Why do tall buildings shake?

Wind-induced vibration causes tall buildings to shake.

According to the current "Technical Code for Concrete Structures of High-rise Buildings", the design of high-rise buildings is allowed to produce certain horizontal displacement under the strong wind, but the displacement must be within the specified range.

High-rise buildings will have wind-induced vibration effect under the action of strong wind, and excessive vibration acceleration will make people feel uncomfortable, which is the requirement of wind-induced vibration comfort. The current design code limits the acceleration of wind-induced vibration, and has strict requirements for buildings with a height of150m. It is suggested that the comfort of wind-induced vibration should be strictly considered in residential buildings with a height of about 100 m (about 30 stories) in the future.

Extended data:

Precautions:

1, attention should be paid to the choice of apartment type: high-rise residential buildings are mostly frame structures, with two or more households symmetrically arranged on the first floor, so there will be rooms facing south and north, and some even have small rooms with east-west windows. In addition, some indoor partitions are cast-in-place concrete, which can't be opened and the apartment type is not easy to change. Therefore, when choosing this kind of high-rise apartment, we should fully consider the comfort after occupancy.

2. Pay attention to the total number of households and elevators in the whole building. The quality and running speed of the elevator are also very important. When buying a house, you must choose an enterprise with reliable elevator quality, ask the property maintenance personnel how to rescue when there is a fault, or sign a letter of responsibility with the developer to stipulate how to compensate for the elevator accident.

3, high-rise residential property management can not be ignored, especially monitoring security measures whether there is a guard room on duty at the bottom of the building, whether there is security patrol in the building, and evacuation safety in an emergency.

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