Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestress shear-resistant reinforcing method and shear-resistant bearing capacity calculation method for reinforced concrete beam
The invention discloses a prestressed shear reinforcement method and a shear bearing capacity calculation method of a reinforced concrete beam. The shear-resistant reinforcement method comprises the steps of chiseling and grooving, FRP rib tensioning and glue filling and TRC reinforcement. The shear bearing capacity calculation method comprises the following steps: determining the distance and the diameter of FRP bars on the side of a reinforced concrete beam and stirrups in the beam after reinforcement, the number of TRC layers and the specification of a fiber woven mesh, and determining the geometric dimension of a component; determining mechanical parameters of the carbon fiber bars, the stirrups, the fiber woven meshes and the reinforced concrete beams; and a shear bearing capacity calculation model of the reinforced concrete beam after TRC composite embedded prestress FRP shear reinforcement is established, and the shear bearing capacity of the reinforced concrete beam after reinforcement is calculated. According to the shear-resistant reinforcing method, the reinforcing effect is better, the quality is higher, the bearing capacity and the shear-resistant bearing capacity of the reinforcing beam can be effectively enhanced, and the reinforcing and repairing requirements are met; according to the shear bearing capacity calculation method, the shear bearing capacity of the reinforced concrete beam can be accurately calculated, and a basis can be provided for engineering design and construction.
本发明公开一种钢筋混凝土梁的预应力抗剪加固方法及抗剪承载力计算方法。抗剪加固方法包括有凿毛开槽、FRP筋张拉和填胶以及TRC加固。抗剪承载力计算方法包括确定加固后的钢筋混凝土梁侧FRP筋及梁内箍筋的间距和直径以及TRC层数和纤维编织网规格，确定构件几何尺寸；确定碳纤维筋、箍筋、纤维编织网、钢筋混凝土梁的力学参数；建立TRC复合嵌入式预应力FRP抗剪加固后钢筋混凝土梁抗剪承载力计算模型，计算加固后混凝土梁的抗剪承载力。本发明的抗剪加固方法加固效果更好，质量更高，能够有效增强加固梁的承载力和抗剪承载力，满足加固修复的要求；本发明的抗剪承载力计算方法，能够准确计算钢筋混凝土梁的抗剪承载力，能为工程设计及施工提供依据。
Prestress shear-resistant reinforcing method and shear-resistant bearing capacity calculation method for reinforced concrete beam
The invention discloses a prestressed shear reinforcement method and a shear bearing capacity calculation method of a reinforced concrete beam. The shear-resistant reinforcement method comprises the steps of chiseling and grooving, FRP rib tensioning and glue filling and TRC reinforcement. The shear bearing capacity calculation method comprises the following steps: determining the distance and the diameter of FRP bars on the side of a reinforced concrete beam and stirrups in the beam after reinforcement, the number of TRC layers and the specification of a fiber woven mesh, and determining the geometric dimension of a component; determining mechanical parameters of the carbon fiber bars, the stirrups, the fiber woven meshes and the reinforced concrete beams; and a shear bearing capacity calculation model of the reinforced concrete beam after TRC composite embedded prestress FRP shear reinforcement is established, and the shear bearing capacity of the reinforced concrete beam after reinforcement is calculated. According to the shear-resistant reinforcing method, the reinforcing effect is better, the quality is higher, the bearing capacity and the shear-resistant bearing capacity of the reinforcing beam can be effectively enhanced, and the reinforcing and repairing requirements are met; according to the shear bearing capacity calculation method, the shear bearing capacity of the reinforced concrete beam can be accurately calculated, and a basis can be provided for engineering design and construction.
本发明公开一种钢筋混凝土梁的预应力抗剪加固方法及抗剪承载力计算方法。抗剪加固方法包括有凿毛开槽、FRP筋张拉和填胶以及TRC加固。抗剪承载力计算方法包括确定加固后的钢筋混凝土梁侧FRP筋及梁内箍筋的间距和直径以及TRC层数和纤维编织网规格，确定构件几何尺寸；确定碳纤维筋、箍筋、纤维编织网、钢筋混凝土梁的力学参数；建立TRC复合嵌入式预应力FRP抗剪加固后钢筋混凝土梁抗剪承载力计算模型，计算加固后混凝土梁的抗剪承载力。本发明的抗剪加固方法加固效果更好，质量更高，能够有效增强加固梁的承载力和抗剪承载力，满足加固修复的要求；本发明的抗剪承载力计算方法，能够准确计算钢筋混凝土梁的抗剪承载力，能为工程设计及施工提供依据。
Prestress shear-resistant reinforcing method and shear-resistant bearing capacity calculation method for reinforced concrete beam
钢筋混凝土梁的预应力抗剪加固方法及抗剪承载力计算方法
LUO ZIQING (Autor:in) / NING JIEJUN (Autor:in) / LUO JUNHUI (Autor:in) / YANG YONGHUA (Autor:in) / YIN SHIPING (Autor:in) / HAO TIANZHI (Autor:in) / CHEN QIFENG (Autor:in) / LIU ZIRUI (Autor:in)
11.08.2023
Patent
Elektronische Ressource
Chinesisch
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