8B. ANALYSIS PART 2

CHAPTER 8B 'ANALYSIS' 17 As a criterion for this condition, in the case where the bulkhead is not deformable, the rule may be used that the relative floor arrow on either side of the building shall not exceed 150% of through the relative arrow. (iii) The ratio of the horizontal dimension on one floor to the corresponding dimension on an adjacent floor does not exceed 1.5 (excluding the top floor and appurtenances). As a criterion for this condition, the rule may be used that the average relative arrow of a floor (excluding appendages) shall not exceed 150% of the relative arrow of the underlying or the floor above. (iv) The building does not exhibit a strongly asymmetrical distribution of stiffness in plan view on any floor. §5.6.1 Conditions of application (Elastic Dynamic Analysis) (EC-8_Greek Elastic Dynamic) For the elastic methods there is no question of conditions of application relating to the level of confidence in the data. α. The scope of the dynamic elastic method is defined by the condition that for all principal elements λ ≤ 2.5. or for one or more of them λ > 2.5 and the building is morphologically normal. For the reasons for providing for this possibility see the comments of the §5.5.2β. β. Notwithstanding the validity of the conditions in the previous paragraph, but provided that there is no substantial damage, the dynamic elastic method may be used for the purposes of valuation (only). In this case the coefficients security simulation cSd provided in § 4.5.1 shall be increased by 0,15. IMPORTANT OBSERVATION: However, for both methods, it gives the possibility to apply the Elastic methods only for valuation purposes , provided that the factor of the permanent loads γsd is increased by 0.15. ( 4.5.1d) Also, according to Chap. 5, and as far as elastic analysis, static or dynamic, is concerned, its application is permitted, for valuation purposes only, irrespective of the validity of the application conditions (see §§ 5.5.2.b and 5.6.1.b), if the γSd factors in this § 4.5.1 are augmented by 0.15 (i.e. γSd,ελ.= γSd+ 0.15 ). ) • So in the Analysis section, New , define a preliminary analysis scenario (pre-test) either static or dynamic (EC-8_Greek Elastic Static or Dynamic) , the