Embed Size (px)
Citation preview
Structural & Geotechnical Design of 50 Storey Tower
(Chamber of Commerce) in Dammam City.
Final-Exam Presentation
Supervisor’s:
Engr. Danish Ahmed
Dr. Tahar Ayadat
Coordinator:
Dr. Andi Asiz
PRESENTED BY:
MOHANAD AL-OTAISHAN : 201300456
ABDULRAHMAN AL-AMER : 201300351
1 12/28/2017
Presentation
Outlines
CONCLUSION.
ACKNOWLEDGMENT.
COST ESTIMATION.
GEOTHECNICAL & FOUNDATION DESIGN.
ETABS ANALYSIS & DESIGN.
PRELIMINARY DESIGN & LOAD CALCULATIONS.
DESIGN CONSTRAINTS.
DESIGN CODES USED.
PROJECT DESCRIPTION.
OBJECTIVES.
2 12/28/2017
Project Objectives
Choosing an adequate structural
system.
Preliminary design of structural members.
Modeling using ETABS software for
design & analysis.
Geotechnical design of the foundation
system.
Writing technical
report
12/28/2017 3
Project Description
o Location:
Dammam City
o Commercial Tower
o 50 Floors
12/28/2017 4
Google maps
Project Description (Continues)
o Floors Area.
S.No Floor Area m2
1 Sub-Basement 3717.441
2 Basement 3717.441
3 Ground Floor 3717.441
4 Mezzanine 3717.441
5 Podiums 3717.441
6 First Group 1663.677
7 Second Group 1663.677
8 Third Group 1663.677
9 Fourth Group 1663.677
10 Fifth Group 1663.677
11 Sixth Group 1663.677
12 Seventh Group 1663.677
13 Eighth Group 1663.677
14 Roof Deck 1663.677
12/28/2017 5
o Tower 3D model
Reference: Arabtech Jardaneh
12/28/2017
Project Description (Continues)
6
CODES o Structural Design and Analysis codes:
- ACI 318-11 Code : American Concrete Institute
- SBC (301) : Saudi Building Code
o Geotechnical Design and Analysis:
- SBC(303): Saudi Building Code
- International Building Code (2009)
12/28/2017 7
DESIGN CONSTRAINTS
8 12/28/2017
Design
Constraints Project Application
Performance Several performance requirements were established
Serviceability Several factors considered such as durability, overall stability and
deflection limitations.
Economic Economical limitations were established
Environmental Did not affect our design
Environmental
Sustainability Did not affect our design
Manufacturability Being able to design a manufacturable building.
Ethical We did not violate any ethical rule as far as we are aware of.
Health and safety Several safety factors and precautions were taken into account in
designing process.
Social Did not affect our design
Political Did not affect our design
PRELIMINARY DESIGN & LOAD CALCULATION
9 12/28/2017
PRELIMINARY DESIGN
o Slab design
12/28/2017 10
o Slab
Type : Two Way Solid Slab – Flat Plate
Thickness : 37 cm
o Control deflection values.
o Satisfy shear requirements to prevent punching shear.
PRELIMINARY DESIGN(CONTINUOUS)
o Dead Load
12/28/2017 11
Dead Load Unit weight
(kN/m3) Thickness (m) W (kN/m2)
Sand 14 0.01 0.14
Mortar 20.5 0.01 0.205
Tile 23.5 0.01 0.235
Concrete Slab 24 0.37 8.88
Total service load per unit area W (kN/m2) 9.46
o Live Load
12/28/2017
PRELIMINARY DESIGN(CONTINUOUS)
12
Floor Live Load
(kN\m2)
Sub Basement 2
Basment 2
Ground Floor 5
Mezzanine 5
Podiums 2
First Group 2.5
Second Group 2.5
Third Group 2.5
Fourth Group 2.5
Fifth Group 2.5
Sixth Group 2.5
Seventh Group 2.5
Eighth Group 2.5
Roof Deck Floor 2.5
o Ultimate Floor Load
12/28/2017
PRELIMINARY DESIGN(CONTINUOUS)
13
Floor Live Load (kN\m2) Dead Load (kN\m2) Wu (kN\m2) = 1.2DL+1.6LL
Sub Basement 2 9.46 14.516
Basment 2 9.46 14.516
Ground Floor 5 9.46 19.316
Mezzanine 5 9.46 19.316
Podiums 2 9.46 14.516
First Group 2.5 9.46 15.316
Second Group 2.5 9.46 15.316
Third Group 2.5 9.46 15.316
Fourth Group 2.5 9.46 15.316
Fifth Group 2.5 9.46 15.316
Sixth Group 2.5 9.46 15.316
Seventh Group 2.5 9.46 15.316
Eighth Group 2.5 9.46 15.316
Roof Deck Floor 2.5 9.46 15.316
COLUMNS DIMENSIONS
Column Group Dimensions (m)
1 x 0.4
0.8 x 0.4
2 x 1.5
2.5 x 2.5
2 x 2
2.5 x 2
1 x 1
ETABS 2013 Software
12/28/2017 14
ETABS MODELING
15 12/28/2017
o 3D model
ETABS 2013 Software
12/28/2017
ETABS MODELING
16
o Typical Floor Plan (Columns)
ETABS 2013 Software
12/28/2017
ETABS MODELING (CONTINUOUS)
17
o Typical Floor Plan
(Shear Walls)
ETABS 2013 Software
12/28/2017
ETABS MODELING (CONTINUOUS)
18
o Typical Super Structure Floor
Plan (Columns).
ETABS 2013 Software
12/28/2017
ETABS MODELING (CONTINUOUS)
19
o Typical Super Structure Floor
Plan (Shear walls).
ETABS 2013 Software
12/28/2017
ETABS MODELING (CONTINUOUS)
20
ETABS ANALYSIS
21 12/28/2017
ETABS ANALYSIS
Structural members sizes are accepted!
Actual drift in X & Y is
less than the allowable
limit.
Actual deflection is less than the
allowable deflection.
3D model created using
ETABS.
12/28/2017
According to SBC
22
ETABS
ANALYSIS (CONTINUOUS)
o Load Combination:
DL + LL
o Allowable deflection = 25mm
per floor (according to SBC).
ETABS 2013 Software
12/28/2017 23
o Load Combination:
WindX + DL
o Allowable drift = 1930mm
(according to SBC).
ETABS 2013 Software
12/28/2017
ETABS
ANALYSIS (CONTINUOUS)
24
o Load Combination:
WindY + DL
o Allowable drift = 1930mm
(according to SBC).
ETABS 2013 Software
12/28/2017
ETABS
ANALYSIS (CONTINUOUS)
25
ETABS 2013 Software
o Load Combination:
eqX + DL
o Allowable drift = 1930mm
(according to SBC).
12/28/2017
ETABS
ANALYSIS (CONTINUOUS)
26
ETABS 2013 Software
o Load Combination:
eqY + DL
o Allowable drift = 1930mm
(according to SBC).
12/28/2017
ETABS
ANALYSIS (CONTINUOUS)
27
ETABS 2013 Software
o Maximum moment at Sub-Basement
12/28/2017
ETABS
ANALYSIS (CONTINUOUS)
28
12/28/2017 29
REINFORCEMENT DETAILS
REINFORCEMENT DETAILS
(COLUMNS)
AUTOCAD 2016 Software
12/28/2017
30
Column
Group
# of bars Diameter
(mm)
Spacing
(mm)
2.5 x 2.5 94 57 43
2 x 2 80 57 40
AUTOCAD 2016 Software
12/28/2017
31
REINFORCEMENT DETAILS
(COLUMNS)
Column
Group
# of bars Diameter
(mm)
Spacing
(mm)
2 x 1.5 64 57 60
1 x 1 48 32 43
AUTOCAD 2016 Software
12/28/2017
32
REINFORCEMENT DETAILS
(COLUMNS)
Column
Group
# of bars Diameter
(mm)
Spacing
(mm)
2.5 x 2 110 57 29
0.8 x 0.4 20 32 80
12/28/2017
AUTOCAD 2016 Software
REINFORCEMENT DETAILS (SLAB)
33
12/28/2017
AUTOCAD 2016 Software
REINFORCEMENT DETAILS
(SHEAR WALLS)
34
GEOTECHNICAL DESIGN
35 12/28/2017
o Soil profile
Geotechnical Design
12/28/2017 36
o Characteristics:
- Driven Piles.
- Bored Piles.
Foundations: Section A Section B
Selected Foundation
system:
Piled Mat Foundation Piled Mat Foundation
Factor of safety: 3 3
Mat Foundation
Thickness
3.4m. 1.66m.
Net bearing capacity: qu(net)=31,795 kN/m2 .
qall(net)=10,598 kN/m2 .
qu(net)=32,132 kN/m2 .
qall(net)=10,710 kN/m2
Geotechnical Design (Continues)
12/28/2017 37
AUTOCAD 2016 Software
o Mat Foundation With Applied
Loads(DL+LL)
12/28/2017
Geotechnical Design (Continues)
38
AUTOCAD 2016 Software
o Design of Mat foundation:
- Strip Method
12/28/2017
Geotechnical Design (Continues)
39
o Design of Mat foundation:
- Steel Rebar.
Foundation Top Steel Bottom Steel
Section A @D=12mm, #=4 bars. @D=24mm, #=11 bars.
Section B @D=10mm, #=4 bars. @D=18mm, #=9 bars.
12/28/2017
Geotechnical Design (Continues)
40
o Piles Design.
Foundations Section A Section B
Pile Diameter(m) 0.3 0.3
Qall(kN) 2054.9 1356.2
Number of piles 238 266
12/28/2017
Geotechnical Design (Continues)
41
o Group of Piles
12/28/2017
Geotechnical Design (Continues)
42
o Piles Spacing and
Dimensions.
AUTOCAD 2016 Software
12/28/2017
Geotechnical Design (Continues)
43
12/28/2017 44
COST ESTIMATION
COST ESTIMATION
45 12/28/2017
Based on the construction prices for one unit m2 in the region of Dammam city for the period 2017/2018
Floor Type Unit Price (m2)
Floor Area (m2)
Total Area (m2)
Cost (SAR)
Super Structure 3000 1840 73600 220,800,000
Ground Floor & Mezzanine
4500 3720 7440 33,480,000
Podiums 2500 3720 29760 74,400,000
Total Cost 328,680,000
ACKNOWLEDGMENT
12/28/2017 46
CONCLUSION
12/28/2017
oChoosing an adequate structural system.
oPreliminary design of structural members.
oModeling using ETABS software for design & analysis.
oGeotechnical design of the foundation system.
47
REFERENCES
12/28/2017 48
o ACI 318-11 Code : American Concrete Institute.
o SBC (301) : Saudi Building Code.
o SBC(303): Saudi Building Code.
o International Building Code 2009.
o Principle of Foundation Engineering BRAJA DAS (7th edition).
o Arabtech Jardaneh.
o Abdulrahman Al-Otaishan Group.
AUTOCAD 2016 Software
12/28/2017 49
![Stage (2) Proposed Nine Storey Tower. Yarra Council Officers Report. Land: Railway Place [1-3]](https://img.pdfslide.us/doc/110x75/5572102f497959fc0b8cc32c/stage-2-proposed-nine-storey-tower-yarra-council-officers-report-land-railway-place-1-3.jpg)
![Feasibility Study for Building a 11-Storey Residential Tower in the International City, Warsan, Dubai – UAE [NPR]](https://img.pdfslide.us/doc/110x75/5a6d4dcd7f8b9ab8418b6337/feasibility-study-for-building-a-11-storey-residential-tower-in-the-international.jpg)
