The document discusses different types of building core configurations and their advantages and disadvantages. The main types are: - Central core - Located in the center, allows all windows to be used as office space but limits office depth. Requires perimeter access corridor. - Off-center core - Provides more flexibility but some offices further from core. Long access corridor required. - Exterior core - Leaves entire floor for tenant use but core takes up desirable window space. - Double core - Placed on east and west sides for buffer zones and natural ventilation. Provides more flexibility in floor plan layout. More costly for smaller buildings.

1. PLANNING AND LOCATING
SERVICE CORES
IN BUILDINGS
BUILDING SERVICES-2

2. • The central of arterial part of a multistory
building that integrates functions and
service needs for establishedoccupants.
• Such areas are normally composed of
toilet facilities, elevator banks, janitors’
closet, utilities,mechanical facilities,
smoke shafts and stair.
• Core also known as facade envelope is a
spatial element for load-bearinghigh-rise
building system.
• Tying the building together to
act as a unit
• To maximize flexibility in
layout
• As shear wall systems to
provide the necessary lateral
stability for the building
Resist lateral forces from
any direction
• Carries gravity loads
FUNCTION:DEFINITION:
• Electrical & Telephone
• Piping and risers
• Transportation
ELEMENTS:
• Fans room
• Toilets
• Elements

4. Core positions can be classified into three types
• Central core
• Single core
• Double core

5. Advantages :
• It allows all window space to be utilized as rental
office space.
• Permits offices to varyingdepth to receive natural
light.
• It is suitable in terms of access and in some cases
may be equidistantfrom all sides.
• Simplifies area division.
Disadvantage:
• The central interior location limits the depth of the
offices.
• It requires an access corridor around its perimeter.
Examples of the central core:
• Equitable BuildingPlace Victoria office Tower Alcoa
Building
Typology of Core
• central core

6. Typology of Core
• Off center core
Advantage:
• It permits all windows and the buildingperimeter
space to be used for offices.
• It has more flexibility depth and arrangementsof
spaces.
• This can be particularly desirable where large
open spaces are required
Disadvantages:
• Some problems of accessibilityThis is less
suitable for the distant spaces and the corners of
the building.
• A long corridor for accessibilityis required.
• Less flexibility of tenant (rentel) distribution

7. Typology of Core
• Exterior core
Advantages:
• It leaves the entire floor area of the building
available for tenant use.
• The core does not complicate the floor plan either
functionally of structurally.
• Maximum flexibility is achievedwith respect to
tenant distributionof office depth and plan layout.
Disadvantages:
• In case of multi-tenant occupancy, the core
requires a long access corridor thus the flexibility
of tenant distributionis reduced.
• The core occupied desirable window spaces, so
that, the offices immediatelyadjacent to the core
may not receive any natural light.

8. Typology of Core
• Double core
Advantage:
• The double cores are placed on the hot sides (east,
west) thus, provide buffer zones, and minimum
air-conditioningis required.
• The window openings run through north and
south. Lift lobbies, stairways and toilets are
naturally ventilated and a view out is possible.
• The double core has more flexibility in floor area
division.
Disadvantages:
• If the buildingis not that big, then it becomes
costly.

9. DUCT & CORE