In what situation is the steel structure broken easily

Steel structure is also damaged, we have to immediately find the immediate solution to the problem, steel structure network structure of the main factors are damaged: 

1, by the load changes, extended service, norms and procedures to change the structure of the bearing capacity is insufficient; 

2、Due to a variety of accidents caused by deformation, distortion, disability, depression, resulting in weakened component sections, bar warping, connecting cracks, etc .; 

3, the temperature caused by the deformation of the components or connections deformation, cracking and warping; 

4, Of the erosion and corrosion caused by electrochemical corrosion caused by weakening the steel structure components; 

5, the other including the design, production, construction errors and service during the illegal use and operation.

There are three main technical measures to strengthen the steel structure:

Under what circumstances is the steel structure most vulnerable to damage?

1, cross-section reinforcement method: in the local or along the full length of steel components to strengthen, even as a whole to make the common force;

2, change the calculation diagram: additional support, adjust the load distribution, reduce the internal force level, the statically indeterminate bearing structure forcing displacement, reduce the stress peak;

3, the prestressed cable method: the use of high-strength cable reinforcement structure to enhance the weak link or improve the overall structure of the bearing capacity, stiffness and stability.