Economic, reasonable and reliable reinforcement measures are selected for steel structure engineering

The reinforcement design of steel works should fully consider the stress state and the characteristics of the structure after reinforcement. On the basis of ensuring the whole structure is reasonable and reliable, the strengthening measures which are economical and convenient for construction are selected. Under the existing construction conditions, new and old structures, new materials connection technology, as far as possible to consider the comprehensive technical indicators. In addition, effective measures must be taken to reduce the adverse impact on the surrounding environment and adjacent buildings and shorten the construction period in the optimization design of reinforcement scheme of steel structure workshop. Make full use of the existing building structure. In order to avoid damage to the original structure, the bearing capacity of the original structure should be used as much as possible. Reliability analysis and testing are carried out for load-bearing components of the plant itself to fully understand their existing load-bearing capacity, and then more original components are retained according to the test report. Due to the large amount of disassembly, the steel structure workshop is easy to cause serious damage to the components and difficult to connect the old and new structures, which affects the reinforcement effect. Therefore, steel structure workshop in the late use of a great potential safety hazards.

In the reinforcement construction of steel structure workshop, it is necessary to strengthen the actual structure inspection, accurately grasp the actual situation and damage of the existing structure, and timely eliminate the hidden danger of safety. Adopt quality control measures such as steel structure, welding, installation, bolt connection, anti-corrosion and fireproof coating and stamping steel plate installation. When strengthening, check the quality of the structural parts. If defects are found, handle them in a timely manner to ensure that the hardening scheme is reliable and effective. Many weight on bit steel joints must be inspected for quality before they can be put into use.

In addition, when reinforcing the steel structure workshop, the construction load and fatigue requirements of the steel structure workshop should be clarified according to the relevant quality control technical standards and quality inspection system to ensure the safety and stability of the whole workshop. When installing mechanical equipment, measure and test the equipment to ensure the accuracy of operation. Strengthen the steel structure with prestressed carbon fiber board is a new type of reinforcement method, it can not only save uninstall workload, reduce outage losses, but also make the passive to active reinforcement, give full play to the strength of the fiber material, improve the bearing capacity of structure, and to save the cost, strengthening is the modern field reinforcement is very practical method. In a large span steel structure reinforcement project, the prestressed reinforcement technique is well applied when the pulling force of 2cm carbon plate exceeds 10T.