Beirut Arab University Dept. of Civil Engineering CVLE424 Steel Design (II) Spring 2016 Project #1 Due: April 7th , 2016

Names: …………………………………………………. IDs: ……………………………………………… …………………………………………………. ……………………………………………… …………………………………………………. ………………………………………………

A typical intermediate steel frame structure is shown in the figure below. It is

used to cover a plan area of [L*B] for an industrial building. The steel columns are hinged at the bases. The main frame slopped rafter supports roof purlins supporting a light sandwich-panel roof. An overhead crane bridge is used to lift heavy weights, and is supported on two crane girders which are supported on tapered brackets. A secondary truss is annexed to the main frame. An RC slab supported on roof beams covers the truss. A monorail beam is hanged to the lower-chord of the truss.

Given:

Impact (I)= 25 % * Lateral shock (LS)= 10% Braking force (BF)= 15 % * Steel 37 12mm Gusset plates * Bolts M20 (8.8) Electrodes: E480xx

DATA

Dead Loads Live

Load

Wind

Load

Panel

wigth Bays Spacing

Monorail

Loads

OH-Crane

Loads

Steel skeleton

(kg/m2)

Light Roof

(kg/m2)

LL (kg/m2)

(qs) (kg/m2)

a (m)

N S

(m) 2P(t) – e(m)

Pmax(t) -Pmin(t)-

e(m)

60 40 200 100 1.80 10 4.0 2*2-1.0 4-1-2.4

65 45 180 90 1.90 9 4.5 2*2-1.0 4-1-3.0

70 50 160 80 2.00 8 5.0 2*2-1.0 6-1.5-2.6

75 55 140 100 2.20 8 5.5 2*3-1.0 6-1.5-3.0

80 60 120 90 2.40 10 6.0 2*3-1.0 8-2-3.0

85 65 120 80 2.50 9 6.5 2*3-1.0 8-2-3.4

Dr. Adnan C. Masri Eng. Farah Jaafar

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CVLE424 Steel Design II– Spring 2016

2

Required:

1. Draw to scale 1:100 all views for the bracing system for this structure. 2. Design an intermediate roof UPN purlin using ____ sag rod(s). 3. Design an intermediate IPE beam supporting the RC slab. 4. Design the monorail girder using an IPE section. 5. Design the crane girder using (IPE+UPN). (Due: 4-3-2016) 6. Design an intermediate girt (Wind ward side). 7. Design the bracket. 8. Using 2D structural modeling, determine the straining actions due to all necessary load

combinations in: a. The members of the annexed intermediate truss. b. The members of the main intermediate frame.

9. Design the truss members assuming welded connections. (Due: 25-4-2016) 10. Design the built-up column as 2 battened UPNs (b=25cm). 11. Design the rafter and the three columns. 12. Design the following connections:

a. Truss connections (welded). b. Truss-column connections. c. Bracket-column connection. d. Rafter-column connections. e. Rafter-rafter connection. f. Column bases.

13. Draw to scale 1:50 an elevation view for the whole structure showing all details. (Due: 14-4-2016)

L1= 8a

12 cm RC slab

h2= 1.5a

h3= a

h1= 3a

0.4a

Crane girder

Bracket

Rafter

Light sandwish-panel roof

Column 3.7a

ELEVATION VIEW

L2= 4a

Built-up Column

3a

Monorail girder