Krisp It Park Case Study

CASE STUDY KRISP IT PARK ARCHITECT : PADGRO

KRISP IT Park is Chennai leading and most modern business space designed for companies that require a work environment that inspires their employees. The building is stilted to stand a distance of 4.4m above the ground. The landscaping gives an attractive environment for entertaining and relaxing.

The ground level is used for parking.

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Location- 942 , vandalur-kelambakkam road , kizhakottayur , chennai. From vandalur zoo - 9.7km From kelambakkam - 9.5km Nearest railway station - 11.7km Bus stop-opposite to site

Key plan

SITE PLAN

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Total site area – 10117sq.m Built up area - 10904sq.m Plot coverage – 42% FSI Allowed – 1.75 FSI Achieved - 1.07 Entrance road width – 16m

SITE ZONING

PARKING: Main Building

Area In Sq.m

Area in Sq.Ft

Lower Basement

1,809.94

19,443.74

Upper Basement

1,8904.94

19,443.74

• Both the basements have been reserved for parking of two/ four wheeler parking. • Adequate space is available to provide 40 cars per basement. Type of Parking Space

Length(m)

Width (m)

Minimum Head Room(m)

Private Cars and Taxis

5

2.5

2.4

Light Buses

8

3

3.3

Parking space zoning:

PARKING PLAN

Parking Space : • Stilt Parking has Space to park 40 Cars and as well 40 Cars • Clear span of column is 7.44m.

• • • • •

Ceiling height : 2.85 Clear ceiling Height is 2.15m. 6m Wide drive way is Provided which is used as One-Way here. 6.23m wide entrance. Surface parking for 3 buses and 10 cars is Provided.

Feasibility

Inference • Stilt Parking is ventilated naturally and Basement-1 is ventilated through the Entry/Exit Opening • There is no Separate space to park Two Wheelers. ACTUAL NO. OF CARS • 40

STANDARDS • 36

Form It is spherical in shape with ribs of concrete and aluminium composite panels which are interspersed to form a break in the continuity in the spherical structure.

SPATIAL ANALYSIS

GROUND FLOOR PLAN

GROUND FLOOR ZONING

NORTH WING (SERVICE CORE)

WEST WING

WAITING

EAST WING

LOBBY

ENTRANCE

GROUND FLOOR ENTRY

TOTAL AREA : 1736.88 sqm

 WORKSTATION-133

LOBBY

 MANAGER ROOM -5  TEAM LEADER -13

WEST WING

SPACES • WORKSTATION-91 • MANAGER ROOM • TEAMLEADER • DISCUSSION AREA

EAST WING

SPACES • LOUNGE • TRAINING HALL • CHIEF EXECUTIVE • MANAGER • WORKSTATION-42 • DISCUSSION AREA • TEAM LEADER

TOTAL NO OF WORKSTATIONS IN EACH FLOOR ACTUAL NUMBER •133

STANDARDS •60%min per floor

WORKSPACE MAIN AISLE

ACTUAL NUMBER STANDARDS

•0.10m •0.15m

INTERMEDIATE AISLE •0.12 •0.12

SECONDARY AISLE •0.7m •0.9m

MANAGER ROOM

SERVICE CORE

ACTUAL AREA

ACTUAL PERCENTAGE

• 10sqm-3 people

• 13%

STANDARDS

STANDARDS

• 14sqm-3people

• 20%

SEGREGATION OF SPACES LOBBY TOTAL NO OF EMPLOYEES IN BOTH WINGS (PER FLOOR) : 250 WEST WING

EAST WING

SERVICE CORE

GROUND FLOOR SERVICE CORE CAPACITY (PER FLOOR):150     

BREAK OUT AREA HUB ROOM ELECTRICAL ROOM:2 TOILETS FIRE ESCAPE STAIRCASE

CONFERENCE HALL

TYPICAL FLOORS

TYPICAL FLOOR (1,2,3 FLOOR) SERVICE CORE

WEST WING

CONFERENCE HALL

LOBBY

EAST WING

FIRST FLOOR

TOTAL AREA:1665.31sqm

 Locker room  Team leader:9  Manager:3  Workstation:182

FOURTH FLOOR ROOM

SERVICE CORE

LIVING/ DINING

ROOM

LIVING /DINING LOBBY

CONFERENCE

DINING LOUNGE

TERRACE

TERRACE

Semi private

Fourth floor Private and semi private

Private and semi private

Semi public and semi private

FOURTH FLOOR TOATAL AREA 581.05sqm • • • • • • • •

CONFERENCE DINING ROOM:2 LIVING:2 LOUNGE LOBBY SERVICE CORE TERRACE

WORKSPACE

TERRACE

VARIOUS SPACES

MANAGER ROOM

DISCUSSION AREA

TEAM LEADER SPACE

WORKSTATION

ANALYSIS zoning 

Workstation is split into two equal components in east wing to navigate different spaces in each component.

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In ground floor the entry terminate to two lobby spaces (lobby 1&2) were lobby 2 split radially into sub spaces in order to bring movement in circulation.

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In fourth floor, the entire space is alloted for foreign visitors.



Service core is placed in north wing- average capacity 150 people in each floor.

Organizing structure 

The distance between each cubicle is 1m space occupied per person-walkway.



Teamleader space is alloted at the centre of cubicle an area of 3sqm.

AMENITY BUILDING CHILLER PLANT

TOTAL AREA:706sqm  KITCHEN  DINING  GYM  LOBBY  PATIO  LAWN

G+3 FLOORS

INFERENCE  As zoning of spaces is in radial manner,equal distribution of spaces in each floor.  The entry to fourth floor is accessed only by fire exit staircase.  Maintenance area can be accessed through main lobby space(private area).  Arrangement of cubicles is in the form of maze and distance between them is 1m.  The shear wall projected from each wing has been used for electrical and plumbing services.  Toilets are placed only in north wing which is a disadvantage.

MATERIAL

EXTERNAL SKIN FAÇADE: Curtain wall system Features : • Double glazing. • lateral and vertical resistance to wind. • thermal, acoustic and fire resisting properties. • Elimination of water ingress.

BENEFITS: • A variety of colours and surface textures is possible • Lightweight facades minimise the loads on the supporting structure • Steel glazing systems can be used for visual effect in tall entrance areas and atria • Steel is non-combustible and robust to damage in façade panels • A high level of thermal and acoustic insulation can be provided.

Stainless steel brackets

Metal infill panels

CURVED FINS: • They are made of Reinforced Concrete. • Act as perimeter columns of the building. • The interior is hollow which is used as shafts for major vertical runs of mechanical and electrical distribution lines. • Aesthetically they structure the building in a spherical form.

WINDOWS: • Glass windows are double walled with vacuum in between for better temperature and acoustic control. • They are non-operable windows.

INTERIOR Workstation :

Armstrong 2*2 sheet

wooden panelling

Vinyl flooring

Conference room : wooden panelling

Vinyl flooring

Acoustic PROOF PANELS Acoustic panelling is given on the false ceiling , it absorbs sound .

Footing:

STRUCTURE

PLAN

• Footing size: 5.05*5.05m • Clear cover: 60mm • Type: slopped footing • Column size: 1*1m • Clear cover: 50mm • Type: Square

• Column spacing: 8.5m c/c • Height of substructure: 3.5m • Existing gravel and hard soil – levelled and compacted.

Footing detail of IT park:

REINFORCEMENT DETAIL: • LINTEL BEAM: Lintel beam width: 300mm

RC suspenders are placed on the lintel beam to carry the roof load. Bars are anchored into the RC wall by 150mm using chemical anchors to make the resulting bond stronger.

RC Structure: • The entire structure is built of Reinforced concrete. • Grade beam is used to distribute the weight of the building into the foundation.

• The building possess good earthquake resistance. • Fire and weather resistance of reinforced concrete is fair. • The maintenance cost of reinforced concrete is very low.

Grade slab and beam layout

Cs of GB (perimeter)

SERVICES

Service area is located in the North wing – back side of the building.

HVAC •

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Centralized Air conditioning facility with a capacity of 300 TR (Two units of One each with 150 TR) is provided. Each floor has been provided with two Air handling units one each for eastern and western wing. Certain essential services like UPS room Server Rooms have been provided with independent air conditioners. Chiller plants are located on the terrace of the service building in order to avoid noise The chiller plant delivers cooled water to the AHU Unit in each floor. The cooled water is then distributed to the spaces via ducts.

Chiller plants

Location of AHU Room

Type : Chilled water central plant.

Toilets • • • •

The toilets are located at each floor in the break out spaces. Dadoing up to 7 ft height, Isolated Exhaust, Hand wash with sensor facility. Separate toilet facility physically handicapped one each for women and men in each floor The gents toilet and ladies toilet are kept at each side of the break out space.

Gents toilet • • • •

4 Water closets (1110mm X 1600mm) with 750mm width door 6 Urinals Handwash 3nos 1 WC with Handwash for Disabled people

Standard Requirements : • 8 WC • 8 Wash basins • 7 Urinals

Ladies toilet: • 5 WC (1110 X 1600mm )- 750MM door width • 3 Wash basin • 1 WC with Wash basin for Disabled (2870 x 1465mm) with 1200 MM door width. • Maintenance space for Janitor

Standard Requirements • 14 WC • 8 Wash basins

Electrical Services

Total Connected Load : Supply Voltage with connected maximum demand of 800 KVA Transformer Capacity: Two numbers of transformers each with a capacity of 1000 KVA Diesel Generator Capacity: One number 1010 KVA DG Set installed and functioning normally. Another 40 KVA DG Set is installed to cater to the minimum load during off days. The DG set building is completely sound proofed with acoustic materials.

Function of Electrical distribution

Cable tray layout

Ground floor

PLUMBING Source: Ground water is the source of water supply. Four bore wells – 200ft depth.

Sum Capacity: 360,000 Litres. Tank partition has been made to store water as Fire Hydrant. Overhead Tank Capacity: 60,000 Litres Service Water : Softened water has been provided for the use in the entire IT Park except for drinking water purposes. Drinking Water :Reverse Osmosis plant has been installed for supplying potable water Sewage system :A comprehensive sewage water treatment plant has been installed. Treated water from the sewage system is used for irrigating lawn and gardens

SYSTEM

Water Treatment Plant Raw water tank contains underground water. Capacity : 80,000 lit Soft water tank contains filtered underground water which then used for drinking purpose. Capacity : 80,000 lit Fire tank distributes water to fire fighting systems.

Capacity : 2,15,000 lit

MOTOR

PLANTS

Fire Fighting systems The IT park comprises of various fire safety features : • Fire Hydrants located in the perimeter of the building complex. (4 along the entrance of the building ) • Automated sprinkler systems is provided in the basements, placed at intervals of 3.5m. • Fire extinguishers placed at 21m from each other inside workstations (ABC Type extinguisher) • In Break out space a co2-type extinguisher and one ABC-type fire extinguisher are placed in each floor. • Smoke detectors are placed at a distance of 8m from each other.

Smoke detectors in work station

Overhead tank distributes water to reverse osmosis system and Fire pipe

FIRE SHAFT

• Wet riser - the main outlet is sited within the ventilated lobby. The stair case is located in north wing. Separated from office area. Egress towards back side of the building.

Fire escape staircase

STEP DETAIL

The staircase acts as the only egress of the building

Step width – 1.2m Tread – 0.3m Riser - 0.14 m to 0.15m

Check list for fire safety • Building above 15m height shall have compartmentalisation with each compartment area not exceeding 750sqm • False ceiling panels must have half an hour fire rating. • Fire hydrant should be placed at a distance of 30m from each other. • Sub station, DG room must be constructed of fire resisting material. • Electric cables shall be laid in separate shafts. • Size of refuge area – 15sqm (minimum) as cantilever. • Floor cut out needed for wet risers are 250*250mm (min) in each floor and shall be in pump.

Elevator location

SERVICE LIFT

PASSENGER LIFT

Passenger Lift : Two Lifts with a carrying capacity 15 persons has been provided near the main entrance / lobby has been provided from the basement to third floor of the building.

Lift size: 2.2*2.5m Lift car: 12*2m

Machine room

Lifts at entrance

Performance:

• • • •

Easy access Proximity to ingress Reliable emergency equipment. Comfortable lighting and visual travel direction as one side of life faces the façade.

SERVICE LIFT: A Service lift with a carrying capacity of 8 persons at the rear end of the building near break out area. This lift operates from basement to terrace. • It is located in the service core near Breakout area. • Lift size: 1.9*1.6m • Door width: 1.1m

SUSTAINABILITY

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SITE FEATURES •

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The blowing wind is cooled by the waterbody in front of the entrance before it enters the building. This results in the natural cooling of the building interior. The light green landscapes reflect the heat back thus cooling the surrounding site and reducing the heat.

Main entrance Landscape

Water body

WATER EFFICIENCY

- Irrigation line

SEWAGE TREATMENT PLANT

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The recycled water from the treatment plant is used for the irrigation purposes. The irrigation lines have openings at regular intervals to let the water into the green land.

Sewage Treatment plants

ENERGY EFFICIENCY LIGHTING • •

LED lights are majorly used in the building. The workspaces and other office areas are all lit by LED lights.

AIR CONDITIONING The whole office interior is centralized with air conditioner. Two units, each of 150TR (Ton of Refrigeration) are used. The air conditioner has a 5-STAR rating.

EER stands for Energy Efficiency Ratio. EER is calculated By : Cooling Capacity= Watts / Power Consumption (Watts)

EER (W/W) Star Rating

Maximum

Minimum

1 Star

2.50

2.69

2 Star

2.70

2.89

3 Star

2.90

3.09

4 Star

3.10

2.29

5 Star

3.30

ROOF GARDENING •

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Rooftop gardening can help improve the quality of the atmosphere. The plants absorb carbon dioxide in the air and convert it into oxygen reducing the air pollution. The rooftop plants provide natural insulation to rooftops by reflecting light and heat thus reducing the need for heating or cooling mechanisms.

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The insulation from rooftop gardens can also block outdoor noises. They can potentially protect rooftops from damage and deterioration. The plants in rooftop gardens can aid in reducing “the heat island effect”. Prolongs the life of waterproofing membranes