10.06.2013 Views

Analysis and modelling of the seismic behaviour of high ... - Ingegneria

Analysis and modelling of the seismic behaviour of high ... - Ingegneria

Analysis and modelling of the seismic behaviour of high ... - Ingegneria

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

4. SEISMIC RESPONSE OF PARTIAL-STRENGTH COMPOSITE JOINTS<br />

Figure 4.5. Column base plate during fabrication <strong>of</strong> <strong>the</strong> Ispra test<br />

frame<br />

The beams <strong>of</strong> <strong>the</strong> moment frames (see Figure 4.6) are made <strong>of</strong> IPE300 sections<br />

that act compositely with <strong>the</strong> 150 mm thick concrete slab. The slab is poured on a<br />

55 mm deep trapezoidal composite steel deck (Brollo EGB210 pr<strong>of</strong>ile). The flutes<br />

<strong>of</strong> <strong>the</strong> deck are spaced at 150 <strong>and</strong> are oriented perpendicular to <strong>the</strong> direction <strong>of</strong> <strong>the</strong><br />

moment frames. Shear studs arranged in pairs are used at every rib to ensure<br />

composite action with <strong>the</strong> beams. The shear connection degree between <strong>the</strong> steel<br />

pr<strong>of</strong>ile <strong>and</strong> <strong>the</strong> concrete slab is full. For <strong>the</strong> prototype structure, <strong>the</strong> slab extends<br />

500 mm beyond <strong>the</strong> exterior column lines in both directions.<br />

Figure 4.6. Details <strong>of</strong> <strong>the</strong> floor slab/beam assembly<br />

The beam-to-column joint has been designed so as to provide adequate structural<br />

performances both under monotonic <strong>and</strong> cyclic loading. To this aim, a relatively<br />

105

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!