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CONSTRUCTION 3
Introduction to Building Construction
Question | Answer |
---|---|
Topics under Building Construction | Domestic Drainage Foundations Walls Roofs Floors |
Define Effluent | Defined as that wich flows out |
3 main Forms of Effluent | Surface Water Sub-Soil water Foul or Soil Water |
What is a Drain? | A means of Conveying surface water or foul water below ground level |
What is a sewer | Same as Drain only it collects the discharge from a no of drains and conveys it to the final outfall. |
Basic Principles of Drainage | to provide drainage that is simple efficient and economic by laying the drains at a gradient there must be an access point at a junction. to provide a drainage system that complies with part h of the buiding regulations. |
Types of Drainage Systems | 3 main types Seperate system - surface water discharge and foul water discharge are seperate. Combined system - both are together, so it is cheap and simple to make. Partially Seperate system - surface water adn then foul water and some surface water. |
What is a Soakaway? | These provide a means for collecting and controlling the seepage of rainwater into surrounding granular subsoils. |
Picture of a Soakaway. name the parts. | Cover inlet natural base concrete footing Cover slab Granular backfill |
Design and selection of foundations depends on two factors name them | Total load of building nature and bearing capacity of the soil. |
2 Major Groups of Foundations. Name them | Shallow Foundations Deep Foundations. |
What is a Shallow Foundation and give Types of Shallow Foundations? | These are found near to the finished ground surface.Simple spread foundations/ footings Concrete Pad/ Strip foundations or both Raft foundations. |
What is a Deep Foundation and give Types of Deep Foundations ? | these are found too deeply below the finished ground surface at depths greater than 3m.Pile Foundations |
What is a Pad Foundation used for? | Used to support individual point loads. |
What is a Raft Fuondation used for? | it is used to spread the load from a structure over a large area |
What is a Pile Foundation Used for? | Concrete or steel columns placed in the ground and are used whent he upper layers of soil are too weak. |
Name the 3 types of walls? | Solid brick walls - problem is insulation Cavity walls - have better thermal insulation and weather resistance properties than solid bricks or block wall. used in domestic buildings. Masonry walls- flush, struck or weathered, Bucket handle, Recessed. |
Types of Bonds? | English garden wall bonds Flemish garden wall bonds |
Types of floors? | Solid floors - ground floors Suspended floors - upper floors. |
Types of concrete floors? | Insitu concrete slabs Pre-cat concrete slabs Beam and Block. |
Functions of a concrete floor | provide a level surface with sufficient strength to support imposed loads. Exclude the passage of water to the interior of the building. provide resistance to heat loss throught he floor. |
Timber floor components | Skirting, Exterior wall, Floor boards, Joist wall plate, Damp proof course, Bottom plate, Plaster board, Termite Capping Joint hangers, Struttings or Noggings. |
Name two types of roofs | Pitch Roofs - A cut roof, a truss roof. Flat roofs - they are convenient and easy to Construct. - Built up felt roofing, Asphalt roofing Sigle Ply roofing. |
What is single ply roofing | they use a single polymeric membrane covering to provide a weather proof barrier. they are durable, have good appearance and ease of installation. |