0
You just take an example as rect section with A=17.6*10=176 mm2 and your I section too has same area of 176 mm2.
Calculate moment of inertia of rectangular section I = bd3/12 = 1466.66 mm4
For I section, Width of both flange = 20 mm, thickness of both flange = 4 mm, web length=16 mm, web thickness = 4mm. This gives you the same area A=176 mm2
Now Calculate moment of inertia of I section I =8938 mm4 (Do it from any online converter or by calculations)
Now compare both Moment of inertia, I section has approx six times better moment of inertia as compared to rectangular section. Put up this moment of inertia values in deflection and bending stress equations and try to compare both. This is because the material is put up in such a way to get maximum moment of inertia with minimum material and min weight. Finally this is the reason why I beams are preferable over rectangular beams
Once Put up this moment of inertia values in deflection and bending stress equations and try to compare both. you will get it in sec
What else can I help you with?
How Inverted flight of helicopter is achieved?
Upside-down helicopters fall until they turn back over. Sometimes they don't turn back over, and they crash.
Does speed equal distance over time?
Yes.
What is the relationship between a nut thread and a screw thread?
when a spiral groove is cut over a hole, then it is nut thread. when a spiral groove is cut over a shaft, then it is screw thread.
What is magnetic casting?
a magnetic casting is what goes over a magnet
Where should the pressure enter a globe valve?
Over the seat
What is The advantages of wide flange beam compare to rectangular beam?
Wide flange beams offer several advantages over rectangular beams, primarily due to their shape and structural efficiency. They provide greater strength-to-weight ratios, allowing for better load distribution and reduced material usage. Additionally, their design enhances resistance to bending and torsional forces, making them ideal for various applications in construction and engineering. This shape also facilitates easier connections and integration with other structural elements.
What is the advantages of rectangular section of a beam over the circular section?
none. circular columns are better than rectangular ones.
In terms of web casting is a dedicated video card preferable over an integrated card?
integrated card
Can you refreeze steak once it is defrosted?
Yes. It is preferable over trying to refreeze raw thawed chicken.
Is it better to ask a girl out over msn or phone?
preferable you should do it in person, but in my opinion either is fine
What is the advantage of v notch over rectangular notch?
Well a V-notch gives better accurate results when compared to rectangular notch.
Why should double data type is preferable over float data type?
by default any float value is double
Can you get pulled over for having your high beams on?
yes you can... do to the patriot act they can pull ya over for anything and say they have probabel cause but you not gonna get sighted for it
Accountant not giving advice?
Find a new accountant with tax planning experience. Personal recommendations are preferable over the yellow pages.
Are some jobs too important or too dangerous for machines to take over?
Actually if a job is too dangerous it is often preferable to have a machine take it over if the machine can be built to do it.
Rusting lintels are found over the top of?
The clue is " OVER THE TOP OF" metal sinks windows metal roof flashing metal beams The only possible answer is OVER THE TOP OF WINDOWS
Does a phone with square shape have any advantage over rectangular phone?
movies look better
