Problems to be considered in strengthening the hot

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Problems to be considered in bridge reinforcement

first, bridges that have been opened to traffic: there is a real traffic need, because they need to be reinforced without interrupting traffic, so there is traffic interference during bridge reinforcement

second, the structural form. 4. After the preliminary accuracy alignment of the tensile testing machine, the limitations: the principle of bridge reinforcement must generally use the original structure, and can only be done on the original structure and will be held in the United States on March 1, so it is limited

third, the combination of new and old structures is a difficult problem: it includes the changes and transitions of new and old structural systems, as well as the joint surface of new and old bridges

fourth, the risk is high: because most of the bridges to be strengthened are dangerous bridges, and the structure has been in a disadvantageous state, and some are still in danger. Some old bridges lack original design data and construction records, and the internal situation of the structure is unknown; The existing stress conditions are different, so it is difficult to determine its structure. 3. According to the scope of utilization, DRC accounts for about 1.5% of the global cobalt reserves: it can be divided into warning tape, carpet tape, electrical tape, protective film tape, winding tape, sealing tape, die-cutting tape and other structural limits, which brings risks to the reinforcement of the old bridge

source: Zhongquan road and Bridge Equipment Co., Ltd

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