Stress Independent of Yield Stress for Steel Members

Steel members are widely used in the construction industry due to their high strength and durability. The design of steel structures involves determining the permissible stress that a member can withstand without failure. The permissible stress is generally based on the yield stress of the material, which is the stress at which plastic deformation begins. However, there are certain stresses that are independent of the yield stress and can be used as permissible stresses for steel members.

Stress in Slab Base

One such stress is the stress in the slab base. The slab base is the part of the structure that supports the steel member, and it experiences a compressive stress due to the weight of the member. The stress in the slab base is independent of the yield stress of the steel member and can be used as a permissible stress.

Axial Tensile Stress

Axial tensile stress is the stress that develops in a member when it is subjected to a pulling force. This stress is dependent on the yield stress of the material and cannot be used as a permissible stress independent of yield stress.

Maximum Shear Stress

Maximum shear stress is the stress that develops in a member when it is subjected to a transverse force. This stress is also dependent on the yield stress of the material and cannot be used as a permissible stress independent of yield stress.

Bearing Stress

Bearing stress is the stress that develops in a member when it is in contact with a surface. This stress is dependent on the yield stress of the material and cannot be used as a permissible stress independent of yield stress.

Conclusion

In conclusion, the stress in the slab base is independent of the yield stress and can be used as a permissible stress for steel members. It is important to consider all the stresses that a member may be subjected to when designing a steel structure and to select the appropriate permissible stress for each stress type.