What is the height of a 9-storey building in meters can be easily calculated using the formula. It is enough to substitute the values of the height of 1 floor and their number. The result should be a value of about 27 meters. But in reality, it may differ and be 28, 30 or more meters. It largely depends on the project under which the construction was carried out. On what values the height of a nine-story building still depends, we will answer in the article.
Buildings of this type are classified as multi-apartment buildings of high complexity of medium height. Until the 90s, they were massively built by entire microdistricts. The apartment buildings (MKD) built in the 60–90s received the names in whose reign they were built – Khrushchev, Brezhnevka.
Floor height
What is floor height is the distance from the floor of your floor to the floor of the floor above. The standard is not defined by any specific number. Therefore, in typical projects of 9-storey buildings, this value could be different and fit 2,6 – 3,0 meters and even 3,3 meters.
Do not confuse this value with the height of the ceilings. Here it is probably clear that this is the distance from the floor to the ceiling. It was determined mainly by the material from which the house was built. Even during the Soviet era, Khrushchevs, which were supposed to be the standard standard, had a distance to the ceiling of 2,45 – 2,55 m.
The height of the ceilings in a panel house depended on the dimensions of the panel. The panels were made from 2,5 to 2,8 meters. In a brick nine-story building, the height reached 2,8 – 3 m. The highest ceilings were found in monolithic buildings and, depending on the concrete used, reached from 3 to 3,30 m.
Based on the foregoing, we can consider the average floor height of 3 meters. And from the formula mentioned above, we get 3 * 9 = 27. But still, the calculations will also be inaccurate and several more parameters need to be taken into account.
To date, the exact height of the ceilings in the SNiP is not spelled out. But it contains a standard that for residential buildings the height must be at least 2,5 meters.
Foundation and roof
The height is 27 meters lower than the real one, the reason is unaccounted for values. The house is not built immediately from the ground, it stands on a foundation that has some elevation from the ground level. Residential floors come after the basement. The basement floor of the house is a room partially located in the ground; in high-rise buildings, usually a basement.
The foundation is a rather massive structure and must withstand the weight of 9 floors, which can be 15-18 thousand tons (one entrance). But almost all of it is hidden underground and we do not take it into account.
This is another plus meter to the result, in total it is already 28 meters. To this result, a technical floor or roof can be added, approximately 2,0 meters. In some buildings, instead of a technical floor, the lifting mechanism of the elevator was installed on the roof, and then the project will indicate the height along its cut.
Typical projects
Nine-story houses from blocks according to the II-18-01 / 09 type series, this is the most common 9-story Khrushchev building in Moscow. The first houses of this type began to be built in 1957-1958. Panel houses of the I-515 / 9M series were built from 1957 to 1976. By the way, the height of the ceilings in them was 2,64 m.
Brick houses were also built. From 1973-1983, very high-quality houses were built according to the II-66 type series. Housing in them was of an improved layout and was considered prestigious. There is a version of the II-18-01/09 series in brick version II-18-01/09MIK.
After the 70s, a new catalog of building parts began to operate in the Soviet Union, and with it new projects appeared. Here are the most common series of houses: 1-515/9sh, 1605/9, 11-18/9, 11-49; P-44K, 137.
There are really a lot of projects and it makes no sense to list everything, but you need to know that they had different heights. The exact data can be found in the architecture committee.
Savings in economics
During the Soviet era, much was standardized. Standards appeared, leaving the standards, which were determined by calculations and tests. At the same time, projects for different regions differed. Soils and climatic conditions were taken into account and, most importantly, to build as economically as possible. The main task in Soviet times was to provide people with housing, and convenience and comfort were in the background.
The economy explained a lot. The priority in the construction of 5 and 9-storey buildings erected at that time is explained by simple reasons. A house with a height of more than 28 m was to be equipped with smoke-free stairs with a passage through an open balcony. Due to compliance with fire safety regulations, installation of gas stoves is only allowed up to the 9th floor.
And besides, in addition to the elevator, which nine-story buildings, unlike 5, 10-story buildings and above, were to be equipped with a freight elevator, they had to have a freight elevator. The cost of housing in such houses increases greatly and pays off only with the construction of buildings over 14 floors.
Another reason for the popularity of the construction of 9-story buildings is that fire engines had standard ladders with a reach of up to 30 m. At that time, they used imported Magirus or Metz mechanized ladders installed on the ZIS-6 (PEL-30).
Сonclusion
The height of the 9-story building is still better to take 30 meters. These will be averaged, but more correct data.