Expansion joints are provided in the mullions of a glass-aluminum curtain walls. Is the width of these joints determined based only on thermal expansion and contraction of mullions? Explain.
What will be an ideal response?
The width of expansion joints in mullions is based on thermal movement as well as the creep in concrete columns
(in a concrete frame building) plus the live load deflection of spandrel beams to which the mullions are anchored.
You might also like to view...
What type of dryers use hot gases passed upward through wet solids at a velocity high enough to lift the solids and cause them to act like a fluid?
A. Flash dryers B. Fluid bed dryers C. Fixed bed dryers D. Rotary dryers
Si los colgantes son demasiado cortos en una máquina con una pluma más larga, _____.
a. se producirá una sobrecarga en los sistemas de la pluma, mástil, colgantes y pluma de elevación cuando se manipulen cargas casi al límite de la capacidad b. la pluma se inclinará hacia atrás y, posiblemente, hará que la grúa vuelque c. se dañará el dispositivo de antibloqueo doble d. se dañará el cable de elevación
In the final drawing, cutting plane lines should be drawn thick
Indicate whether the statement is true or false
Under what conditions do manufacturers recommend using block heaters in mobile light duty diesels?
A. Below -10 degF (-23degC). B. Block heaters are aftermarket devices not recommended by manufacturers. C. Prior to starting an engine that has sat in a cold climate for extended periods. D. Anytime outside air temperatures fall below freezing.