BCE
Page 1: Introduction to Basic Infrastructure Services
16.0 Introduction
Basic infrastructure services are essential for the proper functioning of buildings, which include:
Ventilation
Lighting
Thermal insulation
Soundproofing
Air conditioning
Vertical transportation
Plumbing
Firefighting equipment
Vertical transportation is crucial in multistoried buildings for traffic circulation during normal use and emergencies.
Includes staircases, ramps, elevators/lifts, and escalators.
MEP (Mechanical, Electrical, and Plumbing) and HVAC (Heating, Ventilation, and Air Conditioning) will be discussed further.
Page 2: Mechanical, Electrical, and Plumbing (MEP)
16.1 MEP
MEP refers to the integrated systems of building design and construction.
Mechanical Systems:
Primarily HVAC systems but also includes transport systems like lifts.
Regulates internal temperatures and humidity.
Electrical Systems:
Includes power supply, lighting, control systems, telecommunication systems, security systems, and alarm systems.
Plumbing Systems:
Involves the movement of fluids through pipes, valves, and fixtures.
Used for:
Potable water supply
Water treatment and recovery
Drainage systems
Waste removal
Fuel gas piping
Page 3: HVAC Systems
16.2 HVAC
HVAC systems provide comfort by regulating temperature and maintaining indoor air quality (IAQ).
The main objectives are:
Ensure safe and comfortable environments
Control temperatures and humidity levels
Heating:
Generating heat through central heating systems and transferring it via pipes.
Ventilation:
Exchanging or replacing air to maintain air quality.
Controlled by mechanical (using air-handling units) or natural means (via windows).
Page 4: Air Conditioning
Air Conditioning and its Purposes
Air conditioning controls temperature, humidity, and air quality.
Purposes include:
Maintain occupant comfort
Preserve product quality in industrial processes
Enhance atmospheric conditions in commercial buildings
16.2.2 Integrated HVAC Approaches
Modern HVAC systems combine various functions into more energy-efficient designs.
Page 5: Classification of HVAC Systems
16.2.3 Classification
Two classifications:
Central Systems:
Centralizes primary equipment for the entire building.
Decentralized/Local Systems:
Equipment serves specific building zones.
Design criteria depend on equipment type and location.
Page 6: Elevators and Lifts
16.3 Elevators or Lifts
Designed for vertical transport of people or materials.
Used in buildings with more than three stories.
Types:
Electric Traction Elevators:
Used in tall buildings, powered by ropes and motors.
Hydraulic Elevators:
Used in low-rise buildings, operated by pistons.
Page 7: Ramps
16.4 Ramps
Sloping surfaces for easy connectivity between floors.
Significant for accessibility.
Slope typically 1:12 for wheelchair access.
Must have non-slip surfaces and be designed for live loads of at least 4 KN/m².
Page 8: Escalators
16.5 Escalators
Continuous stairways for transporting passengers efficiently.
Common at commercial centers and airports.
Components include steel frames and motor-driven systems.
Can operate in both upward and downward directions with standard slopes of 30°.
Page 9: Fire Safety for Buildings
16.6 Fire Safety
Aim to protect occupants and prevent property damage.
Minimum fire safety equipment is mandated by law (NBC).
Key regulations include:
Sufficient fireway around buildings
Non-combustible materials for construction
Emergency power supply systems
Page 10: Fixed Fire Extinguishing Systems
16.5.1 Fixed Systems
Consist of various installations such as:
Hydrant systems
Automatic sprinkler systems
CO2 and foam-based systems
NOC from fire department required for building approval.
Page 11: Green Buildings
Chapter 17: Overview
Green buildings focus on minimizing environmental impact through resource-efficient design.
Aim to retain natural habitats and reduce emissions.
Define green buildings as those that use less water and energy, generate less waste, and create healthier spaces.
Page 12: Green Building Materials
17.2 Materials
Green building materials minimize greenhouse gas emissions and resource consumption.
Include:
Earthen Materials: Adobe, cob for construction.
Engineered Wood: Reuse wood waste.
SIPs: Structural insulated panels for insulation.
Insulated Concrete Forms: Lightweight and thermal resistance.
Page 13: Additional Green Materials
Cordwood Walls: Use short round wood pieces consolidating walls.
Cellulose: Recycled paper product for insulation.
Page 14: More Green Insulation Options
Polyurethane: Spray foam insulation.
Natural Fiber: Cotton and wool fibers for insulation.
Fiberglass: Standard insulation material with soundproof properties.
Page 15: Innovative Building Materials
Timbercrete: Combines timber waste and concrete for insulation and fire resistance.
Straw Bale: Good insulation and fire resistance.
Ferrock: Uses recycled materials and absorbs CO2.
Slate/Stones: Long-lasting material with environmental benefits.
Page 16: Energy and Water Management
17.3 Systems for Efficiency
Focus on reducing energy and water consumption in buildings:
Energy Systems:
Use of solar energy and LED lighting.
Optimized HVAC systems
Water Management:
Water conservation and dual plumbing systems.
Page 17: Water Management in Green Buildings
17.3.2 Water Efficiency
Focus on minimal disruption in natural water flow and maximum use of harvested rainwater.
Greywater Recycling: Efficiently manages water use.
Water-efficient Toilets: Low consumption designs.
Page 18: Conclusion on Water Management
Optimization of plumbing reduces impact on natural water systems, emphasizing recycling during the building's operation.
Advanced Toilet Systems: Low water usage and composting options for sanitation.
Page 19: Review Questions
What are functions of MEP?
What are different types of elevators?
Explain ramp usage in buildings.
What are important guidelines for fire safety as per NBC?