Overall Conceptual Seismic Design and Local Seismic Capacity Design for Components of Bridges - Structural Seismic Design Optimization and Earthquake Engineering - page 292

Table 10. Seismic demand comparisons of the bridge with different bearings

Shear force demands of piers Deck-pier relative displacement

Design scheme Pier location Base Shear ( W d ) % of original Displacement (mm) % of original

PN2 0.0473 - 280 -

PN1 0.0545 - 273 -

Original
design

PS1 0.0914 - 268 -

PS2 0.0524 - 268 -

PN2 0.0491 104% 152 54%

PN1 0.0474 87% 142 52%

Alternative
design

PS1b 0.0537 59% 128 48%

PS2 0.0473 90% 113 42%

Table 11. Check comparisons of the unbeneficial pile for different bearings

Seismic Demand

Moment capacity
(×10 3 kN·m)

Design scheme Pier location Axis force (×10 3 kN) Moment (×10 3 kN·m) Check

PN2 9.633 18.45 22.15 Yes

PN1 10.872 15.39 22.59 Yes

Original
design

PS1 1.546 22.94 18.64 No

PS2 9.591 18.48 22.13 Yes

Alternative
design

PS1 4.081 15.23 19.90 Yes

Figure 21. Constitutive model of SFRC