
Explore blast resistance design for steel structures, covering criteria, basis of design, dynamic and impulse loads, single and multi degree of freedom analyses, and offshore onshore applications.
See an example of roof panel design for blast load in a one-story metal building, detailing ballast resistance, bracing, exterior columns, roof deck, and foundation interactions.
Explore how to design steel wall panels to resist blast loads, evaluating panel capacity, ultimate moment, elastic and plastic behavior, and deflection under specified loads.
Use a single degree of freedom model in Excel to perform dynamic integration and compute response, including mass, effective mass, displacement, velocity, acceleration, and forces.
Design purlins for blast load by evaluating roof decking performance through dynamic analysis, considering spacing, boundary conditions, and elastic-plastic stiffness to ensure adequate natural frequency and shear capacity.
Design wall girts to resist blast load using wall panel reactions, dynamic and static factors, and ultimate moments. Assess shear capacity and stiffness in steel sections for safe performance.
design steel frame to resist blast load by modeling a rigid frame with cantilever columns, using a single-degree-of-freedom approach and software-based dynamic analysis.
Explore how to design foundations for steel structures under blast load, including checks for overturning moment, soil resistance, passive and frictional forces, and dynamic considerations.
This course part 3 objective is toknow how to design a steel structure under blast load by illustrated a complete example to apply the blast resistance analysis and design for steel structure. Part 1 was focusing about the blast load phenomena and the materials properties values under blast load. This part3 is presenting also the methods of analyzing the structure under blast load and part2 is the application on example of blast resistance for the concrete structure.
In this part 3 presents the case study illustrates the application of blast analysis by using the graph method, the closed formula and also the single degree of freedom (SDOF) by the integration method will be applied. The Newark integration method is illustrated theoretically in part1 and in this part3 presents this method and apply it in example through an excel sheet. These methods for applying structure analysis will be applied for the roof deck, roof purine, wall panel, wall girt and the frame structure and the bracing structure system as usual.
The multi degree of freedom (MDOF) method is also applied for the steel frame by using nonlinear analysis. The foundation design check for blast load will be discuss by checking the overturning, sliding and also design the foundation based on the maximum dynamic load.