Building Classification High rise, what are the criteria for the classification of high rise buildin

China's General Principles for the Design of Civil Buildings (5261GB 50352-2005) divides residential buildings into 4102 according to the number of floors

The first to third floors are 1653 low-rise residential buildings, the inner four to six floors are multi-storey residential buildings, the seventh to ninth floors are medium-rise residential buildings, and the tenth to ten storeys and above are high-rise residential buildings. Except for residential buildings, civil buildings with a height of no more than 24m are single-storey and multi-storey buildings, and those with a height of more than 24m are high-rise buildings (excluding single-storey public buildings with a building height of more than 24m); Civil buildings with a building height of more than 100m are super high-rise buildings.

The criteria for the classification of high-rise buildings are as follows:

In China, if a building is called a high-rise building, then the height needs to reach more than eight meters, the height of a medium and high-rise building is 100 meters, and if it is higher than 100 meters or more than 200 meters, it is a super high-rise.

The reinforced concrete building with ten floors or more than 28 meters or closed is also a high-rise, and if it is higher than 100 meters, it is a super high-rise building.

According to the relevant regulations, the first to third floors are low-rise, the fourth to sixth floors are multi-storey, the seventh to ninth floors are medium and high-rise, and the tenth to most senior residential buildings are located.

If it is used for civil buildings, high-rise residential buildings and single-storey multi-storey residential buildings cannot be greater than 24 meters, if it is high-rise residential buildings, it cannot be greater than 100 meters, and civil high-rise residential buildings greater than 100 meters belong to super high-rise buildings.

Features of high-rise buildings:

1. The main characteristics of high-rise buildings are high height, many floors and large volume. The area can reach tens of thousands of square meters to hundreds of thousands of square meters. The highest height is up to five hundred meters. These buildings are all behemoths, towering high above the ground, which is its appearance.

2. The structure of high-rise buildings also has its unique characteristics. The structure of high-rise buildings should resist vertical and horizontal loads, and in the first area, it should also resist the action of group excitation.

However, in lower building structures, the vertical load often controls the structural design; With the increase of building height, the horizontal load effect gradually increases. In high-rise building structures, horizontal loads and ** play a decisive role.

3. The building equipment inside the high-rise building is also large and concentrated. Equipment such as water, electricity and many other aspects are also a feature of high-rise buildings.

Generally speaking, the number of floors of high-rise buildings is relatively high, and it needs to meet certain height design standards. What are the divisions of the first and second types of high-rise buildings? PChouse will take you to find out.

1. For residential buildings, the building height is more than 54 meters for the first-class high-rise, and the building height is greater than 27 meters and less than or equal to 54 meters for the second-class high-rise.

2. For public buildings, two-storey and above-two-storey buildings with a building height of more than 50 meters are Class I high-rises, and non-single-storey buildings with a building height of more than 24 meters and less than or equal to 50 meters are Class II high-rises.

3. Medical buildings with a building height of more than 24 meters, independently built elderly care facilities, and important public buildings are a class of high-rise.

4. Libraries with a collection of more than 1 million books, and non-single-storey buildings with a collection of more than 1 million books (radio and television buildings, network bureau level and provincial power dispatching buildings) with a capacity of more than 24 meters are a class of high-rise buildings.

5. Exhibitions, shops, postal services, telecommunications, financial and financial buildings and buildings with a combination of multiple functions on any floor with a building height of more than 24 meters are more than 1,000 square meters.

Some of the specifications write this, six layers below multi-layer, and the above is ......