Bridge can be said to be a connected lifeline. If the bridge cracks are very dangerous, it is related to the safety of vehicles and personnel. How to deal with bridge cracks?

　　对于不影响桥梁结构的裂缝，一般采用以下三种方法。该方法适用于窄缝，用于恢复构件的表面美观和正向耐久性。

　　For the cracks that do not affect the bridge structure, the following three methods are generally used. This method is suitable for narrow joints and is used to restore the appearance and positive durability of components.

　　填充方法。当裂缝较宽时，混凝土表面可沿裂缝凿成v形或u形槽，用树脂砂浆数据填充，也可采用水泥砂浆或沥青数据。注射方法。当裂缝宽度较小时，裂缝较深时，可采用修补方法将修补信息注入混凝土内部。道裂缝设有注射管，其余部位采用表面处理方法密封，数据注入采用低粘度环氧树脂，修复采用电动泵或手动泵。

　　Fill method. When the cracks are wide, the concrete surface can be chiseled into V-shaped or U-shaped grooves along the cracks, filled with resin mortar data, or cement mortar or asphalt data. Injection method. When the crack width is small and the crack is deep, the repair method can be used to inject the repair information into the concrete. The first crack is provided with injection pipe, the rest parts are sealed by surface treatment, the data injection is made of low viscosity epoxy resin, and the repair is made by electric pump or manual pump.

　　如果裂缝影响了结构的怎么办?也就是围绕一套加固方法。根据周围标准的允许，CRB551钢网外包在结构外侧面的一个或多个侧面，以增加加固和截面前向的承载能力;如裂缝严重，一侧未出现裂缝或劈裂，应在裂缝处切断钢筋保护层，增加一层CRB551钢网。大型设备基础一般采用加钢板箍、增加环张强度的方法处理。

　　What if the cracks affect the safety of the structure? That is, around a set of reinforcement methods. According to the permission of surrounding standards, crb551 steel mesh is wrapped on one or more sides of the external side of the structure to increase the bearing capacity of reinforcement and section forward; if the crack is serious, and there is no crack or split on one side, the protective layer of reinforcement shall be cut off at the crack and a layer of crb551 steel mesh shall be added. The foundation of large equipment is generally treated by adding steel hoop and increasing ring tensile strength.

　　也许把它插进去。用改性的环氧树脂和粘结剂将钢板或型钢粘结在构件的混凝土裂缝表面，使钢板或型钢与混凝土连接在一起。粘结前对CRB551钢网表面喷砂除锈，混凝土拉丝干净单调，粘结层厚度1~ 4mm。

　　Maybe insert it. The steel plate or section steel is bonded to the concrete crack surface of the component by the modified epoxy resin and binder, so that the steel plate or section steel is connected with the concrete. Before bonding, the surface of crb551 steel mesh shall be derusted by sand blasting, the concrete drawing shall be clean and monotonous, and the thickness of bonding layer shall be 1 ~ 4mm.