Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestressed elastomer expansion joint and forming method
The invention discloses a prestressed elastomer expansion joint and a forming method, the expansion joint comprises an elastomer arranged between two end faces, bottom coating layers, core bags and a bottom lining, the two end faces are coated with the bottom coating layers, the bottom lining is installed between the bottom coating layers, the elastomer surrounding the periphery of at least one core bag is arranged above the bottom lining, a surface coating layer is arranged on the top surface of the elastomer, and the surface coating layer is arranged on the surface of the elastomer. The core bag is injected and pressed to generate expansion force, so that the elastic body generates prestress on the end faces on the two sides. A reaction principle is adopted, the core capsule is introduced into the elastomer expansion joint and prestress is applied, so that the core capsule generates certain reaction force to an interface, partial interface stress generated when a bridge stretches out and draws back is offset, the reliability of bonding interface connection is improved, the damage risk of the elastomer expansion joint is reduced, and the service life of the elastomer expansion joint is prolonged.
一种预应力弹性体伸缩缝及成型方法，伸缩缝包括设置在两个端面之间的弹性体、底涂料层、芯囊和底衬，两个端面上涂有底涂料层，在底涂料层之间安装有底衬，底衬上方设有包围在至少一个芯囊四周的弹性体，弹性体的顶面设有面涂料层，对芯囊注压产生胀紧力，使弹性体对两侧的端面产生预应力。本发明采用反作用原理，在弹性体伸缩缝内部引入芯囊并施加预应力，使其向界面产生一定的反作用力，抵销桥梁伸缩时产生的部分界面应力，提高粘接界面联接的可靠性，降低弹性体伸缩缝的破坏风险，延长弹性体伸缩缝的使用寿命。
Prestressed elastomer expansion joint and forming method
The invention discloses a prestressed elastomer expansion joint and a forming method, the expansion joint comprises an elastomer arranged between two end faces, bottom coating layers, core bags and a bottom lining, the two end faces are coated with the bottom coating layers, the bottom lining is installed between the bottom coating layers, the elastomer surrounding the periphery of at least one core bag is arranged above the bottom lining, a surface coating layer is arranged on the top surface of the elastomer, and the surface coating layer is arranged on the surface of the elastomer. The core bag is injected and pressed to generate expansion force, so that the elastic body generates prestress on the end faces on the two sides. A reaction principle is adopted, the core capsule is introduced into the elastomer expansion joint and prestress is applied, so that the core capsule generates certain reaction force to an interface, partial interface stress generated when a bridge stretches out and draws back is offset, the reliability of bonding interface connection is improved, the damage risk of the elastomer expansion joint is reduced, and the service life of the elastomer expansion joint is prolonged.
一种预应力弹性体伸缩缝及成型方法，伸缩缝包括设置在两个端面之间的弹性体、底涂料层、芯囊和底衬，两个端面上涂有底涂料层，在底涂料层之间安装有底衬，底衬上方设有包围在至少一个芯囊四周的弹性体，弹性体的顶面设有面涂料层，对芯囊注压产生胀紧力，使弹性体对两侧的端面产生预应力。本发明采用反作用原理，在弹性体伸缩缝内部引入芯囊并施加预应力，使其向界面产生一定的反作用力，抵销桥梁伸缩时产生的部分界面应力，提高粘接界面联接的可靠性，降低弹性体伸缩缝的破坏风险，延长弹性体伸缩缝的使用寿命。
Prestressed elastomer expansion joint and forming method
一种预应力弹性体伸缩缝及成型方法
JIANG WENYING (Autor:in) / GU HAILONG (Autor:in) / CAO WENGKAI (Autor:in) / SONG JIANPING (Autor:in) / WANG JIANBIN (Autor:in) / JIA LIZHI (Autor:in) / TONG YANFENG (Autor:in) / ZHANG XIAOWU (Autor:in) / WANG FEI (Autor:in) / LYU DONGXING (Autor:in)
19.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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