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kannavalla
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Join Date: Nov 2011
Posts: 2

How to Find Withstand Load for SSB Over Hanging Beam with Two Point Loads?

11/02/2011 4:18 AM

How to find Withstand load for Simply supported overhanging Beam with two point loads ?

Pls reply for this ..............
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CaptMoosie
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#1

Re: How to Find Withstand Load for SSB Over Hanging Beam with Two Point Loads?

11/02/2011 9:26 AM

There is insufficient information presented to effectively answer your Q.

You need to supply the beam span, the location and magnitude of the concentrated loads (respectively), the type of beam, the beam material properties as well as the sectional properties.

[Sounds to me like another homework problem, presented by yet another clueless engineering student.........if so, crack open your "Statics & Strength of Materials" textbook that your professor requires you to study and study your arse off until you know how to solve the problem correctly.....we don't help students answer their homework problems in this forum!]

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Doorman
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#2
In reply to #1

How To Get CR4 To Help With My Homework?

11/02/2011 11:09 AM

Dude, that's harsh!

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CaptMoosie
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#3

Re: How to Find Withstand Load for SSB Over Hanging Beam with Two Point Loads?

11/02/2011 1:21 PM

Ummmmm.....just couldn't help myself!!!!!!! hehehehe

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blackpanic73
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#4

Re: How to Find Withstand Load for SSB Over Hanging Beam with Two Point Loads?

11/02/2011 6:28 PM

Dear kannavalla

Greeting to you

here you are solved example for rack support beam

follow the procedures

Pipe Line

:- For size 4" sch.40 (STD.)

SA-283 Gr. C equ. to ST.37

:- Rack support material

108247

15,700:-

(Ss), Max. allowable stress for support material - (Kpa, (psi))

114.3

4.5:-

(Do), Outside Diameter (mm,(in))

6.02

0.237:-

(tn), Nominal wall thickness (mm,(in))

16.07

10.79:-

(w), Weight of empty pipe (kg/m,(lb/ft))

1000

0.0361:-

(ρ), Fluid density(water) (kg/m3,(lb/in3))

5000

196.85:-

(L), pipe span between two supports (mm,(in))

1000

39.37:-

(Lm), Moment arm length for pipe acting on support (mm,(in))

9.81

32.19:-

(ACC), Acceleration (m/s2,(ft/s2))

Inside diameter of pipe

(d) =

Do-2*tn4.03in102.26mm
Internal fluid weight

(wf) =

(Π*d

2/4)*L*ρ

90.49lb41.04kg
Total weight of pipe

(wT) =

(w*L)+w

f

267.63lb121.39kg
Load acting on support due to total weight

(wL) =

w

T*(ACC)

8613.6lb.ft/s

2

1190.88kg.m/s

2

Weight of any concentrated load acting on support

(wC1) =

0.00lb0.00kg
concentrated load weight represent in weight of other pipes supported on cantilever
Moment arm length for w

c1 (LC1) =

0.00in0.00mm
Weight of any concentrated load acting on pipe

(wC2) =

0.00lb0.00kg
Moment arm length for w

c2 (LC2) =

0.00in0.00mm
Weight of any concentrated load acting on pipe

(wC3) =

0.00lb0.00kg
Moment arm length for w

c3 (LC3) =

0.00in0.00mm
Load acting on support due to concentrated load w

C1 (FC1) =

w

C1*(ACC)

0.0lb.ft/s

2

0.00kg.m/s

2

Load acting on support due to concentrated load w

C2 (FC2) =

w

C2*(ACC)

0.0lb.ft/s

2

0.00kg.m/s

2

Load acting on support due to concentrated load w

C3 (FC3) =

w

C3*(ACC)

0.0lb.ft/s

2

0.00kg.m/s

2

Total load acting on support

(WTL) =

W

L+FC1+FC2+FC3

at mid (assuming)8613.6lb.ft/s

3

1190.88kg.m/s

2

Bending moment due to w

L (MwL) =

(W

L/4)*(Lm/1000)

403.7lb.ft297.72N.m
Bending moment due to F

c1 (MF1) =

(F

C1/4)*(Lc1/1000)

0.0lb.ft0.00N.m
Bending moment due to F

c2 (MF2) =

(F

C2/4)*(Lc2/1000)

0.0lb.ft0.00N.m
Bending moment due to F

c3 (MF3) =

(F

C3/4)*(Lc3/1000)

0.0lb.ft0.00N.m
Total bending moment acting on support

(MT) =

(M

wL)+ (MF1)+ (MF1)+ (MF1)

403.7lb.ft297.72N.m
Modulus

(Z) =

M

T/Ss

0.168in

3

2.750Cm

3

select the Rolled Steel Channel (RSC) section from structural steel beam tables

S5X10 RSC

RSC weight10.00lb/ft14.88kg/m
Modulus (Z

S) for selected RSC =

1.37in

3

22.450Cm

3

check

ZS > Z

Ok

Modulus of elasicity

(E) =

210000N/mm

2

30457925Ib/in

2

Moment of inertia

(I) =

1.22in

4

507802.3mm

4

Maximum deflection

(ς) =

(w

TL*Lm3)/(48*EI)

0.009in0.233mm
safety ratio

(SR) =

(ς) / L

m

0.0002

check

S

R < 1/360

Ok

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