Structural System Structural System OverviewOverview

2

Buildings’ Elements

RoofBeam(RB)Beam(B)Ground Beam(GB)

Column(C)Slab(S)

Footing(F)

3

Loads subjected to Buildings

4

3. Overview Structural Systems

A.Truss

B. Beam&Column, Rigid Frame

C. Bearing wall

D.Floor Systems

E. Lateral Load Systems

5

A. Truss• Plane Truss

• Space Truss

2-D

3-D

Hinge joint

Comp.

Tens.

6

B. Beam&Column

7

Truss vs. Frame

8

Column

9

Beam behavior

10

Flexural-Sections

11

C. Wall Bearing

12

Wall Bearing & Shear Wall

13

D. Floor Systems

• What is slab?

• How to consider?

• Look at the 4 next pages before going to theory….

14

Load Carried System

15

16

Short & Long Span

17

Column strip?

18

TYPE OF FLOOR SYSTEMS

It can be classified in different ways:By Material UsedBy Structural action of the slab

By Method of construction

19

By Material Used

Floor slab : Reinforced concrete, Timber, steel, brick

Beam or Girder : Reinforced concrete, Timber, steel

20

By Structural action of the slab

Bearing slab (Slab on ground) One way slab Two way slab Joist slab, Waffle slab Flat Slab Irregular slab

21

By Method of construction

Cast in situ concrete Slab and Beam

Precast concrete slab….on Beam…

Precast beam and slab Precast slab on steel beam

22

Factors for Design and Cons.

Load… LL., DL., FL. Span Thickness Deflection and Vibration Stiffness Methods….

23

Comparison for slabs

Timber SlabSteel SlabConcrete Slab

Details in class

24

High-Rise buildings