The Main Principles of the Anti-Earthquake Construction
August 26th, 2010 | Author: admin
A plan that is simple and symmetrical, an investigation of damages that are caused by the earthquake showed the importance of having a building that is simple and the structural elements of the resist of horizontal forces that are symmetrical. These structures can restrain the earthquake forces better because the lack of effect of torque and the force is more equitable.
The building materials are should be as light as possible, Usually, because the availability of certain building materials. Architects and the civil scholars must use building materials that are heavy, but if it is possible, better should use the building materials that are light. This is due to the magnitude of the earthquake inertial load is equal to the weight of construction materials.
For example, the tile roof coverings over the wooden horses could produce the horizontal seismic load as much of 3 x of the earthquake load that is produced by the iron sheets on the wooden horses. It is the same as a pair of brick wall that could produce as much of 15 x of the earthquake load that is produced by wooden wall.
The need of the load resistant construction that is sufficient. So that a building can restrain an earthquake, the inertial forces of the earthquake should be channeled from each structural element to the main structure of the horizontal force which then moving these forces to the foundation and into the ground.
It is very important that the main structure of the horizontal force resisting is elastic. Because, if the elastic force is being exceeded, the sudden brittle collapse is not going to happen, but in some specific places are occur melting first. An example, such as deformation of the nails in a log is happened before the collapse due to bending moments in the shaft.