טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentMaritt Sever
SubjectA Seismic Architecture as an Essential Component of the
Structural Integrity of Israeli Apartment
Buildings in Earthquakes
DepartmentDepartment of Architecture and Town Planning
Supervisor Professor Emeritus Yankelevsky David
Full Thesis text - in Hebrew Full thesis text - Hebrew Version


Abstract

The purpose of this thesis is to highlight the architect of the need to be aware of seismic issues as part of the various design considerations and constraints.

The research question is: What are the architectural properties of the building which influence its behavior in an earthquake event? Can they be identified in Israeli apartment buildings?

The answer to the research question consists of two parts. The first addresses the architectural properties of the building which influence its behavior in earthquake events, based on an analysis of the relations between the various principles of seismic architecture arising from the literature, such as: (1) Symmetry  (2) Continuity of the resisting elements (3) Distribution of mass      (4) Dimensions:

  1. Since the seismic force can act on the building from any direction, a symmetric plan will be optimal.
  2.  The continuity of the resisting elements improves the ability of the building to withstand seismic forces and transferring them from the uppers floors of the building down to the foundation level.
  3. The size of the seismic load is dependant on the mass of the building. Therefore the magnitude and distribution of the building mass is another design aspect that should be noticed.
  4. Various geometrical aspects of the building dimensions influence its behavior during an earthquake.

In address the second part of the question- Can the architectural properties be identified in Israeli apartment buildings- a tool has been developed to enable a preliminary analysis of building drawings. With this tool, three representative designs of apartment buildings from the public sector were analyzed. (These buildings have been built by the government of Israel before a seismic code for design buildings has been applied in Israel).

This tool makes it possible to differentiate types of buildings according to the number of characteristics which are problematic from a seismic architecture perspective.

However, in order to conclude what the structural integrity of the building is, one cannot rely solely on this preliminary analysis.

The common goal of the two professions- architecture and structural engineering- is to ensure the safety of the people inside a building. Seismic architecture will take into account seismic aspects together with other matters of concern in order to make sure the building will not only be functional but also will be able to structurally survive an event of an earthquake.