DESIGN CRITERIA

Property:

Reinforced Concrete Design

Beams = 400 x 600 mm

Columns = 400 x 400 mm

Steel Design

Beams = W14 x 370

Columns = W33 x 515

Slab Thickness = 120 mm

Design Parameters:

f’c = 27 MPa

fy = 414 MPa

Load System:

I. SEISMIC LOAD

As of UBC 1997

Zone 2 = 0.20, Manila

Importance factor, I = 1.0

Rw in X Direction (RWX) = 8.5

Rw in Z Direction (RWZ) = 8.5

Soil Profile Type, (Hard Rock)= 1

Near source factor (Na) = 1.00

Near source factor (Nv) = 1.00

Ct = 0.0853 for steel moment resisting frames

Ct = 0.0731 for rc moment resisting frames

II. WIND LOAD

As of ASCE – 7, 2002

Building Classification Category = Category I

Basic Wind Speed,V = 200 kmph

Exposure Category = Exposure B

Structure Type = Building Structures

Building Height = 15.5m

Building Length along the direction of Wind(L) = 30m

Building Length Normal to the direction of wind (B)= 24m

Building Natural Frequency = 2 Hz

Building Damping Ratio = 0.01

Enclosure Classification: Partially Enclosed

III. DEAD LOAD

1. Floor Slab (Self Weight)

2. 6” Hollow Concrete Masonry Units Plastered

on Both Side (Full Grout Spacing) = 3.11 kPa

3. 4” Hollow Concrete Masonry Units Plastered

on Both Side (Full Grout Spacing) = 2.98 kPa

4. Stairs = 4.00 kPa

5. Wood Block (76 mm) on 13mm Mortar Base = 0.77 kPa

6. Solid Flat Tile on 25mm Mortar Base = 1.10 kPa

7. Ceramic Tile (20 mm) on 13mm Mortar Bed = 0.77 kPa

8. Suspended Metal Lath and Gypsum Plaster = 0.48 kPa

9. Ordinary Plywood (1/8”)

with 2x2 Ceiling Joist = 0.24 kPa

10. Wood Furring Suspension System = 0.12

kPa

11. Electromechanical = 0.10 kPa

12. Interior Partitions = 1.00 kPa

13. Waterproofing, Bituminous Smooth Surface= 0.07 kPa

IV. LIVE LOAD:

1. Stairs = 4.80 kPa

2. Restroom = 1.90 kPa

3. Hallway = 2.90 kPa

4. Residential = 1.90 kPa

Member Load:

2nd Floor

WEXT = 3.11 x 3.25 = 10.11 kN/m

WINT = 2.98 X 3.25 = 9.69 kN/m

3RD Floor, 4th Floor, 5th Floor

WEXT = 3.11 x 3.00 = 9.33 kN/m

WINT = 2.98 X 3.00 = 8.94 kN/m

Stair

W = 4.00 x 5.00 = 20 kN/m

Floor Load:

DEAD LOAD

Bedroom Unit

W = (4) + (5) + (8) + (9) + (10) = 2.32 kPa

Hallway

W = (6) + (7) + (10) = 1.35 kPa

LIVE LOAD

Restroom = 1.90 kPa

Hallway = 2.90 kPa

Residential = 1.90 kPa