Loadbearing and non-loadbearing internal partitions:
Sections can be constructed from different materials. We focus on:
◊ Simple half brick thick brick and narrow block sections, 50, 75, and 100 thick – these can be load-bearing or non-load bearing.
◊ The stud sections are covered with sheet material on both sides – these can be load-bearing or non-load bearing.
Whether a section rises from the ground or subfloor surface or depends on an independent foundation:
1. Whether it is loaded or load-bearing
2. The structure of the ground
3. The mass of the material that made the partition.
In domestic construction, brick sections should generally be built with an independent foundation, not load or load-bearing, because the self-weight is high:
◊ The minimum width of the foundation is 450
◊ The minimum thickness is 150.
However, depending on the loadings with the concrete sub-floor (not on the site concrete), the sub-floor can be built – but see Figure 3.28 for the available options.
Dense concrete block sections should be treated as brick sections. They are of the same or greater self-weight.
Medium and light block sections usually require a more independent foundation if they are high loading, or can be built from a subfloor if lightly loaded as in a brick partition.
The detail in Figure 3.28.
However, Non-load-bearing block sections are constructed from the floor surface if they are concrete, solid, or hung, or a wooden runner if they are wood.
A wooden sprinter is attached to the ceiling and blocks are built between the two runners.
These are shown in Figure 3.29.
Note that the floor structure must include additional joists or noggings or, moreover, a solid strutting between two joists under the runner.
However, A lightly loaded block section constructed from the sandwich floor should be constructed from the bottom layer of concrete, which must be locally thickened and reinforced locally – see Figure 3.30.
Stud sections are made of sawdust or patterned wood, which is attached to the surface of a runner or saw plate; The sprinter is attached to the ceiling surface and there is an influx of vertical trees or ‘studs’.
Generally, dangs are inserted between the studs at a maximum of 800 intervals to prevent buckling of the studs. This is especially important if the partition is load-bearing.
Refer to Figure 3.31
The range of options for junctions etc.
The frame is usually covered with plasterboard 9.8 or 12.5 thick, and 12.5 thick is used to provide fire protection on the ‘at risk’ side.
Cannot contribute to the load-bearing characteristics of the plasterboard section.
The wood sizes used are generally the same in any one category and range from 50 × 38 to 100 in domestic construction × 50 Depending on the requirements placed on the finished section.
Moreover, Brick and block sections, due to their mass, have good sound insulation qualities, while stud sections act as ‘drums’ and transmit sound easily; In fact, they seem to amplify certain frequencies.
Attenuation is possible by filling between the studs with fairly thick Rockwool or fiberglass quilts, and by doubling the thicker layers of plasterboard – at least 12.5 thick – adjacent layers.
Most of the technique shown in Figure 3.32 is to provide separate studs to support the boarding on each side of the partition and the fiber passage between the studs.
Again heavy plasterboard – 12.5 or 19 thick – is used to give the mass. Stud sections can be load-bearing, especially in lightweight domestic construction.
However, They are always supported by a floor structure that requires reinforcement under the section line.
This is perfectly feasible as the details show. A structural separation requires fire protection on both sides, whether inside a ‘single occupancy’ building, ie in the same house.
In the collective local authority housing of the 1960s and 1970s, it was common practice to build 2400 high load-bearing sections in 400 centers with two rows of 50 × 38 studs, 50 × 38 saw plates, and 50 × 38 dwangs.
The partition is covered with 12.5 plasterboards on both sides. Such sections are set on the ground
Wooden floor and dwarf or sleeper wall within the joist span hanging at right angles to the sleeper joists.
They are designed to carry a share of the load from the first floor and sometimes the upper section – but do not carry any roof load. Both sections should be directly overlapping.
Racking resistance is usually not necessary because the ends are usually attached to the outer walls and the top and bottom runners are attached to the ceiling and floor structures respectively.
Can be non-load bearing stud sections Built from the top surface of any concrete floor.
Therefore, Load-bearing stud sections are usually lightly loaded and can be built from the top of a single layer floor without being thickened.
With a sandwich floor, it’s better to build From the bottom layer, as shown in Figure 3.33, the entire top layer is relatively thin and cannot be locally thickened without losing the insulation layer.
The sequence of construction of such a section is as follows:
The Soleplate is plugged into the bottom layer of concrete and small packing pieces or a continuous piece of paper is hit by it.
Therefore, The top of the packing piece is set to finish at the same level as the top layer of concrete. Smaller packing pieces should match the ends of the studs.
1. Put the insulation under the floor.
2. Lay the top layer of concrete.
3. Nail the bottom runner of the section to the packing pieces and complete the partition as usual.
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