-General Information:

Building Name Hearst Tower -Design Concept:

Building Location Midtown Manhattan, New York City, New York, USA #-It is a glazed tower which rises from the interior of the building art deco 1928, producing a big contrast. Just left of the old
Area 79,500m² building facades that were preserved intact, while the interior is emptied, leaving room for the new structure and creating an
Building Type Skyscraper urban plaza.
Project Type Office Building
Height 182m
Total Building Costs 50 crores USD $6250/office square meter
#-Conception: The new building was conceived as a striking glass and steel skyscrapers that enshrines a number of milestones
Architectural style High-tech architecture related to the environment and design. The Hearst Tower became true pioneer in environmental sustainability, after being
Owner Hearst Corporation; Tishman Speyer Properties declared the first offices building “green” of the City of New York.
Building Architect
• Design = Foster + Partners
• Architect of Record = Adamson Associates
Construction Start 2003
Completion 2006
Floor-to-floor-height 4.11meters
Elevators 21
Table1 : General Information

ADDITION OF A NEW
OLD SKYSCRAPER NEW STRUCTURE SKYSCRAPER

Plan of Lobby Level

Concept Elevation
-The six-story base of the headquarters building was commissioned by the
founder, William Randolph Hearst, and awarded to the architect Joseph Urban. The -Location
building was completed in 1928 at a cost of $2 million and contained
40,000 square feet (3,700 m2). The new tower addition was completed nearly eighty
years later, and 2,000 Hearst employees moved in on June 26, 2006.
-The tower—designed by the architect Norman Foster, structurally engineered
by WSP Cantor Seinuk, and constructed by Turner Construction—is 46 stories tall,
standing 182 meters (597 feet) with 80,000 square metres (860,000 square feet) of
office space.

Plan Of Low Rise Offices In Hearst Tower

•AN IMPORTANT DESIGN SPECIFICATION WAS THE PRESERVATION OF THE

EXISTING LANDMARK FACADE AND ITS INCORPORATION INTO THE NEW
TOWER DESIGN.

Footprint of Hearst Tower Elevation Of Hearst Tower Sectional Elevation

AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.1
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
 Waterfall Good Housekeeping Institute BUILDING TECHNOLOGY

WATER CIRCULATION Water feature GOING UP

Hearst Tower Lobby Level

-Spaces:
#-Once entered, the aggressiveness of the exterior contrasts with the interior space.
#-While the original building facades are intact, the six-story interior creating a
single space were eliminated. What was once raw concrete is now finished in a soft
beige, an austere decor for this inner city square, where the difference between old
and new are blurred.
-By recycling rainwater saves 6.4 million litres Located on the 29th floor, the laboratory evaluation of consumer products
#-The basement Art Deco stands out for its structure fluted columns and statues annually that would otherwise be wasted. Good Housekeeping magazine that since 1901 consumer products Exterior Lighting controls by Lutron
depicting allegories of music, art, commerce and industry, framing square. # -The water cools the place in summer and subjected to rigorous scientific testing, giving them the best products with
moisten in winter. the famous label “Good Housekeeping Promises” is located.
Atrium reception

Café57 The CLUB

CURTAIN WALL MULTIFACETED

Atrium in Hearst tower Café57: The dining area offers 380 On the 14th floor gym with 836m and fully equipped is available to
stylishly designed seats for employees of Hearst.
#-From the distribution point of view the plaza and atrium on the ground floor,
employees and guests.
three floors, leads to all other parts of the building and is flanked by an
auditorium, lobby and spaces that house catering services.
#-Natural elements and quiet atrium contrast with the bustle of the street.

The CLUB

AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.2
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
-Foundation
^ Climate-Control System, Reflective Pavers, Low-E Glazing & Sensors
The boring tests indicated a sharp drop in the elevation of the rock at the site. The rock elevation
varied from a few feet to 30 feet below the basement level. Therefore, almost half of the tower is The climate control system incorporates “free air-cooling”, using filtered outside air
supported on spread footing on rock and the other half on caissons of equivalent strength embedded without temperature adjustment 75 percent of the year. Reflective pavers are utilized to
into rock below. increase energy efficiency by reducing solar absorption in the in roof, while low-E
coated glass ushers in daylight without heat-producing radiation. Sensors are used
-Structure throughout the building to conserve both electricity and water.
#-The building utilizes a composite steel and concrete floor with 40- foot interior column free span
for open office planning. The tower has two distinct zones. The office zone starts 110 feet above
street level at the 10th floor rising to the 44th level.
#-Below the 10th floor, the building houses the entrance at street level and lobby, cafeteria and
auditorium at the 3rd floor with an approximately 80-foot high interior open space.
#-At the seventh floor elevation, the tower is connected to the existing landmark façade by a
horizontal skylight system spanning approximately 40 feet from the tower columns to the existing
façade. Nodes

Diagrid) System = Dia (Diagonal+ Grid

Thermal Comfort In Hearst Tower

COLUMNS

Cost Savings

#-The structure below the 10th floor is designed to respond to the large unbraced height by using a mega
column system around the perimeter of the tower footprint, supporting the tower perimeter structure. Mega
columns are primarily made out of built-up steel tube sections and strategically filled with concrete. In order Yearly Steam Cost for Electric Chillers/Steam Heat
#-The diagrids form a network of a triangulated truss system inter- connecting all four faces of the to create the interior open space, two of the tower interior columns are also transferred out to the perimeter of
the tower via a series of super diagonals below the 10th floor. Daylight sensors are also used in
tower, thus creating a highly efficient tube structure.
conjunction with the lighting controls to
#-The diagrid nodes are formed by the intersection of the diagonal and horizontal elements. reduce energy use and maximize the use of
#-Additional interior super-diagonals are provided below the 10th floor to assist the composite core wall
These nodes are one of the key design elements both structurally and architecturally. natural light.
system for general stability. Mega columns are continued down to the foundation.
#-20% less than a conventional steel frame.

Wire and Conduit Cost Table

AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.3
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
-FOUNDATION
The boring tests indicated a sharp drop in the elevation of the rock at the site. The rock elevation varied from a
few feet to 30 feet below the basement level. Therefore, almost half of the tower is supported on spread footing
on rock and the other half on caissons of equivalent strength embedded into rock below.

-STRUCTURE
#-The building utilizes a composite steel and concrete floor with 40- foot interior column free span for open office planning.
Diagrid System = Dia (Diagonal+ Grid
•No vertical steel beams on the building’s exterior, around the perimeter
• affording corner views, not possible in typical buildings
• • Inherent lateral stiffness and strength of the diagrid provides a significant advantage for the general stability
requirement for the tower under gravity, wind, and seismic loading
• Highly efficient structural system consuming 20% less steel material (approximately 2000 tons of steel) in
comparison to conventional moment frame structures

MEGA COLUMNS
•It was designed to respond the
high loads and large unbraced
length.
•Transefer load that come from
the triangular diagonal grid
members to the ground.
•26 degree super diagonal slope.

STEEL CONNECTION

•Types of connection
•Beam-beam connection
•Beam-column connection
•Column base plate connection
NODES
The nodes are all prefabricated and
installed at the site using all bolted
connections.

COMPOSITE FLOOR SLABS Wire and Conduit Cost Table

slab thickness -1.25mm
Full depth 295mm
The concrete that surrounds the beam provides composite action
without the need for shear studs. AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.3
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
 AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.3
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
 AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.3
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
-Foundation
^ Climate-Control System, Reflective Pavers, Low-E Glazing & Sensors
The boring tests indicated a sharp drop in the elevation of the rock at the site. The rock elevation
varied from a few feet to 30 feet below the basement level. Therefore, almost half of the tower is The climate control system incorporates “free air-cooling”, using filtered outside air
supported on spread footing on rock and the other half on caissons of equivalent strength embedded without temperature adjustment 75 percent of the year. Reflective pavers are utilized to
into rock below. increase energy efficiency by reducing solar absorption in the in roof, while low-E
coated glass ushers in daylight without heat-producing radiation. Sensors are used
-Structure throughout the building to conserve both electricity and water.
#-The building utilizes a composite steel and concrete floor with 40- foot interior column free span
for open office planning. The tower has two distinct zones. The office zone starts 110 feet above
street level at the 10th floor rising to the 44th level.
#-Below the 10th floor, the building houses the entrance at street level and lobby, cafeteria and
auditorium at the 3rd floor with an approximately 80-foot high interior open space.
#-At the seventh floor elevation, the tower is connected to the existing landmark façade by a
horizontal skylight system spanning approximately 40 feet from the tower columns to the existing
façade. Nodes

Diagrid) System = Dia (Diagonal+ Grid

Thermal Comfort In Hearst Tower

COLUMNS

Cost Savings

#-The structure below the 10th floor is designed to respond to the large unbraced height by using a mega
column system around the perimeter of the tower footprint, supporting the tower perimeter structure. Mega
columns are primarily made out of built-up steel tube sections and strategically filled with concrete. In order Yearly Steam Cost for Electric Chillers/Steam Heat
#-The diagrids form a network of a triangulated truss system inter- connecting all four faces of the to create the interior open space, two of the tower interior columns are also transferred out to the perimeter of
the tower via a series of super diagonals below the 10th floor. Daylight sensors are also used in
tower, thus creating a highly efficient tube structure.
conjunction with the lighting controls to
#-The diagrid nodes are formed by the intersection of the diagonal and horizontal elements. reduce energy use and maximize the use of
#-Additional interior super-diagonals are provided below the 10th floor to assist the composite core wall
These nodes are one of the key design elements both structurally and architecturally. natural light.
system for general stability. Mega columns are continued down to the foundation.
#-20% less than a conventional steel frame.

Wire and Conduit Cost Table

AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.3
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018
 -Energy Efficiency
Energy-saving features in the tower include: -Conclusion
SUSTAINABILITY •Glass coating to reduce solar radiation and therefore cooling load - the glass has a special 'low-E' coating that allows for internal spaces to be flooded with
natural light while keeping out the invisible solar radiation that causes heat  First building in New York City to receive a LEED® Gold certification for
•A limestone atrium floor with embedded polyethylene tubing for circulating water for cooling in the summer and heating in the winter
•Sensors that control artificial light based on the amount of natural light New Construction™ - Commercial Interiors™
•Motion sensors to turn off lights and computers when an area is unoccupied
•High-efficiency heating and air-conditioning equipment that uses outside air for cooling and ventilation for 75% of the year  Diagrid frame contains roughly 20% less steel than would a conventional perimeter
•A roof that collects rainwater in a 14,000gal basement reclamation tank, which then replaces water lost to evaporation in the office air-conditioning system
and feeds into a pumping system to irrigate plantings and trees inside and outside of the building
frame, saving approximately 2,000 tons of steel
•The 'Icefall,' a two-storey waterfall that chills the ten-storey atrium, drawing off warm- season heat using rainwater from the roof  Each triangle in the diagrid is four stories tall, or 54 feet
•Few internal walls and low workstation partitions to maximise natural light
•Walls are coated with low-vapour paints  Over 90% of its structural steel contains recycled material
•Low-toxicity furniture, finishes and carpeting have content that is recycled or harvested from sustainable forests
•Concrete surfaces are treated with low-toxicity sealants  Daylight sensors control lighting and reduce energy use
 95% of office space has daylighting; 80% has views
 Over one mile of glass office fronts
 15 passenger elevators utilizing the Schindler Miconic 10 destination dispatch
vertical transportation system
 High-speed fiber-optic data transmission; fully Wi-Fi enabled
 Nine-story atrium lobby with a six-story fresco, Riverlines, and a three-story glass
water feature.

Sustainability
 LEED® Gold for Existing Buildings™
 LEED® for Existing Building: Platinum
 In 2011, Hearst Tower achieved an ENERGY STAR® score of 88. Efforts are now
under way to improve the score further by ensuring that all possible measures are
INDOOR ENVIRONMENTAL QUALITY being taken to reduce energy consumption.

Low-e glass allows for internal spaces to be flooded with natural light
#-Site + Climate: The building envelope was designed to limit glare from low angle sun during the early morning while keeping out the invisible solar radiation that causes heat
and evenings.
MATERIAL & RESOURCES
#-Form + Massing: The massing was predetermined by the footprint of the existing Hearst building. The design of
the tower, sought to protect the existing podium, whilst extending the building with a distinctive new tower.

#-Passive Design: To minimize solar gain, the building envelope contains high performance low emission glass,
with integral roller blinds which can be used to reduce glare. The building is naturally overshadowed by the
surrounding buildings so large skylights were used at the podium level to bring daylight into the atrium space.

#-Environmental Systems: The atrium contains a radiant floor, a tempered water wall and temperature controlled
walls. In the office spaces, an economiser cycle on the AHUs provide fresh air ventilation for 75% of year.

#-Mobility + Connectivity: The design included an upgrade to the local subway station, and reinstated an entrance
within the building, giving employees direct access to public transport.

#-Materials + Waste: The diagrid structure uses 20 per cent less steel than a conventionally framed structure, and it Designated space for collection & 20% of materials manufactured regionally.
was built using 85 per cent recycled steel. Locally sourced materials are used throughout. storage of recycled materials

Separate collections of glass, plastic,
#-Water: Harvested rainwater from the roof is fed into a central tank and used for irrigation and to feed the water Using local resources saves energy metals, office paper, newspaper,
feature. This, alongside water efficient fixtures and fittings, has led to a 30% reduction in water usage compared to a cardboard, and organic waste.
typical building. Cardboard balers and aluminum can
 crushers can be used to further
#-Land + Ecology: The design ensured that all existing trees on site were protected, and to ensure their long term enhance the recycling program
vitality, they are now irrigated through the rainwater harvesting system.

AJAY , SHWETA
BMSA ADVANCE CONSTRUCTION AND TECHNIQUES
3-A
S.NO.4
AP-323 HEARST TOWER, MANHATTAN, NEW YORK
DATE: 26-11-2018