EARTHQUAKE
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1
DETAILED STATIC FORCE PROCEDURE
TOTAL DESIGN BASE SHEAR
TOTAL DESIGN BASE SHEAR
$V=\ \frac{\ C_v\ I\ W}{R\ T\ }$
2
SIMPLIFIED STATIC FORCE PROCEDURE
TOTAL DESIGN BASE SHEAR
TOTAL DESIGN BASE SHEAR
$V=\ \frac{3\ \ C_a\ W}{R}$
3
DETAILED STATIC FORCE PROCEDURE
TOTAL MAXIMUM BASE SHEAR
$(V_{max})$
TOTAL MAXIMUM BASE SHEAR
$(V_{max})$
$V_{max}=\ \frac{\ 2.5C_a\ I\ W}{R\ \ }$
4
DETAILED STATIC FORCE PROCEDURE
TOTAL MINIMUM BASE SHEAR
$(V_{min})$
TOTAL MINIMUM BASE SHEAR
$(V_{min})$
$V_{min}=\ 0.11\ C_a\ I\ W$
5
STRUCTURE PERIOD
$(T)$
$(T)$
$T=\ C_t\ \left(h_n\right)^{0.75}$
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Image occlusion: name the hidden labels
7
DETAILED STATIC FORCE PROCEDURE
TOTAL MINIMUM BASE SHEAR
*additional minimum for ZONE 4*
TOTAL MINIMUM BASE SHEAR
*additional minimum for ZONE 4*
$V_{min}=\ \frac{0.8\ Z\ N_v\ I\ W\ }{R}$
8
DETAILED STATIC FORCE PROCEDURE
LATERAL DISTRIBUTION of FORCE
in EACH FLOOR
$(F_x)$
LATERAL DISTRIBUTION of FORCE
in EACH FLOOR
$(F_x)$
$F_x=\ \frac{\left(w_x\ {\ h}_x\right)\ }{\sum_{i=1}^{n}\left(w_x\ {\ h}_x\right)}\ \left(V\ -F_t\right)$
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DETAILED STATIC FORCE PROCEDURE
TOP FORCE
$(F_t)$
TOP FORCE
$(F_t)$
$F_t=\ 0.07\ TV$
10
SIMPLIFIED STATIC FORCE PROCEDURE
LATERAL DISTRIBUTION of FORCE
in EACH FLOOR
$(F_x)$
LATERAL DISTRIBUTION of FORCE
in EACH FLOOR
$(F_x)$
$F_x=\ \frac{3\ \ C_a\ w_i}{R}$