The main cause of steel structure damage

Steel structure is mainly made of steel structure, which is characterized by steel beams, steel columns, steel trusses and other components made of section steel and steel plates; The structure in which welds, bolts or rivets are connected between components or components is one of the main types of building structures.

Steel structure engineering is widely used, such as temporary simple activity rooms in the field of construction sites, long-span stadiums, residential buildings, Bridges, ships and other projects are often used. The steel structure is also damaged when we want to find the immediate solution.

The main factors of steel structure damage are:

(1) Due to load changes, extended service, and changes in norms and regulations resulting in insufficient structural bearing capacity, steel structure engineering and general concrete structure engineering have the same service life, especially after the demolition of multiple uses, to strictly in accordance with the standard maintenance, and often observe the geological structure and stress surface, so as to achieve safe use.

(2) Components due to various accidents caused by deformation, distortion, disability, depression, etc., resulting in the weakening of component section, rod warping, connection cracking, etc. Since steel structural parts can be recycled and reused, many steel structural parts have been used for many times, resulting in changes in material size, force parameters, etc., and some have not been professionally constructed and designed, which is easy to produce engineering accidents and hazards.

(3) Deformation, cracking and warping of components or connections under the action of temperature difference. Because the coefficient of thermal expansion of metal building materials such as steel and concrete buildings is high, it is necessary to pay close attention to the changes in the structural parts of the main body of the steel structure in summer or in extremely warm weather to avoid the risk of accidents.

(4) Corrosion caused by the erosion of chemical substances and electrochemical corrosion cause the cross-section of steel structure members to weaken. Although the main body of the steel structure is coated with anti-corrosion coating, it will inevitably be corroded by corrosive substances in the process of use, and in the usual maintenance, it is necessary to avoid the stacking of corrosive substances.

(5) Others include mistakes in design, production and construction, and illegal use and operation during the service period. In the construction of steel structure engineering, construction and engineering personnel must be certified and have relevant qualifications, so as to ensure the safety of construction and construction.

In general, steel structure engineering is a rigorous engineering technology, which requires professional technical and construction requirements, but also requires important maintenance in the future, only in this way can we ensure the safety of people's property.