Final answer:
Model building codes require considering additional wind forces such as those caused by the Bernoulli effect, in addition to direct wind pressure, ensuring buildings maintain stable equilibrium under various environmental conditions.
Step-by-step explanation:
In addition to the consideration of direct wind pressure on a building's surface, model building codes require consideration of additional wind forces such as those caused by the Bernoulli effect. Engineers and architects must ensure that buildings achieve stable equilibrium to withstand not only the direct force of the wind, but others include wind directly from the side and rain or other precipitation falling straight down. For a structure to be in equilibrium, the net external force and net torque on the structure must be zero.
This understanding is crucial when considering expert situations such as in Boulder, Colorado, where winds can reach sustained speeds of 45.0 m/s. Using Bernoulli's principle provides an approximate force on structures, like the force on a roof with a given area, assuming laminar flow and accounting for turbulence which is a significant factor in real-world conditions.
Therefore, building codes must take into account a range of environmental factors and forces to ensure safety and structural integrity, including wind direction, speed variations, and the dynamic interactions with the building surfaces.