building construction Paper 3 WASSCE (PC), 2016

Question 1

 

  • SPECIFICATIONS

    FOUNDATION:       675 x 225 concrete strip foundation laid to a depth of 900 mm
    below the ground level.

    FLOOR:                 Earth filling.
                                  Hardcore 200
                                  Concrete slab 150.

                                      Motar  screed 25.

     

    WALLS:                    All walls are 225 sandcrete hollow blocks with 12 mortar rendering on both sides.

    DOORS:                     D1 – 1200 x 2100 glazed metal door.            
                                        D2 – 900 x 2100 flush door with 100 x 75 hardwood timber frame.
    D3 – 750 x 2100 flush wooden door with 100 x 75 timber frame.

    WINDOWS:              All windows are glazed aluminium sliding type.

    W1 – 1500 x 1200
    W2 – 600 x 600 

    BEAMS/LINTELS/
    COLUMNS:                225 x 225 reinforced concrete.

    ROOF:                       Gable end  roof with  aluminium roofing sheet.
    Eaves projection 750.
    Pitch    - 15º
    Height from  floor to ceiling – 3000.

     

    To a scale of 1:50, draw the detailed section A – A from the foundation to
    the roof.

     

  • Observation

     

    A good number of candidates did well by showing:

    •  subtructural walls;
    • solid ground floor elements;
    • windows on section;
    • timber roof members.

    However, some of them failed to:
                -     draw the foundation footing properly;
                -     construct geometrically, the semi – circular arch in elevation;
                -     indicate the ground level;
                -     label the roof members.

    The expected response to  question 1 is as given below:

    NO IMAGE AVAILABLE