Tips for the construction steps of professional attic in Changsha: It is safer to build attic space in an area.

Attic refers to the relatively high space of the building, and a layer of attic floor has been re-made in the middle. Attic refers to the room located at the lower part of the sloping roof of a house. Can be used on it, which is the best private space for storage, work, life, or shooting studio and attic. Attic decoration is very popular in recent years, especially the decoration of small attics is very popular with some young people. In the eyes of owners, the shortcomings of duplex are quite obvious, such as irregular space and narrow space, but in the eyes of designers, these shortcomings are its charm. Once these "short boards" are properly used, their spatial changes will be more abundant. But the principle of design and construction is: never destroy the original structure of the attic, ventilation, lighting, waterproof and heat insulation, these designs can not be ignored. So, do you know the steps to build a professional attic? Don't worry, learn about the professional attic building steps with me!

Construction steps of professional attic in Changsha

① Determine the function: some practical problems must be solved in the attic building to meet the functional requirements that the original architectural pattern cannot meet. Therefore, first of all, we must make clear the future use of the attic. Different functions have different requirements for space, which has a direct impact on determining the scope and elevation of the attic.

② Determination of area: According to the stress and bearing capacity of the wall, the general scope of the attic building can be determined. There is no need to blindly pursue area.

Steps to build a professional attic in Changsha 1. The premise of building an attic

1. Your house must have enough stories. 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. The lower edge of the single-story attic floor 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 are alive. If your attic is uninhabitable, you can decide 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.

Changsha professional attic construction step 2. Types of attic buildings

There are two common ways to build an attic:

1, channel steel or I-beam. Generally speaking, channel steel can be used, but the bending strength of I-beam will be higher, of course, the cost will be higher, and I-beam will occupy more space. The advantage of channel steel structure is that it is fast and can be used without waiting. The disadvantage is that the attic made of channel steel will have a certain shaking sound when people walk on it. The smaller the size of channel steel, the louder the vibration sound. Channel steel is recommended.

2. Cast-in-situ reinforced concrete. The practice of reinforced concrete belongs to civil engineering, but there are additional conditions, that is, it is necessary to require the original wall to be connected with structural steel bars with steel plate joints or other rebar-planting fasteners, otherwise the weight of reinforced concrete is not fixed by ordinary supports or fasteners, which may pose a safety threat. The advantage of reinforced concrete floor is that people generally don't feel shaking when walking on it, and there will be no noise (unless the floor is thin). The disadvantage is that cement floors are generally time-consuming. After pouring, the pure curing time is one month. Step three. Construction method of channel steel attic.

Because cement cast-in-place is rarely used, we will focus on the construction of channel steel. If you use cement floor, then I suggest you refer to relevant building construction books. The following construction method is based on the fact that your indoor plane is square.

1, the key point of channel steel floor is the fixation of both ends of channel steel. There are three main fixing methods: one is to make one on the wall with angle steel, lock it on the wall with expansion screws, and then fix it on it with channel steel, or fix it with planting bars. This method is limited to the places where the walls at both ends are load-bearing walls or beams pass through, and they are fixed on the walls with expansion screws, and the distance between the expansion screws is not more than 200 mm The other method is to make holes in the walls first, and then put the channel steel into the walls, and the walls directly bear the weight of the channel steel. This method is limited to load-bearing walls or thick shear walls. Another method is to directly erect another channel steel to support the horizontal channel steel, and the vertical channel steel should be fixed on the wall. This method should consider the bearing capacity of the floor where the vertical channel steel is located, adopt more distributed support, and don't concentrate on a few channel steel. The third method needs to use channel steel instead of angle steel in the first method. Generally fixed on the longest sides. If the longest two sides are laid in parallel without fixed conditions, the shortest two sides can also be laid.

2. The fixed point of channel steel is solved, and the next problem is the layout of main keel. Generally speaking, for the living room, it is recommended to use 120×60×6mm or 3, and then weld the auxiliary keels between the main keels. The auxiliary keel can be made of equilateral angle steel, with the specification of 50x50x4mm or 4, and welded with railings or stairs. Railings and stairs can only be welded on the main keel, and they must be fully welded.

5. Then use sandpaper to polish the severely corroded position, and then use antirust paint to coat all channel steel and angle steel. 6. Spread a layer of 15cm plywood on the skeleton, which can be fixed on the auxiliary keel with rivets. Spread another layer of 12 cm large core board (joinery board) on the plywood. The gap between the two layers must be staggered. The core board must be fixed on the plywood and nailed directly. If you don't want to use plywood, if the density of the auxiliary keel is dense enough, after laying a layer of steel mesh on it, you can even use fine steel bars and cement to pour a floor with a thickness less than 50 mm The floor poured with cement has a lower shaking sound than that with plywood, but a certain number of cracks may appear on the floor poured with cement. At this time, it is necessary to ensure the proportion of cement mortar and enough fine steel bars.

7, laying other surface materials, such as solid wood floor, carpet or ceramic tile (limited to cement pouring floor).

8. Note: 1. If you have no confidence in the fixation of channel steel, you must install channel steel bracket at the position of crosspiece perpendicular to the ground. Under the condition that the crosspiece has been fixed, not every main keel needs the vertical support of channel steel, and only two or three supports are needed on the side less than 6 meters. 2. The steel bar itself should not be welded into two sections, but must be integrated with the length.

9. If your indoor plane is not square, but other polygons, then follow the construction steps of Changsha professional attic.

Strictly speaking, the use of reinforced concrete has gone beyond the scope of decoration and belongs to the practice of civil engineering. Lao Huo just wants to mention a few key points here, and the specific things have to be decided by the 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.

Advantages and disadvantages of steel frame

Advantages:

1, light load, that is, its own weight is light, and it is enough to undertake home decoration and peacetime activities.

2. The construction period is short and the construction is clean.

3, the requirements for designers are not high, and general decoration designers or professional welders can design, with low risk and less hidden dangers in construction.

Disadvantages:

1, poor sound insulation effect. After the completion of the general steel frame, the upper and lower parts are sealed with wooden boards, and then the floor is made above, and the latex paint is brushed below. The above action is clear below.

2. Maintenance is difficult. As mentioned above, steel frames are generally sealed up and down with wooden boards. Because of the climate in Shenzhen, there is a lot of moisture in the hot air in summer, so the air conditioner is usually turned on after work. This causes the easy-to-cool steel frame to cool first, and the water in the hot air around the steel frame immediately cools into water mist and adheres to the steel frame. Although the steel frame has been painted with antirust paint, it will also cause the steel frame to rust, and the rust water will fall on the board under the steel frame, resulting in rust spots on the smallpox latex paint. If it is repaired, it will be very troublesome to make the following board.

Editor's summary: The above is the introduction of the steps to build a professional attic in Changsha. It is necessary to build a safer attic space. I hope I can help my friends in need! Please continue to pay attention to our website for more information, and more exciting content will be presented later. You can also go to Rilong Decoration Mall to buy more products you like!