HSBC
Hongkong and Shanghai Banking Corporation
Yiming Guan, Yang Cao, Fu Chen
Introduction
• Finished in 1986
• High-tech
• Prefabrication
• Assembly on site
• Cost: $2.3 billion, the most expensive building at
that time.
• 594 feet (180m) height
• 47 stories above ground and 4 stories
underground
• 1076000 sf (100000㎡) floor space
Designer
• Architect: Norman Foster
He is one of Britain's most prolific architects of his
generation. In 1999 he was awarded the Pritzker
Architecture Prize,
• Structure Engineering: ARUP
• A multinational professional services firm headquar
tered in London which designed the structure of
CCTV, Sydney Opera House and so on.
Concept Design
• SOFT 1ST FLOOR (open to the public)
• SUSPENDED STRUCTURE (reconfigure office layouts with ease)
Sketch Drawing
Features
• Large, open and column free space
• Hanging structure
• Exoskeleton steel truss
• Elevate ground floor for public space
• 132 feet (40m) height atrium
• Mirrors on top of atrium were designed to
maximize the use of natural light.
Structure System
Mast Truss Cantilever Skin
Floor Plans
37-41
floors
30-35
3st Floor Plan 18th Floor Plan
floors
1-28
floors
30st Floor Plan 37st Floor Plan
Structure System
• Exoskeleton steel truss
• 8 masts- each consists of 4 columns, supporting
five discrete two-story height steel suspension
structure.
• The span is 112ft (33.5m) between the masts
and cantilever 36ft (10.7m) beyond them.
• Hanging structure
• 132ft (40m) height mirrored atrium.
Connection
• Pinned Connection- Trusses
• Rigid Connection- Floor Slab, Masts,
Cross Braces
• Weld Joints, Bolts and Rivets, Cast in site
Loads
• Gravity Loads
• Lateral Loads (wind, earthquake)
Gravity Loads
Exoskeleton Truss Frame
Gravity Loads
Floor Slab
Pair of Trusses
Structural Mast
Underground Structure
Gravity Loads
Gravity Loads
• Simplified Structure Figure
Lateral Load Design
Seismic
• The design basic acceleration of ground motion in
Hong Kong is 0.1g ~ 0.15g(0.9m/s²~1.5m/s²)
• Hong Kong is not belong to any seismic belt
• The ground of Hong Kong is sediment or backfill soil
Wind
• Hong Kong is located in typhoon area, the maximum
speed is 155mile/h
• 3~4 times typhoon a year
Lateral Load Design
Material
• Steel (30000t) : with natural ductile and also could be
designed with fully continuous
• Aluminum (4500t)
Structure
Large separation --- preferred
• Hong Kong has the highest density of tall buildings all
over the world.
Structure
Lower & Wider --- Better
(Ratio of height and width)
Overturning Overturning
Moment Moment
Wind Wind
High forces Lower forces
Resisting Resisting
Moment Moment
Lateral Load Design
Symmetry
• Structures are designed in symmetric
• Stairs and elevator cores are arranged in symmetric
Increase resistance to bending
• Greatest amount of material should be located in
the outer, rather than the inner, vertical elements.
Lateral Load Design
Short direction is important
• In rectangular buildings, the greatest problem with
lateral forces is in the short direction of the building,
although stability must be assured in both
directions. Short
Direction
Cross bracing
• Frame action is less efficient than either shear walls
or cross bracing
Long Direction
Lateral Load Design
Short direction is important
• In rectangular buildings, the greatest problem with
lateral forces is in the short direction of the building,
although stability must be assured in both
directions.
Cross bracing
• Frame action is less efficient than either shear walls
or cross bracing
Short Direction
Foundation and Soil
• 4 Stories basement
• A total of 32 reinforced concrete piles
• Based on sediment soil condition, The designers
chose to dig out 20 meters of infill and place
four additional levels below grade.
Lateral Load Design
Table 3.2.2
Seismic Load Calculate Seismic precautronary intensity 7
Design basic acceleration of ground motion 0.1-0.15g
Seismic Zone 2A
Table 8.1.1 The highest allowable height of steel structure (ft)
7
Structure type
(0.1-0.15g)
Frame with central bracing 730
(220m)
Table 16-1
Seismic Zone 2A
Z 0.15
Lateral Load Design
Table 3.2.2
Site class Z
0.15
SE 0.5
Seismic Load Calculate
Table 1 Approximate Fundamental Period Parameters
x 0.75
Structure type Cr
T=Crh =0.02*(730) =2.81
All Other Structure Systems 0.02
C=1.25SE/T 2/3 =1.25*(0.5)/2.812/3 =0.31
Table 1 Approximate Fundamental Period Parameters
Structure type x
All Other Structure Systems 0.75
Lateral Load Design
Table 5-14
Lateral load-resisting system description Rw
4. Concentrically braced frames 8
a. Steel
Load of structure: 338235KN
Load of DL: 4.5KN/M 2*100000M 2 = 450000KN
Load of LL: 2.5KN/M 2*100000M 2 = 250000KN
Total Load : 1038235KN (233364.081Kips)
C= (ZIC/Rw)W=(0.15*1.0*0.31/8) *233364.081=1356.43Kips
Lateral Load Design
Wind Speed Calculate
• Wind speed and Height
• V=V0(H/H0)^n
• V: wind speed at height H
• V0: wind speed at height H0 (H0, usually 10m,
n=0.1~0.4) Hong Kong maximum wind speed
Multiframe
Moment Diagram
a. Front wind
b. Side wind y
y
z
x
Multiframe
Shear Diagram
a. Front wind
b. Side wind
y
y
z
x
Multiframe
Axial Force Diagram
a. Front wind
b. Side wind y
y
z
x
Multiframe
Deflection Diagram
a. Front wind
b. Side wind
y
y
z
x
Conclusion
The structure system not only satisfied the design safety requirement, but also created splendid inner spaces. In
other words, the architecture was well expressed by the structure. But at same time, the building was based on
high cost which is hard to spread to other buildings.
Technical Tectonic Expensive
Yiming Guan, Yang Cao, Fu Chen
Thank you!
