Structural estimate ROOF SAILS PODIUM UNDER GROUND LOADING DUCKS NORTHERN BROADWALK WESTERN BROADWALK EASTERN BROADWALK MAN 0’WAR STEPS AND JETTY CONCRETE HALL SHELLS MONUMENTAL STEPS FORECOURT LOWER CONCOURSE Structural estimate • There were significant changes to the original plans of the Sydney Opera House. Also, the construction was commenced before the finalized designs. • Elements erection – highly advanced methods (post-tensioning for shells). Roof Sails: • Most recognizable part of the Opera House. • Due to full exposure to marine environment, There might be failure in ceramic tile skin or for grouting inside the post- tensioning ducts. • So, more focus should be given to investigate the structural performance. Tile lids: • Concrete ribs in the sails clad in 3382 chevron shaped tile lids which hold ceramic tiles in place. • A new approached was developed for the tile lid to achieve 3D spherical geometry of the frame work. • Thin acrylic flat mesh gives adjacent support for the surface. Structural estimate Lower concourse: • Completed in 1988. • Original intention was to provide with covered access and facilities supporting the Opera House • Sea wall treatment and the configuration of Lower Concourse became highly successful. Concrete conservation: • Opera house regularly monitors & prevents the corrosive maintenance of concrete and other fabric • Purpose – long lasting strategies for concrete. • Dr. Nutt worked for the structural engineering helped to focus the areas for concrete conservation. Roof Shells: • All the roof shapes are derived from the single sphere, which shares the common radius. • The design solution for the shells was a major feat by ultzon and ove Arup & partners. • Intensive efforts were made to hold self sustaining without reinforcement Structural estimate Roof Pedestals: • Roof pedestals are steel reinforced concrete structures at the base of the roof sails, exposed to natural elements. • Due to rainwater runoff, erosion and biological growth can be noticed. • Protective coatings and other measures became inefficient. • Pedestals became high heritage significance. Broad walks: • There are 3 types of broad walks: Northern broad walk Western broad walk Eastern broad walk • Western and Northern broad walks rest on steel reinforcement concrete piers. These piers are embedded into harbor floor. • Granite aggregate slabs used to clad the broad walks. Podium: • Its construction became an engineering event. • Purpose – continuous reinforced concrete which rises from the ground and overlooks the harbor. Structural estimate Underground loading docks: • There is an underground loading docks under the covered concourse accessed through tunnel entry from the south-western side of the forecourt. • Loading equipment, barriers are painted in bright yellow for indication. Glass wall: • Glass wall – an engineering achievement. • The construction of glas.

1. Structural estimate
ROOF SAILS
PODIUM
UNDER GROUND
LOADING DUCKS
NORTHERN
BROADWALK
WESTERN
BROADWALK
EASTERN
BROADWALK
MAN 0’WAR
STEPS AND JETTY
CONCRETE
HALL SHELLS
MONUMENTAL STEPS FORECOURT LOWER
CONCOURSE
Structural estimate

2. • There were significant changes to the original plans of the
Sydney Opera
House. Also, the construction was commenced before the
finalized
designs.
• Elements erection – highly advanced methods (post-tensioning
for shells).
Roof Sails:
• Most recognizable part of the Opera House.
• Due to full exposure to marine environment, There might be
failure in ceramic tile skin or for grouting inside the post-
tensioning ducts.
• So, more focus should be given to investigate the structural
performance.
Tile lids:
• Concrete ribs in the sails clad in 3382 chevron shaped tile
lids which hold ceramic tiles in place.
• A new approached was developed for the tile lid to achieve
3D spherical geometry of the frame work.
• Thin acrylic flat mesh gives adjacent support for the surface.
Structural estimate
Lower concourse:

3. • Completed in 1988.
• Original intention was to provide with covered access and
facilities
supporting the Opera House
• Sea wall treatment and the configuration of Lower Concourse
became highly successful.
Concrete conservation:
• Opera house regularly monitors & prevents the corrosive
maintenance of
concrete and other fabric
• Purpose – long lasting strategies for concrete.
• Dr. Nutt worked for the structural engineering helped to focus
the areas
for concrete conservation.
Roof Shells:
• All the roof shapes are derived from the single sphere, which
shares the common
radius.
• The design solution for the shells was a major feat by ultzon
and ove Arup & partners.
• Intensive efforts were made to hold self sustaining without
reinforcement
Structural estimate
Roof Pedestals:
• Roof pedestals are steel reinforced concrete structures at the

4. base of the roof
sails, exposed to natural elements.
• Due to rainwater runoff, erosion and biological growth can be
noticed.
• Protective coatings and other measures became inefficient.
• Pedestals became high heritage significance.
Broad walks:
• There are 3 types of broad walks:
Northern broad walk
Western broad walk
Eastern broad walk
• Western and Northern broad walks rest on steel
reinforcement concrete piers. These piers are embedded
into harbor floor.
• Granite aggregate slabs used to clad the broad walks.
Podium:
• Its construction became an engineering event.
• Purpose – continuous reinforced concrete which rises
from the ground and overlooks the harbor.
Structural estimate
Underground loading docks:
• There is an underground loading docks under
the covered concourse accessed through tunnel
entry from the south-western side of the

5. forecourt.
• Loading equipment, barriers are painted in
bright yellow for indication.
Glass wall:
• Glass wall – an engineering achievement.
• The construction of glass wall took 8 years to
complete.
• Extensive research was conducted to test the
limits of glass wall i.ie load bearing.
Structural estimate
Tolerance of change reference to the ability to adjust changes in
structural elements.
1 = Low tolerance
2 = Moderate tolerance
3 = High tolerance
Tolerance for change
ELEMENT TOLERANCE FOR CHANGE FURTHER
CONSIDERATIONS
Form Fabric Function Location
ROOF SHELLS
Glazed tiles 1 1 1 1 Replacement and maintenance should be
done where necessary.

6. Tile lids 1 1 1 1 Maintenance and replacement of tile lids are
done at necessary
places.
Glass walls and supporting
structure
2 2 1 1 Minor modifications are permitted instead of
replacement.
Nose lights on shells Intrusive
LOWER CONCOURSE
Paving, steps and walls of
solid granite
2 2 1 2 Surface finishes of the materials are worth retaining.
Seawall footpath of granite
setts
3 2 1 2 Material may require reappraisal to match repaved
forecourt.
Louvered circular ceiling lights 1 2 1 1 Should be retained as a
part of the original design.
Structural estimate
Element TOLERANCE FOR CHANGE Further considerations
Form Fabric Function Location

7. Podium
Monumental steps 1 1 1 1 Configurations in Utzon’s approach
sequence are more
important. Retain unaltered.
Bronze framed glass to openings 2 1 1 2 For alteration, use the
bronze metal.
Added acrylic panels to lower part of
guardrails
Intrusive Address safety issues for exploring the alterations.
Broad walk
Large-scale precast granite seawall
skirting panels
2 1 1 1 Individual precast units can be change but the bottom
panels
must be retained.
Supporting pile structure 3 3 1 2 Broad walk structural function
is essential.
Marquee function hall Intrusive Remove entirely.
Underground loading dock
Lifts to Joan Sutherland Theatre
scenery dock and concert hall
backstage
3 3 1 1 Critical function.

8. Basement offices 3 3 3 2 Ideal location for contractor offices
and facilities.
Service and plant areas 3 3 2 2 Operational efficiency is
important.
Structural estimate
Engineering management case study ----------- (Sydney
opera house)
1. This is a group work of 5 people
2. Each member has selected each sector on Sydney opera house
like
And need to work on only engineering activity not history.
Previously, i have failed in 1st
assignment because I have submitted on history like what they
have done.

9. 3. For my previous assignment I have done my part on
STRUCTUAL ENGINEERING and given
presentation
4. Prof. Given suggestion to propose this project by
implementation with heritage buildings in
Australia
5. How the building structural changes are done according to
heritage buildings
how engineering activities going on in Sydney opera house
according to heritage buildings (we
need to focus only on engineering activity not any history)
6. I need to submit 2 reports , one is for group work ( my part
on structural engineering) which is
1000 words and for individual submission 1500 words
7. Just for reference I have attached my previous presentation
8. This assignment weighs for 60% and 2 credit subject ( very
important)
9. Please write in professional
thank you