Joke Collection Website - Bulletin headlines - Is the balcony near the living room of the small apartment building in Xiamen Oriental Pearl Plaza a load-bearing wall? Can it be dismantled?
Is the balcony near the living room of the small apartment building in Xiamen Oriental Pearl Plaza a load-bearing wall? Can it be dismantled?
1. All-wood structure: In ancient times, the floors were basically all-wood structure, with a relatively long service life, but now the wood is basically fast-growing wood, which is absolutely different from the original big wood used for buildings in ancient times. This method is rarely used now.
Second, channel steel: it is very cheap and easy to operate, and can be used at any time. However, due to the lack of rigidity and flexibility of channel steel itself, when people walk on it, there will be a certain shaking sound, and the smaller the channel steel specification, the greater the shaking sound. It is only suitable for spaces with small area and less load. The span of the shortest side of the attic should not be too large, generally not more than 4 meters, and the maximum is not more than 6 meters.
3. I-beam: Compared with channel steel, I-beam has higher bending strength, higher construction cost and troublesome technology, but its own weight is much lighter than that of concrete floor slab, so it is unnecessary for design institute to draw drawings.
Disadvantages:
1, I-beam is relatively thick, and the floor slab and the lower ceiling of the building need to be wrapped with blockboard, which is relatively thick and occupies a high floor.
2. Steel has good thermal conductivity. For hot summer, air-conditioned rooms and rainy areas, even the channel steel structure treated with antirust paint needs to be maintained every three years, which is easy to rust.
3. For the channel steel attic with large span, the floor itself is still very elastic, so it is not suitable for strenuous exercise on the floor.
4. If the bearing capacity of the beam and foundation in the original building design allows, cast-in-place reinforced concrete is the best way, with reliable quality and long service life, and people can hardly feel any shaking when walking on it.
1, requirements for cast-in-place reinforced concrete floor slab:
(1) Call the civil data of the house to inquire whether the bearing capacity of the beam and foundation can bear the load of the cast-in-place floor;
(2) Construction can only be started after the professional design institute has issued drawings and obtained the consent of the property, otherwise it is likely to cause irreparable damage to the building structure and reduce the service life of the building.
(3) This is a highly professional project, and it is best to ask a professional team to construct it. At present, many construction companies have different quality levels, and the concrete floor construction is not standardized and the quality is not good enough. However, in the long run, problems will gradually appear on the floor.
(4) The original wall has steel plate joints or other rebar-planting fasteners related to structural reinforcement. Otherwise, the weight of reinforced concrete is not fixed by ordinary brackets or fasteners, which may pose a safety threat.
2. Disadvantages:
(1) is relatively heavy.
(2) Long construction time: after pouring, the pure curing time will take more than 20 days, plus the previous construction time, it will take about 45 days before and after.
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