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?

　　對(duì)于不影響橋梁結(jié)構(gòu)的裂縫，一般采用以下三種方法。該方法適用于窄縫，用于恢復(fù)構(gòu)件的表面美觀和正向耐久性。

　　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。當(dāng)裂縫較寬時(shí)，混凝土表面可沿裂縫鑿成v形或u形槽，用樹脂砂漿數(shù)據(jù)填充，也可采用水泥砂漿或?yàn)r青數(shù)據(jù)。注射方法。當(dāng)裂縫寬度較小時(shí)，裂縫較深時(shí)，可采用修補(bǔ)方法將修補(bǔ)信息注入混凝土內(nèi)部。道裂縫設(shè)有注射管，其余部位采用表面處理方法密封，數(shù)據(jù)注入采用低粘度環(huán)氧樹脂，修復(fù)采用電動(dòng)泵或手動(dòng)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.

　　如果裂縫影響了結(jié)構(gòu)的怎么辦?也就是圍繞一套加固方法。根據(jù)周圍標(biāo)準(zhǔn)的允許，CRB551鋼網(wǎng)外包在結(jié)構(gòu)外側(cè)面的一個(gè)或多個(gè)側(cè)面，以增加加固和截面前向的承載能力;如裂縫嚴(yán)重，一側(cè)未出現(xiàn)裂縫或劈裂，應(yīng)在裂縫處切斷鋼筋保護(hù)層，增加一層CRB551鋼網(wǎng)。大型設(shè)備基礎(chǔ)一般采用加鋼板箍、增加環(huán)張強(qiáng)度的方法處理。

　　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.

　　也許把它插進(jìn)去。用改性的環(huán)氧樹脂和粘結(jié)劑將鋼板或型鋼粘結(jié)在構(gòu)件的混凝土裂縫表面，使鋼板或型鋼與混凝土連接在一起。粘結(jié)前對(duì)CRB551鋼網(wǎng)表面噴砂除銹，混凝土拉絲干凈單調(diào)，粘結(jié)層厚度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.