Design methods for engineering load and comfort of steel structures

Steel structure building is now a lot of architectural design in the use of the structure. Traditional construction has been unable to meet the needs of the people, so the steel structure workshop began to appear.

Steel structure engineering compared with high house of reinforced concrete structures, high-rise steel structure engineering in general are soft, the wind load and earthquake under the action of lateral displacement value is larger, if the building under the action of wind, a large swing or reverse, will feel have a great influence on the human body, often make a person feel uncomfortable, sometimes even unbearable, studies have shown that Human body is most sensitive to wind vibration acceleration. In order to ensure a good working and living environment under wind force, it is necessary to limit the maximum acceleration parallel to and perpendicular to the direction of wind load.

When buildings under wind load or more severe earthquake is produced by the lateral deformation is too large, will cause the breakage of the building to decorate material and not the destruction of the structures, appear in the residual deformation, steel structure engineering components in the rarely met earthquake cases, if the deformation of the steel structure engineering will cause great effect, the serious damage of structure components can cause injuries, Excessively tilted buildings will also cause psychological panic among residents. At this time, in addition to ensuring that the structure does not collapse, the maximum deformation should be limited.

Therefore, it can be seen that high-rise steel structure engineering buildings must have enough lateral stiffness under wind load and earthquake, which requires the lateral displacement value to be limited during structural design. The lateral displacement limit can be divided into overall relative displacement and inter-house relative displacement, among which the inter-storey relative displacement limit is more important.