Mullion deflection under wind pressure
Mullion deflection under wind pressure
(OP)
Hi All,
This is my first post here!
I work in doors and windows industry. One of the tests we often do is structural testing.
For those who want to have an idea about it, the aim is to measure the maximum deflection of the mullion(middle vertical member of a window) under certain wind pressures according to the standard.
My aim is to find the best way to calculate this deflection without participating the actual test to save some money for the company.
There are charts and graphs available but I am very curious to find the right formula for this calculation.
for example on the following website they have developed a calculation but they haven't mentioned the method of their calculations.
http://www.aluconengineering.com/mullion-deflectio...
Please see attached and share your thoughts.
Cheers
Ali
This is my first post here!
I work in doors and windows industry. One of the tests we often do is structural testing.
For those who want to have an idea about it, the aim is to measure the maximum deflection of the mullion(middle vertical member of a window) under certain wind pressures according to the standard.
My aim is to find the best way to calculate this deflection without participating the actual test to save some money for the company.
There are charts and graphs available but I am very curious to find the right formula for this calculation.
for example on the following website they have developed a calculation but they haven't mentioned the method of their calculations.
http://www.aluconengineering.com/mullion-deflectio...
Please see attached and share your thoughts.
Cheers
Ali






RE: Mullion deflection under wind pressure
RE: Mullion deflection under wind pressure
In fact, with same data, simply supported deflection is the double of the twin span deflection (using formulas of website)because the span is double
RE: Mullion deflection under wind pressure
Not sure what you mean by your last statement. But doubling the span gives a lot more than double the deflection.
RE: Mullion deflection under wind pressure
RE: Mullion deflection under wind pressure
RE: Mullion deflection under wind pressure
Can someone help me out with the formula of max deflection under spread trapezium load?
RE: Mullion deflection under wind pressure
RE: Mullion deflection under wind pressure
May I trouble you to run the formula on my example. The formula is not 100% clear specially the powers on "c" and "l" I am getting funny results.
RE: Mullion deflection under wind pressure
for steel E= 2'100'000 kg/cm2
deflection f= cm
load Q= metric tons
span l=meter
Inertia J=cm4
PS : attached a better scan