Is it reasonable that the roof of the top floor cannot bear weight?

Irrationality. The roof is the load-bearing and enveloping component of the top of the building, which is generally made up of the roof.

It is composed of three parts: thermal insulation (heat insulation) layer and load-bearing structure. The roof is also known as the "fifth façade" of the building, which has a great impact on the shape and façade image of the building, and the form of the roof will directly affect the overall image of the building.

The roof bears the loads of itself and its upper parts.

The loads on the upper part include wind, snow and the loads that need to be placed on the roof, components, vegetation and people moving on the roof, etc., and these loads are transferred to the foundation through the walls or columns in the lower part.

The roof is composed of two parts: the surface layer and the load-bearing structure, and attention should be paid to solving the problems of waterproofing, heat preservation, heat insulation, sound insulation, and fire prevention in the structural design, so as to ensure the strength, stiffness and stability of the roof components. The roof design should consider its function, structure, and architectural art requirements.

The roof is a load-bearing structure in the upper part of the building, which supports the white weight and various live loads acting on the roof, and also plays a horizontal supporting role on the upper part of the house. Therefore, it is required that the roof structure should have sufficient strength, rigidity and overall spatial stability to withstand wind, snow, rain, construction, and other loads. The zone should also consider the effect of the load on it to meet the seismic requirements.

And strive to achieve light weight, simple structure; Local materials, convenient construction; It is economical and easy to maintain.

The roof of the top floor can not bear the weight unreasonably, and the general civil building design bears 150---250 kg per square meter of floor, so it must have a certain bearing capacity.

The load per square meter of the roof should be about that. It is generally measured by the design of the house and the standard setting of the exposed load on each floor. The roof load has a clear standard load-bearing provision in the building code, and the load bearing on the roof is about or so, that is to say, according to the weight of the person, the roof can bear 200 kg per square meter, and the roof load alone is 50 kg per square meter.

Generally, the standard of the building belongs to the roof of the upper person, which can bear 200 kg per square meter, and the amount of earthwork and vegetation does not exceed it.

Generally, it is left and right, 1kg=. It is best to follow the design drawings and look at the live load standards for each layer.

1. Generally speaking, the roof load is clearly stipulated in the building code, the roof of the Venerable is general, and the roof is not taken by the person, and the conversion into kilograms is 200 kg per square meter of the roof of the Venerable Master, and 50 kg per square meter of the roof of the Venerable Person.

2. Buildings belong to the roof, which can be calculated according to 200 kilograms per square meter, and the amount of earthwork and vegetation does not exceed this value, but it is still necessary to calculate conservatively, because the amount of summer rain and winter snow should also be considered, so it is recommended that the amount of earthwork per unit should not exceed 130 kilograms per square meter.

3. It needs to be clear that what is the initial function of this building. Whether there is a planning procedure and a formal design. Year of construction and approximate quality. If the floor slab is designed to withstand the standard load, it can bear a weight of about 420 kg.

Roof truss load-bearing. Roof truss load-bearing refers to the structural mode in which a group of members are combined with each other in the same plane to form an integral member roof truss, on which load-bearing members (such as purlins) are placed to bear the roof load. This load-bearing method can form a larger internal space, which is mostly used in buildings that require a larger space, such as canteens, teaching buildings, etc.

According to the different load-bearing parts, sloped roofs mainly include traditional timber frame roofs, reinforced concrete roof truss roofs, steel structure roof truss roofs and membrane structure roofs developed in recent years.

Transverse wall load-bearing is a structural method in which the upper part of the transverse wall is built into a triangle according to the required slope, and the load-bearing components (such as purlins) are directly placed on the wall to bear the roof load. The load-bearing structure of the transverse wall is simple, the construction is convenient, and the material is saved, which is conducive to the fire prevention and sound insulation of the roof. It is suitable for small rooms such as residences, dormitories, hotel rooms, etc.

Dude is too general, is it on the roof or not on the roof? Your house is in that province or city, so it's easy to answer.

In this case, your house should be designed to be about 230 kilograms per square meter, are you planning to place anything?

The roof also belongs to the load-bearing components, such as the concrete plane of the flat roof has the load of waterproof insulation materials, there are also the live load of the master and the wind and snow and the concentrated load of the equipment and the water tank, such as the steel and wood structure slope roof also has the wind and snow on the live load to roll, it is also possible to increase the load of the wet soil of the wheel required for greening on the flat roof, so it is safe to consider all the static and live loads that exist in the roof design. If my answer is helpful to you, please give a thumbs up (in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. If you feel that my answer is still satisfactory, you can click on my avatar for one-on-one consultation.

Finally, I wish you good health and a good mood!

Although there is no such thing as the arrangement and specific dimensions of the components you said. But it can be said that you can do it in a way that is feasible.

The 200kg per square meter of the drawing design is arranged according to the full layout. And this load does not include the decoration of the load, if you lay the mortar directly on the floor slab. Your 5 cm mortar can only be counted as a decoration load.

Your load does not increase, and the converted load per 7 square meters is only 300 7 43kg; Even if you take into account that the 300kg is arranged in the most disadvantageous position, it is much smaller than the 200kg full cloth.

Of course, usually the Venerable or the stacking tools will also have weight, but in the normal design, the general roof overhaul design load can be considered according to 50kg to ensure the safety of the floor slab, so the load of the stacking tools will not be too large.

Actually, the bearing capacity of the floor slab is very rich, and you raise the diameter by another size.

There is also no problem with the bearing capacity of the beams, because the full load is still far from the design load.

Yes, no problem, you add the steel bar to 10mm when you actually build it, and the bearing capacity is larger than the original design, in general, as long as the average square does not exceed 250kg, it is okay.

Generally speaking, the roof load is clearly stipulated in the building code, and the Venerable Roof is general, and the Venerable Roof is not allowed to go back to the roof to take it, and the conversion is converted into kilograms is the Venerable Roof.

The surface is 200 kg per square meter, and the roof is not 50 kg per square meter.

Buildings belong to the roof of the upper man, can be calculated according to 200 kilograms per square meter, the amount of earthwork and vegetation does not exceed this value, but it is still necessary to calculate conservatively, because the amount of summer rain and winter snow should also be considered, so it is recommended that the amount of earthwork per unit should not exceed 130 kilograms per square meter.