Page 5 - Reinforced concrete voided slabs subjected to gravity and seismic actions

IndexPreface ............................................................................................................... pag. 9Introduction ......................................................................................................1. Structural typology description..................................................................1.1. Voided slabs: general classification ........................................................1.2. The constructive system of the voided slab floor inits historical development ........................................................................1.2.1. The origins ........................................................................1.2.2. The need to lighten........................................................................1.2.3. Towards the voided slab paradigm .............................................1.3. Description of the constructive system ...................................................1.4. Modelling: structural theories ..................................................................1.4.1. Kirchhoff slab ........................................................................» 11» 13 » 13» 16 » 17 » 19 » 21 » 27 » 32 » 32 » 32 » 32 » 34 » 36 » 38 » 39 » 43» 45 » 45 » 46 » 48 » 53 » 53 » 54 » 56 » 581.4.1.1. 1.4.1.2. 1.4.1.3. 1.4.1.4. 1.4.1.5.Calculation Assumption ............................................... Kinematic model .......................................................... Constitutive link ............................................................. Equilibrium .................................................................... Perimeter conditions ....................................................1.4.2. Discrete modelling of a cellular floor ..........................................1.4.3. Numerical modelling ....................................................................1.4.4. Calculation example: square slab placed along the four sides andsubjected to a uniformly distributed load .....................................1.4.4.1. 1.4.4.2. 1.4.4.3.Problem description ..................................................... Analytic solution .......................................................... Numerical models .........................................................1.5. Design criteria and regulatory classification ..........................................1.5.1. Resistant mechanism for voided slabs ..........................................1.5.2. Calculation of reinforcement .......................................................1.5.3. Regulatory criteria .......................................................................1.6. Bibliography ........................................................................5 Indexup © Dalifoform Group © Daliform Grouup © Daliform Group © Daliform Group © Dalifoform Group © Daliform Group © Daliform Group © Daliform Grouup © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Dalifoform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Grouup © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Dalifoform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Grouup © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Dalifo form Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Grou© Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Dalifo iform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Grouup © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Daliform Group © Dalifo form Group © Daliform Group © Daliform Group © Daliform Group © Daliform Grouup © Daliform Group © Daliform Group © Daliform Group © Dalifoform Group © Daliform Group © Daliform Grouup © Daliform Group © Dalif form Grou