Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FRP (Fiber Reinforce Plastic) grid structure type embedded reinforcing method for concrete beam
An FRP grid structure type embedded reinforcing method for a concrete beam comprises the steps that surface treatment is conducted on a bottom plate of the concrete beam, the bottom plate of the concrete beam is longitudinally and transversely grooved to form lattice grooves, FRP grids are positioned in a layered mode and placed in the lattice grooves, a bonding medium is poured, and maintenance is conducted. Compared with a traditional reinforcing mode, the deformation of the bonding medium and the FRP grating is restrained, and the bonding performance among the FRP grating, the concrete beam bottom plate and the bonding medium is effectively improved. Besides, specially designed anchoring devices are arranged at nodes in the end area of the FRP grating, bonding between the FRP grating and the concrete beam is further enhanced, the damage mode of early debonding and bonding medium layering in a traditional FRP embedded reinforcing and FRP grating surface bonding reinforcing mode can be effectively restrained, and the effect of improving the strength of the concrete beam is achieved. And the high-strength performance of the FRP material can be fully utilized in reinforcement practice. According to the reinforcing method, the rigidity and the bearing capacity of the old concrete beam can be effectively improved, and the service life of the old concrete beam is prolonged.
一种混凝土梁的FRP格栅格构式嵌入加固方法，包括混凝土梁底板表层处理、混凝土梁底板纵、横向开槽形成格构槽、FRP格栅分层定位并放置在格构槽内、灌注粘结介质及养护。本发明与传统加固方式相比，约束了粘结介质和FRP格栅变形量，有效增加了FRP格栅、混凝土梁底板以及粘结介质之间的粘结性能。此外，通过在FRP格栅端部区域节点布设特殊设计的锚固装置，进一步增强了FRP格栅与混凝土梁之间的粘结，能够有效的抑制传统的FRP嵌入式加固以及FRP格栅表面粘贴加固方式早期脱粘及粘结介质分层的破坏模式，使得FRP材料高强性能在加固实践中的得以充分的利用。本发明提出的加固方法能够有效提升老旧混凝土梁的刚度和承载能力，延长老旧混凝土梁的服役寿命。
FRP (Fiber Reinforce Plastic) grid structure type embedded reinforcing method for concrete beam
An FRP grid structure type embedded reinforcing method for a concrete beam comprises the steps that surface treatment is conducted on a bottom plate of the concrete beam, the bottom plate of the concrete beam is longitudinally and transversely grooved to form lattice grooves, FRP grids are positioned in a layered mode and placed in the lattice grooves, a bonding medium is poured, and maintenance is conducted. Compared with a traditional reinforcing mode, the deformation of the bonding medium and the FRP grating is restrained, and the bonding performance among the FRP grating, the concrete beam bottom plate and the bonding medium is effectively improved. Besides, specially designed anchoring devices are arranged at nodes in the end area of the FRP grating, bonding between the FRP grating and the concrete beam is further enhanced, the damage mode of early debonding and bonding medium layering in a traditional FRP embedded reinforcing and FRP grating surface bonding reinforcing mode can be effectively restrained, and the effect of improving the strength of the concrete beam is achieved. And the high-strength performance of the FRP material can be fully utilized in reinforcement practice. According to the reinforcing method, the rigidity and the bearing capacity of the old concrete beam can be effectively improved, and the service life of the old concrete beam is prolonged.
一种混凝土梁的FRP格栅格构式嵌入加固方法，包括混凝土梁底板表层处理、混凝土梁底板纵、横向开槽形成格构槽、FRP格栅分层定位并放置在格构槽内、灌注粘结介质及养护。本发明与传统加固方式相比，约束了粘结介质和FRP格栅变形量，有效增加了FRP格栅、混凝土梁底板以及粘结介质之间的粘结性能。此外，通过在FRP格栅端部区域节点布设特殊设计的锚固装置，进一步增强了FRP格栅与混凝土梁之间的粘结，能够有效的抑制传统的FRP嵌入式加固以及FRP格栅表面粘贴加固方式早期脱粘及粘结介质分层的破坏模式，使得FRP材料高强性能在加固实践中的得以充分的利用。本发明提出的加固方法能够有效提升老旧混凝土梁的刚度和承载能力，延长老旧混凝土梁的服役寿命。
FRP (Fiber Reinforce Plastic) grid structure type embedded reinforcing method for concrete beam
混凝土梁的FRP格栅格构式嵌入加固方法
SUN YAMIN (Autor:in) / WANG XIANPEI (Autor:in) / REN XIANG (Autor:in) / SONG FEI (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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