Horizontal thrust at near buildings

In summary, the horizontal thrust of near buildings remaining after a demolition is typically calculated to determine the scaffolding needed to support them. While theoretically there is no lateral force, in practice, conservative values based on experience are often used due to the possibility of a small perturbation causing an indeterminate, and potentially growing, lateral force. Additionally, the time-dependent element of this must also be taken into account, as demonstrated by a building collapsing 40 minutes after first cracks appeared due to nearby demolition and excavation.
  • #1
pere roca
1
0
Hi
In a demolition what is the horizontal thrust of the near buildings remain.?

that is for calculate the scaffolding to support the near buildings of a demolition.

I read somethingh of a 10 per cent of the dead weight of the walls of the building remain but I think is very conservative.

pere Roca
 
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  • #2
In theory, there is no lateral force, but a small perturbation can initiate a lateral force that is indeterminate, and, possibly, growing with displacement. In practice, codes of practice suggest conservative values based on experience. To complicate it further, there is a time-dependent element to this. Where I live, a building adjacent to a demolished and excavated site fell down. It took 40 minutes from first cracks appearing to total collapse, giving the occupants time to exit safely.
 

What is horizontal thrust at near buildings?

Horizontal thrust at near buildings refers to the force that is exerted on a building, usually from the ground, that pushes against the building in a horizontal direction. This force is typically caused by external factors such as wind or seismic activity.

How is horizontal thrust at near buildings measured?

Horizontal thrust at near buildings is measured using specialized instruments such as strain gauges and accelerometers. These instruments can detect and record the amount of force being exerted on a building and its direction.

What factors can affect horizontal thrust at near buildings?

There are several factors that can affect horizontal thrust at near buildings, including wind speed and direction, seismic activity, soil type and density, and the height and shape of the building.

Why is horizontal thrust at near buildings important to consider in building design?

Horizontal thrust at near buildings is important to consider in building design because it can have a significant impact on the structural integrity of a building. If not properly accounted for, it can lead to structural damage and compromise the safety of the building and its occupants.

How can horizontal thrust at near buildings be mitigated?

There are several ways to mitigate horizontal thrust at near buildings, including designing the building to be aerodynamic and resistant to wind forces, using flexible or damping systems to absorb seismic energy, and properly anchoring the building to the foundation to resist lateral forces.

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