What situations make the steel structure vulnerable to be damaged

Steel is also damaged, we have to find an immediate solution for real problems, steel mesh steel main factors described damage are:

1, the load change, extended service, standards and procedures changes result in inadequate bearing capacity of the structure;

2, member due to various accidents deformed, twisted, disability, dents, etc., resulting in the member section weakened rod warping, cracking and other connections;

3, causing the connection member or deformation, cracking and warping under the action of thermal difference;

4, due to chemical substances erosion and corrosion and electrochemical corrosion of steel resulting in the member section weakened;

5, the other including design, production, construction errors and improper use of the service period and other operations.
 

Under what circumstances most likely to damage the steel?
 1, a cross-sectional reinforcement method: partial or full length along with steel reinforcement member, are integrally connected together so that the force;
 2, changing the calculation diagram: adding additional support, adjust the load distribution, reduce the level of the internal forces of statically indeterminate structure bearing for forced displacement, reduce peak stress;
 3, prestressed cables: the use of high-strength structural weaknesses or cable reinforcement structure to improve the overall capacity, stiffness and stability degrees.