First, the premise of building an attic
1、? Your house must be tall enough. Generally speaking, the lower edge of the floor of the newly-built attic in a duplex room is flush with the lower edge of the original floor. Single-story attic building
The lower edge of the plate is not less than 2.6 meters. The internal clear height of the attic floor and roof is not less than 2.4m, and the minimum is not less than 2.2m.. This is based on the premise that people live, if you
You can't live in the attic, you can set the height at will.
2、? The span between the shortest sides of the attic should not be too large. In the case of using channel steel, it should generally not exceed 4 meters and the maximum should not exceed 6 meters.
Second, the attic building type
There are two common ways to build an attic:
1、? Channel steel or I-beam structure. Under normal circumstances, channel steel can be used, but the bending strength of I-beams will be higher, and of course the cost will be higher, so I-beams will account for it.
The space used is also larger. The advantage of channel steel structure is that it is fast and can be used without waiting. The disadvantage is that when people walk in the attic made of channel steel, there will be
A certain shaking sound, the smaller the channel steel specification, the greater the shaking sound. Channel steel is recommended.
2、? Cast-in-place reinforced concrete. The practice of reinforced concrete belongs to the practice of civil engineering, but there are additional conditions, that is, the original wall should be connected with steel plates, and the steel plates should be connected with structural reinforcement.
Mouth or other steel fasteners, otherwise the weight of reinforced concrete is not fixed by ordinary support or fasteners, which may pose a safety threat. reinforcing steel bar
The advantage of cement floor is that people generally walk on it without shaking and noise (unless the floor is very thin), but the disadvantage is cement floor.
It usually takes a lot of time. After pouring, the pure curing time will be more than one month, plus the previous construction time, it will take two months before and after. If you meet the above requirements.
As for the construction conditions, Lao Huo suggested that you ask the civil engineering unit of the original building to carry out the construction, and don't ask the decoration company to do this project, remember!
Third, the construction method of reinforced concrete attic
Strictly speaking, the use of reinforced concrete has gone beyond the scope of decoration and belongs to the practice of civil engineering. The design master network just wants to mention a few key and specific things here.
This has to be decided by a professional construction team.
1, corners should be fixed with planting bars, and the main girder is not easy to be damaged.
2. The rebar must be made of GB rib steel, which is tied into a net in two layers.
3. Choose qualified cement products and river sand.
4. Post-maintenance of the floor should be done well.
5, for the sake of safety, if necessary, should be used in the corner channel steel support in case of one thousand. These channels can be shielded by design modeling.
6, when the span is too large, be sure to ask a professional civil engineer to calculate, to avoid the danger of overweight.
7, this is a highly professional project, we must find a professional construction team.
Several problems that should be paid attention to when building attic in sloping roof residence
The first question to consider is what kind of roof is suitable for the spatial characteristics of the roof? Whether it is suitable for building an attic. The different architectural design of the top of the slope leads to different space sizes of the top of the slope, but the overall height can be roughly divided into two types: large top and small top.
By measuring the vertical height H 1 from the top to the eaves and the height H2 from the eaves to the ground, a rough judgment can be made. Personally, if the height of H 1 is greater than 2m and the height of H2 is greater than 3.5m, the conditions for building an attic can basically be met. If the heights of H 1 and H2 are not up to standard, then we can only give up the idea of attic with regret and simply "hang a roof"!
If the height and top of the house meet the requirements of building an attic, then when you are happy, you need to consider hiring a qualified builder. Only regular builders have the ability to build compartments in accordance with formal procedures, meticulously according to rules and disciplines. Therefore, we must find a formal and qualified construction party to undertake the construction, and we must not be sloppy!
Material is also a very important thing. Although qualified builders may not use inferior building materials, they will not buy the best materials under the influence of the goal of pursuing profits. Is the house a long-term solution, or should we work harder, run more errands, and strive to "live with peace of mind."
The materials are mainly keel and hard plate. Keels are mainly made of steel and wood. Attention should be paid to the label (strength) of steel and the strength and rust-proof grade of fasteners (screws, nuts, etc.). ).
Hard plates are mainly made of wood, metal plate and stone, and materials with light weight, firmness, high compressive strength, high hardness and not easy to bend and deform after bearing load should be selected.
Pay attention to the channel steel floor when building the attic, which can make the attic stronger. As the attic of China, the height should not be too low. In order to ensure the normal work and life of the people downstairs, the attic on the first floor of the whole house should be more than five meters, so the attic should be more than two meters. Of course, if people don't live in it, their height should not be that high, just suit their height. Therefore, we should remember what Bian Xiao told you and hope to help you.
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