Page 191 - Handbook of Materials Failure Analysis

CHAPTER

Seismic risk of RC water

storage elevated tanks: 8

Case study

Hocine Hammoum, Karima Bouzelha, Drifa Slimani
Department of Civil Engineering, University of Mouloud Mammeri, Tizi Ouzou, Algeria

CHAPTER OUTLINE
1 Introduction ..................................................................................................... 188
2 Seismic Vulnerability ........................................................................................ 189
3 Vulnerability Method of CNR-GNDT .................................................................... 190
4 General Presentation of the Vulnerability Index Method ...................................... 191
5 Case Study ....................................................................................................... 193
5.1 The Bracing System .........................................................................193
5.2 Qualities of the Bracing System .........................................................193
5.3 Seismic Behavior .............................................................................194
5.3.1 Hydrodynamic Effect Assessment by the Approximate
Method of Housner ................................................................ 196
5.3.2 Evaluation of the Masses ........................................................ 197
5.3.3 Evaluation of Stiffnesses ......................................................... 198
5.3.4 Calculation of Eigenpulsations ................................................. 199
5.3.5 Determination of the Eigenmodes ............................................ 201
5.3.6 Evaluation of the Seismic Force by the Dynamic Method
of Spectral Modal Analysis ...................................................... 202
5.3.7 Calculation of the Acceleration S a ............................................ 203
5.3.8 Evaluation of the Safety Factor ................................................ 204
5.4 Soil Type .........................................................................................206
5.5 Regularity in Plan ............................................................................207
5.6 Regularity in Elevation ......................................................................208
5.7 Quality of the Nodes .........................................................................210
5.8 Seismic Zone ...................................................................................210
5.9 The Clashing ...................................................................................210
5.10 Site Effect .....................................................................................211
5.11 Details ..........................................................................................211
5.12 Maintenance ..................................................................................211
5.13 Determination of the Vulnerability Index ..........................................212
6 Conclusion ....................................................................................................... 214
References ............................................................................................................ 215

Handbook of Materials Failure Analysis With Case Studies from the Chemicals, Concrete, and Power Industries. 187
http://dx.doi.org/10.1016/B978-0-08-100116-5.00008-9
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