U N I T 3 – STAS 1434 - 83

figure 23 – The two floors of the given building from the principal face direction

figure 24 – The two floors of the given building from the secondary face direction

The plans for this dwelling can be represented in two ways and these are: both of plans, ground floor and the first floor plan, could be of the same part of the building (see figure 25a) or, the ground floor of the left part and placed symmetrical with this one, the first floor of the right part of it (see figure 25b).

a b

figure 25 – The two possibilities of cutting of a building, symmetrical to the middle wall to get its plans,

Ground Floor Plan and First Floor Plan

In the first case, it will be drawn the two plans like in figure 26.

figure 26 – Ground Floor Plan and First Floor Plan for a building, cut like in figure 25 a

figure 27 – Ground Floor Plan and First Floor Plan for a building, cut like in figure 25 b and represented symmetrically to the axis 3

For a building with several floors must be drawn as many plans as different floors the building has. For the identical floors it will be drawn one plan named current level plan and an entrance detail (see figure 28).

figure 28 – Current Floor Plan and Entrance Detail, for a building with several identically levels

It is recommended for you to choose first type of cutting.

STEPS FOR DRAWING OF THE GROUND AND FIRST FLOOR OF A BUILDING

The scale of the drawing is 1:50.

FIRST STEP

The drawing of the traced building axis

(see figure 67)

This building has some external structural walls, internal structural walls and internal non-structural walls. Every structural wall has an axis named 1, 2, 3, 4, 5, A, B and C.

So, for the left part of the building (see figure 29), the walls from axes A, C and 1 are external structural walls, the walls from B, 2 and 3 are internal structural walls.

The building was cut between axes 3 and 4 (see figure 29), to have the entire wall from axis 3 and a small part from the walls between axes 3 and 4.

figure 29 – Dwelling P+1

figure 30 – A2 paper sheet

In this step you have to draw the axes (1, 2, 3, A, B, and C) of the Ground Floor Plan in the left part of the paper sheet (see figure 30) and, again, the same axes, for the First Floor Plan, in the right part. For each step, it can be seen an example from another building on page no. (see figure).

Use, in this first step, for the axes, light continuous lines and, only in the ninth step, use dash-dot lines, b/2.

The traced axis of a building are named with Arabian numbers and capital letters, 7mm in height, wrote inside of a rectangle which has the edge between 6 to 9mm, according to the drawing scale (here it can be used 9mm). The cross or radial axis of a building are named with numbers and longitudinal or circular axes with letters.

So, draw the axes 1 and C, with a very light continuous line, like in figure 30. Don’t draw the rectangles now. Write only the name of the axes but use light lines for this (see figure 30).

The distance between the axes A and B is 3.00m, between B and C is 4.20m. The distances 1-2 and 2-3 will be received from the teacher, for each student (according to your number from the list group and acording to the table 3.1).

Table 3.1

Group no.
Name / Distance
1 - 2 / Distance
2 - 3 / Width of external walls / Width of internal structural walls / Width of internal non structural walls / The name of the solution for the walls
1 / 3.00 / 6.00 / 35 / 30 / 15 / BCA, YTONG (A1)
2 / 3.00 / 6.30 / 45 / 25 / 12.5 / POROTHERM (A2)
3 / 3.30 / 6.60 / 36 / 30 / 15 / GVP + 6cm insulation (B2)
4 / 3.30 / 6.90 / 38.5 / 25 / 12.5 / CPP + 6cm insulation (C2)
5 / 3.60 / 7.20 / 43 / 30 / 15 / GVP + 8cm insulation (D2)
6 / 3.00 / 6.00 / 43 / 30 / 15 / GVP + 8cm insulation (D2)
7 / 3.00 / 6.30 / 35 / 30 / 15 / BCA, YTONG (A1)
8 / 3.30 / 6.60 / 45 / 25 / 12.5 / POROTHERM (A2)
9 / 3.30 / 6.90 / 36 / 30 / 15 / GVP + 6cm insulation (B2)
10 / 3.60 / 7.20 / 38.5 / 25 / 12.5 / CPP + 6cm insulation (C2)
11 / 3.00 / 6.00 / 38.5 / 25 / 12.5 / CPP + 6cm insulation (C2)
12 / 3.00 / 6.30 / 43 / 30 / 15 / GVP + 8cm insulation (D2)
13 / 3.30 / 6.60 / 35 / 30 / 15 / BCA, YTONG (A1)
14 / 3.30 / 6.90 / 45 / 25 / 12.5 / POROTHERM (A2)
15 / 3.60 / 7.20 / 36 / 30 / 15 / GVP + 6cm insulation (B2)
16 / 3.00 / 6.00 / 36 / 30 / 15 / GVP + 6cm insulation (B2)
17 / 3.00 / 6.30 / 38.5 / 25 / 12.5 / CPP + 6cm insulation (C2)
18 / 3.30 / 6.60 / 43 / 30 / 15 / GVP + 8cm insulation (D2)
19 / 3.30 / 6.90 / 35 / 30 / 15 / BCA, YTONG (A1)
20 / 3.60 / 7.20 / 45 / 25 / 12.5 / POROTHERM (A2)
21 / 3.00 / 6.00 / 45 / 25 / 12.5 / POROTHERM (A2)
22 / 3.00 / 6.30 / 36 / 30 / 15 / GVP + 6cm insulation (B2)
23 / 3.30 / 6.60 / 38.5 / 25 / 12.5 / CPP + 6cm insulation (C2)
24 / 3.30 / 6.90 / 43 / 30 / 15 / GVP + 8cm insulation (D2)
25 / 3.60 / 7.20 / 35 / 30 / 15 / BCA, YTONG (A1)
26 / 3.00 / 6.00 / 31 / 25 / 12.5 / CPP + 6cm insulation (B1)
27 / 3.00 / 6.30 / 43.5 / 25 / 12.5 / CPP + 6 cm insulation (C1)
28 / 3.30 / 6.60 / 38 / 25 / 12.5 / CPP + 8 cm insulation (D1)
29 / 3.30 / 6.90 / 31 / 25 / 12.5 / CPP + 6cm insulation (B1)
30 / 3.60 / 7.20 / 43.5 / 25 / 12.5 / CPP + 6 cm insulation (C1)

At the ground floor, this building has a living room, a bathroom, a kitchen with a pantry, a storage room and stairs case (see figure 31).

figure 31 – Ground floor of the left part of the building

To get the ground floor plan, one has to cut the building like in figure 32.

figure 32 – Ground floor of the left part cut to get Ground Floor Plan

SECOND STEP

The drawing of the internal structural walls of the building

(see figure 68)

Use, in this first step, for the walls, light continuous lines and only in the end, use b for these lines. Ignore the future wholes for doors.

Load bearing brick walls, structural walls (25cm or 30cm), are placed symmetrically to the left and right to each axis (see figure 33).

figure 33 – Internal structural walls 25 or 30cm

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