Crack width calculation is one of the serviceability requirements in the structural concrete elements.
The crack width of a flexural member is obtained by multiplying the maximum crack spacing by the mean strain of the flexural steel reinforcement.
Wind Load on Roof Screen Based on IBC 2006 / ASCE 7-05
EXTERNAL WIND PRESSURE is the physical principle behind the pressure tube (Pitot) or pressure-plate anemometer. The wind pressure is also used to orient wind vanes and measure the wind direction.
The pressure plate measures the deflection of a flat plate that is continually oriented along the wind direction by a vane.
Dynamic wind load gives rise to vertical motion, creating oscillations in any direction. Like the breaking of an overused violin string, oscillations are vibrations that can cause a bridge to fail.
