震部分的荷载占比系数，确定减隔震支座剪力销在常遇地震作用下的理论所需抗剪强度；根据减隔震支座剪力销在常遇地震作用下的理论所需抗剪强度，以及支座摩阻力，确定考虑支座摩阻力后减隔震支座剪力销的实际所需抗剪强度。解决了现有技术中通常根据经验设计摩擦摆减隔震支座剪力销抗剪强度，存在摩擦摆减隔震支座剪力销抗剪强度设计值不够精确，产生抗剪强度过大或过小引发安全风险的问题。
Friction pendulum seismic mitigation and isolation support shear pin parameter design method
一种摩擦摆减隔震支座剪力销参数设计方法
WANG FAN (author) / RUAN HUAISHENG (author) / QU AIPING (author) / WANG DONGHUI (author) / WANG ZHONGBIN (author) / ZHAN HAO (author)
2023-11-28
Patent
Electronic Resource
Chinese
Friction pendulum seismic mitigation and isolation support structure
| European Patent Office | 2024
Mechanical locking friction pendulum seismic mitigation and isolation support
| European Patent Office | 2021
High-performance friction pendulum seismic mitigation and isolation support
| European Patent Office | 2023
Friction pendulum combined three-dimensional seismic mitigation and isolation support
| European Patent Office | 2023
Orthotropic friction pendulum seismic mitigation and isolation device
| European Patent Office | 2024