Structural Slenderness Effect Of Tall Building In linear & Dynamic Method

Subject Areas : Analysis of Structure and Earthquake

mehdi  Amri ¹ ()
Abdolreza  sarvgademogadam ² ()
Fariborz  Nategi ³ ()

Received: 2007-07-03 Accepted : 2007-11-11 Published : 2007-12-22

Keywords:

Abstract :

      The structural slenderness ration (height/ with) is one of the title that can be discussed in quake design of building. But unfortunately, in  Iranian code isn’t mention this mater.In this article, bending and bracying structures system are chosen with slenderness ratio 2 upto 6. (11, 17, 23, 29, 35 stage).All of structure are analysed and designed in linear method, then analysed in unlinear method by elcentro earthquake too. Internal forces (average of moment & shear forces in external and internal frames), drift and hinged plastic joint are calculated.In bending system, internal forces are stricken changed in rate of 3 to 6 at linear method. Possibility of structural mechanism (collapse) are increased in this rate too.In bracing structure system, drift are increased in steady procedure and structural mechanism isn’t created