Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Graded energy consumption type transverse retaining structure
The invention discloses a graded energy consumption type transverse retaining structure, and relates to the technical field of bridge earthquake prevention and disaster reduction. Comprising a metal rubber device and a steel plate combined structure, the metal rubber device is formed by winding austenitic stainless steel wires into a spring coil, stretching, weaving and stamping in a die, and an angle steel limiting plate is arranged in the device. The steel plate combined structure is formed by splicing a bottom plate, an outer longitudinal baffle, an outer transverse baffle and a longitudinal I-shaped stiffening beam. And a telescopic gap is reserved between the supporting and retaining structure and the beam body, so that normal thermal expansion and cold contraction deformation of the bridge floor is not interfered. Under the action of an earthquake, a beam body generates large transverse displacement to apply pressure to the metal rubber energy dissipation device, friction and plastic deformation between metal wires in compression provide damping to dissipate earthquake energy, and when an extra-large earthquake occurs, after the metal rubber energy dissipation device reaches the bearing capacity limit and loses the energy dissipation capacity, secondary energy dissipation is achieved through steel plate combined structure metal yield, and the energy dissipation effect is achieved. The beam body is prevented from falling off to the maximum extent, and the anti-seismic targets of multi-fortification and graded energy consumption are achieved. The supporting and retaining structure has the advantages of being simple in structural form, high in damping and energy dissipation performance, light in weight, easy to manufacture, capable of being replaced after an earthquake and the like, has wide application prospects, and is particularly suitable for bridge anti-beam-falling structure design in high-intensity areas.
本发明公开一种分级耗能式横向支挡结构，涉及桥梁防震减灾技术领域。包括金属橡胶装置和钢板组合结构，其中金属橡胶装置是由奥氏体不锈钢丝经绕丝做成弹簧卷、拉伸、编织、在模具中冲压而成，装置中设有角钢限位板。钢板组合结构是由底板、外纵向挡板、外横向挡板及纵向工型加劲梁拼装而成。支挡结构与梁体间留有伸缩缝隙，使桥面的正常热胀冷缩变形不受干涉。在地震作用下，梁体发生较大横向位移施压于金属橡胶耗能装置，压缩中金属丝之间摩擦及其塑性变形提供阻尼耗散地震能量，当遭遇特大地震时，金属橡胶耗能装置达到承载力极限，丧失耗能能力后，通过钢板组合结构金属屈服二次耗能，最大程度地避免梁体脱落，达到多道设防和分级耗能的抗震目标。该支挡结构具有结构形式简单、减震耗能性能强、质量轻、易制作、震后可更换等优点，使其拥有广泛的应用前景，尤其适用于高烈度地区桥梁防落梁构造设计。
Graded energy consumption type transverse retaining structure
The invention discloses a graded energy consumption type transverse retaining structure, and relates to the technical field of bridge earthquake prevention and disaster reduction. Comprising a metal rubber device and a steel plate combined structure, the metal rubber device is formed by winding austenitic stainless steel wires into a spring coil, stretching, weaving and stamping in a die, and an angle steel limiting plate is arranged in the device. The steel plate combined structure is formed by splicing a bottom plate, an outer longitudinal baffle, an outer transverse baffle and a longitudinal I-shaped stiffening beam. And a telescopic gap is reserved between the supporting and retaining structure and the beam body, so that normal thermal expansion and cold contraction deformation of the bridge floor is not interfered. Under the action of an earthquake, a beam body generates large transverse displacement to apply pressure to the metal rubber energy dissipation device, friction and plastic deformation between metal wires in compression provide damping to dissipate earthquake energy, and when an extra-large earthquake occurs, after the metal rubber energy dissipation device reaches the bearing capacity limit and loses the energy dissipation capacity, secondary energy dissipation is achieved through steel plate combined structure metal yield, and the energy dissipation effect is achieved. The beam body is prevented from falling off to the maximum extent, and the anti-seismic targets of multi-fortification and graded energy consumption are achieved. The supporting and retaining structure has the advantages of being simple in structural form, high in damping and energy dissipation performance, light in weight, easy to manufacture, capable of being replaced after an earthquake and the like, has wide application prospects, and is particularly suitable for bridge anti-beam-falling structure design in high-intensity areas.
本发明公开一种分级耗能式横向支挡结构，涉及桥梁防震减灾技术领域。包括金属橡胶装置和钢板组合结构，其中金属橡胶装置是由奥氏体不锈钢丝经绕丝做成弹簧卷、拉伸、编织、在模具中冲压而成，装置中设有角钢限位板。钢板组合结构是由底板、外纵向挡板、外横向挡板及纵向工型加劲梁拼装而成。支挡结构与梁体间留有伸缩缝隙，使桥面的正常热胀冷缩变形不受干涉。在地震作用下，梁体发生较大横向位移施压于金属橡胶耗能装置，压缩中金属丝之间摩擦及其塑性变形提供阻尼耗散地震能量，当遭遇特大地震时，金属橡胶耗能装置达到承载力极限，丧失耗能能力后，通过钢板组合结构金属屈服二次耗能，最大程度地避免梁体脱落，达到多道设防和分级耗能的抗震目标。该支挡结构具有结构形式简单、减震耗能性能强、质量轻、易制作、震后可更换等优点，使其拥有广泛的应用前景，尤其适用于高烈度地区桥梁防落梁构造设计。
Graded energy consumption type transverse retaining structure
一种分级耗能式横向支挡结构
XIA XIUSHEN (Autor:in) / ZHANG YONGQIANG (Autor:in) / ZHONG YAWEI (Autor:in) / DAI SHENGYONG (Autor:in)
05.05.2023
Patent
Elektronische Ressource
Chinesisch
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