ISOMETRIC VIEW

ISOMETRIC VIEW

CE$454/554$ LOFT$/$FLOOR DECK BOISE, ID

$($A$)$ FLOOR JOIST PLAN

DECK STRUCTURE TO SUPPORT FLOOR$/$LIVING OCCUPANCY LIVE LOAD FOR RESIDENTIAL STRUCTURE:

$LL=--$ PSF $($REFER TO IRC TABLE R$301\mathrm{.}5)$

DEAD LOAD $=$ WEIGHT OF MATERIALS DECKING: $26$ WESTERN RED CEDAR $($WRC$)$

JOISTS: $2$ SPRUCE$-$PINE$-$FIR #$2($SPF$)$

DECK BEAMS: $6$ DOUGLAS FIR #$1($DF$)$

MAXIMUM DEFLECTIONS: IRC TABLE R$301\mathrm{.}7$ LIVE LOAD: L$/360$ TOTAL LOAD: L$/240$

TASK:

DETERMINE DEPTH OF DECK JOIST NEEDED & DETERMINE DEPTH OF GRIDLINE $2$ DECK BEAMS SHOWN ON PLAN:

USE NDS $2018$ SUPPLEMENT REFERENCE DESIGN VALUE TABLES $4$A AND $4$D

DETERMINE REFERENCE DESIGN ADJUSTMENT FACTORS FROM NDS CHAPTER $4$ TABLE $4\mathrm{.}3\mathrm{.}1,$ CHAPTER $3$ AND SUPPLEMENT TABLES $4$A OR $4$D

SHOW:

$-$DETERMINATION OF DEAD LOADS AND LIVE LOADS AS UNIFORM AREA LOADS TO EACH COMPONENT TO BE DESIGNED

ASCE CONTROLING LOAD COMBINATION

TRIBUTARY WIDTHS OF EACH COMPONENT

SHEAR AND MOMENT DIAGRAMS OF EACH MEMBER BASED ON UNIFORM LOADS DETERMINED

ADJUSTMENT FACTORS USED

DETERMINE DEPTH TO USE BASED ON BENDING, SHEAR AND DEFLECTION