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A platform for research: civil engineering, architecture and urbanism
Connecting method of prefabricated box girder and transition layer and prefabricated box girder structure
The invention relates to a method for connecting a prefabricated box girder and a transition layer. The method comprises the following steps: (1) binding box girder main body steel bars; (2) after binding of the box girder main body reinforcing steel bars is completed, arranging a plurality of hook reinforcing steel bars at the tops of the box girder main body reinforcing steel bars, and the tops of the hook reinforcing steel bars penetrate through the box girder top plate and extend into the transition layer; and (3) installing a formwork, pouring concrete, and after pouring is completed and initial setting is conducted, roughening the mortar building surface so as to increase the friction force between the mortar building surface and the transition layer. According to the method, galling treatment is conducted on the surface of the box girder top plate, meanwhile, the hook steel bars are arranged at the tops of the box girder body steel bars, the tops of the hook steel bars penetrate through the box girder top plate and penetrate into the transition layer, the friction force between the box girder top plate and the transition layer is increased, the shear strength of the transition layer is enhanced, and the requirement that heavy-duty vehicles run on the surface layer of the transition layer can be met. The use durability of the pavement structure layer is improved. In addition, the invention further provides a prefabricated box girder structure.
本发明涉及一种预制箱梁与过渡层的连接方法，包括如下步骤：(1)绑扎箱梁主体钢筋；(2)箱梁主体钢筋绑扎完成后，在箱梁主体钢筋顶部设置多个弯钩钢筋，多个弯钩钢筋的顶部穿过箱梁顶板并深入到过渡层中；(3)安装模板，浇筑混凝土，浇筑完成初凝后，浆砌表面拉毛，以增加其与过渡层的摩擦力。此方法通过在箱梁顶板的表面进行拉毛处理，同时，箱梁主体钢筋顶部设置多个弯钩钢筋，多个弯钩钢筋的顶部穿过箱梁顶板并深入到过渡层中，不仅增大了其与过渡层的摩擦力，而且增强其抗剪强度，能够满足重载车辆在其面层行驶，增加路面结构层使用的耐久性。此外，本申请还提供了一种预制箱梁结构。
Connecting method of prefabricated box girder and transition layer and prefabricated box girder structure
The invention relates to a method for connecting a prefabricated box girder and a transition layer. The method comprises the following steps: (1) binding box girder main body steel bars; (2) after binding of the box girder main body reinforcing steel bars is completed, arranging a plurality of hook reinforcing steel bars at the tops of the box girder main body reinforcing steel bars, and the tops of the hook reinforcing steel bars penetrate through the box girder top plate and extend into the transition layer; and (3) installing a formwork, pouring concrete, and after pouring is completed and initial setting is conducted, roughening the mortar building surface so as to increase the friction force between the mortar building surface and the transition layer. According to the method, galling treatment is conducted on the surface of the box girder top plate, meanwhile, the hook steel bars are arranged at the tops of the box girder body steel bars, the tops of the hook steel bars penetrate through the box girder top plate and penetrate into the transition layer, the friction force between the box girder top plate and the transition layer is increased, the shear strength of the transition layer is enhanced, and the requirement that heavy-duty vehicles run on the surface layer of the transition layer can be met. The use durability of the pavement structure layer is improved. In addition, the invention further provides a prefabricated box girder structure.
本发明涉及一种预制箱梁与过渡层的连接方法，包括如下步骤：(1)绑扎箱梁主体钢筋；(2)箱梁主体钢筋绑扎完成后，在箱梁主体钢筋顶部设置多个弯钩钢筋，多个弯钩钢筋的顶部穿过箱梁顶板并深入到过渡层中；(3)安装模板，浇筑混凝土，浇筑完成初凝后，浆砌表面拉毛，以增加其与过渡层的摩擦力。此方法通过在箱梁顶板的表面进行拉毛处理，同时，箱梁主体钢筋顶部设置多个弯钩钢筋，多个弯钩钢筋的顶部穿过箱梁顶板并深入到过渡层中，不仅增大了其与过渡层的摩擦力，而且增强其抗剪强度，能够满足重载车辆在其面层行驶，增加路面结构层使用的耐久性。此外，本申请还提供了一种预制箱梁结构。
Connecting method of prefabricated box girder and transition layer and prefabricated box girder structure
预制箱梁与过渡层的连接方法及预制箱梁结构
TIAN LIANMIN (author) / QU KAI (author) / ZHU QINGQING (author) / TANG YING (author) / ZHU DANDAN (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
PREFABRICATED TRUSS GIRDER STRUCTURE AND CONSTRUCTION METHOD
| European Patent Office | 2024