A Study of Influence Distance and Road Safety Avoidance Distance from Postearthquake Building Debris Accumulation
Table 7
Building collapse impact distance simplified calculation table.
Building destruction types
Disposal mode
Building height
Influence width coefficient
<24 m
24m–54m (including 24 m)
54m–100m (including 54m)
100m–160m (including 100m)
160m–250 m (including 160m)
≥250m
Possible collapsed buildings
The long side of the building is in parallel with the red line
2/3
2/3∼1/2
0.5
0.5∼0.4
0.4∼0.3
The coefficient should be specially studied and not less than 75m
The long side of the building is perpendicular to the red line
0.5
0.5∼0.3
0.3∼0.25
0.25∼0.2
0.2∼0.15
The coefficient should be specially studied and not less than 38m
Uncollapsed buildings
The coefficient is determined according to the safety distance of preventing falling objects
Remarks
The influence distance of the building collapse is calculated by the product of the height of the building exceeding the ground evaluated and the width coefficient. When the height is in the interval specified in the table, interpolation calculation can be used.
