Problem Statement: ASCE 7 Wind Velocity Pressure (Basic) You are defining the wind load parameters in STAAD Pro for a coastal building. Based on ASCE 7, the basic wind speed ($V$) is 60 m/s. The directionality factor ($K_d$) is 0.85, the exposure category dictates an exposure coefficient ($K_z$) of 1.1 at the roof height, and the topographic factor ($K_{zt}$) is 1.0. Calculate the velocity pressure ($q_z$) in N/m$^2$ at the roof height.

Problem Statement: ASCE 7 Wind Velocity Pressure (Intermediate) Calculate the velocity pressure $q_z$ for a building where $V = 130 \text{ mph}$, $K_z = 0.85$, $K_{zt} = 1.0$, and $K_d = 0.85$. Use the US Customary formula.

Problem Statement: ASCE 7 Wind Velocity Pressure (Advanced) If a topographic factor $K_{zt} = 1.2$ is applied due to a steep hill, what is the percentage increase in the velocity pressure $q_z$ compared to flat ground ($K_{zt} = 1.0$)?

Problem Statement: Seismic Base Shear (Basic) Using the Equivalent Lateral Force procedure, calculate the seismic base shear ($V$) for a building. The effective seismic weight ($W$) calculated by STAAD's mass model is 15,000 kN. The calculated seismic response coefficient ($C_s$) is 0.08.

Problem Statement: Seismic Base Shear (Intermediate) A large hospital has an effective seismic weight $W = 50,000 \text{ kips}$. The design spectral response acceleration $S_{DS} = 1.2g$. The response modification factor $R = 8$ (special moment frame), and importance factor $I_e = 1.5$. First calculate $C_s$, then find the base shear $V$.

Problem Statement: Seismic Base Shear (Advanced) In STAAD, if you accidentally include live load $L$ entirely in the seismic mass definition when code only requires $25\%$ of storage live load, and your true dead load $D$ is $10,000 \text{ kN}$ while the storage live load is $4,000 \text{ kN}$, calculate the percentage error in the resulting base shear $V$.

Case Study: Area vs. Floor Loads (Conceptual) You are modeling a two-way concrete slab that rests on a grid of beams. You need to apply a live load of 2.5 kN/m². You are deciding between using STAAD's 'Area Load' command and the 'Floor Load' command. Which is appropriate and why?

Case Study: Primary vs. Reference Load Cases (Conceptual) A large structure has 10 Primary Dead Load cases (self-weight, piping, equipment, cladding, etc.). The engineer defines all 10 as Primary Load Cases, but the model takes exceptionally long to run. How can Reference Load Cases improve this workflow?