4.10 Member AB is the beam under consideration. As shown in the illustration of the condition, member AB is an overhanging beam that supports a uniformly distribu load of 500 lb/ft. It also carries concentrated loads from a rooftop HVAC unit (4 an interior hanging display support (2000 lb), and a marquee sign (3000 lb). Marquee overnang I Raof kiats Display SuPport w = 500 Ib/Ft 4000 b 2000 1 II Seeel beam FE > FE 20Oftop HVAC unit 1O FE Marquee sign<

Structural Analysis
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Chapter2: Loads On Structures
Section: Chapter Questions
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4.10 Member AB is the beam under consideration. As shown in the illustration of the loading
condition, member AB is an overhanging beam that supports a uniformly distributed roof
load of 500 lb/ft. It also carries concentrated loads from a rooftop HVAC unit (4000 lb),
an interior hanging display support (2000 lb), and a marquee sign (3000 lb).
Marquee
overnang
Displau
SLIPPort
II Raof Kiots
Ol I
W = 500 Ib/Ft
A
B
4000 b 2000 000 I
Steel beam
!!
I1
3 FE 5 FE
- Ft
RoOFtop HVAC unit
10 FE
4 Ft
Marquee sign<
R
R2
Steel beam
(negligible weight)
Free-body diagram
Dispiay
Support
Loading condition
Transcribed Image Text:O 88 130% v - + I Annotate T| Edit Trial expired Unlock Full Version ENGR 263 + A A A T O 4.10 Member AB is the beam under consideration. As shown in the illustration of the loading condition, member AB is an overhanging beam that supports a uniformly distributed roof load of 500 lb/ft. It also carries concentrated loads from a rooftop HVAC unit (4000 lb), an interior hanging display support (2000 lb), and a marquee sign (3000 lb). Marquee overnang Displau SLIPPort II Raof Kiots Ol I W = 500 Ib/Ft A B 4000 b 2000 000 I Steel beam !! I1 3 FE 5 FE - Ft RoOFtop HVAC unit 10 FE 4 Ft Marquee sign< R R2 Steel beam (negligible weight) Free-body diagram Dispiay Support Loading condition
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EXERCISES
Eleven sets of illustrations and the corresponding free-body diagrams of building-related
beams were provided in Chapter 4 as Exercises 4.I through 4.11. These free-body diagrams
constitute exercises that will be used here and again in Chapter 12. Follow these instructions
carefully to save time later:
(a) On each sheet of engineering paper reserved for analysis, calculate the vertical shear
specific to that member at appropriate intervals across the length of the free-body
diagram. Be sure to solve for locations where shear passes through zero.
(b) On cach sheet of engineering paper containing the free-body diagram, neatly draw
the related shear diagram directly below the associated free-body diagram. The
shear diagram should be located in the middle one-third of the page. Reserve the
bottom one-third of the sheet for the bending moment diagram introduced in Chap-
ter 12. Be sure to show locations where shear passes through zero.
Transcribed Image Text:130% v - + 7 Annotate T| Edit Trial expired Unlock Full Version ENGR 263 A A A EXERCISES Eleven sets of illustrations and the corresponding free-body diagrams of building-related beams were provided in Chapter 4 as Exercises 4.I through 4.11. These free-body diagrams constitute exercises that will be used here and again in Chapter 12. Follow these instructions carefully to save time later: (a) On each sheet of engineering paper reserved for analysis, calculate the vertical shear specific to that member at appropriate intervals across the length of the free-body diagram. Be sure to solve for locations where shear passes through zero. (b) On cach sheet of engineering paper containing the free-body diagram, neatly draw the related shear diagram directly below the associated free-body diagram. The shear diagram should be located in the middle one-third of the page. Reserve the bottom one-third of the sheet for the bending moment diagram introduced in Chap- ter 12. Be sure to show locations where shear passes through zero.
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