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EQ Safe Architecture

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Not the EQ itself, but collapsing buildings cause death and bring social and economic consequences. Therefore architects and structural engineers are directly responsible in this context.

Typical values for acceleration, velocity and displacement of strong EQs:

Image: Typical values for acceleration, velocity and displacement of strong EQs

Subdivision of huge buildings with complex design:

Image: Subdivision of huge buildings with complex design

Advantageous building shapes:

Image: Advantageous building shapes

Disadvantageous building shapes:

Image: Disadvantageous building shapes

Favourable elevation design:

Image: Favourable elevation design

Inappropriate elevation design:

Image: Inappropriate elevation design

Favourable allocation of mass and stiffness in elevation:

Image: Favourable allocation of mass and stiffness in elevation

Inappropriate allocation of mass and stiffness in elevation:

Image: Inappropriate allocation of mass and stiffness in elevation

Structural design avoiding soft basements:

Image: Structural design avoiding soft basements

Good box out design:

Image: Good box out design

Box out design to avoid:

Image: Box out design to avoid

Favourable allocation of mass and stiffness in the ground plan:

Image: Favourable allocation of mass and stiffness in the ground plan

Inappropriate allocation of mass and stiffness in the ground plan:

Image: Inappropriate allocation of mass and stiffness in the ground plan

Appropriate center of gravity:

Image: Appropriate center of gravity

Inappropriate allocation of masses:

Image: Inappropriate allocation of masses

Ductile mechanism of a framework:

Image: Ductile mechanism of a framework

Continous design and bend-proof slab interconnection compared to the disadvantageous characteristics of a slab offset:

Image: Continous design and bend-proof slab interconnection compared to the disadvantageous characteristics of a slab offset

Frontispiece: Dynamic shaping of two buildings with different size: Dynamic equivalence (T1=T2) is only existent if both buildings are made from the same material and completely solid. In reality the mass of the bigger building is higher while its stiffness is smaller than that of the small one. To achieve dynamic equivalence, the mass of the small building has to multiply. Furthermore, in small scale buildings lightweight materials like wood may be used and the whole bearing structure can be buttressed homogenous because of smaller span widths. Neglecting the rules of EQ compliant design results in less severe damages in small buildings. If design rules are disregarded, the powers of EQs cause much higher reparation costs than for a building constructed in a suitable design.

Go on reading here about:
→ EQ Safe Architecture,
EQ Safe Buildings,
EQ Safe Construction,
EQ Safe Design and
EQ Safe Engineering [5MB].

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