Reaction Walls

SEESL is equipped with two reaction walls ("strong walls") on the east end of the laboratory. The first is located adjacent to the strong floor, and the other is adjacent to the shake table trench. See below for dimensions and capacities of both strong walls.

Physical Data

reaction wall next to strong floor.

Reaction wall next to strong floor

Reaction wall adjacent to the strong flloor:

  • Length: 41'-0"
  • Height: 30'-0"
  • Thickness: 2'-0"

Reaction wall adjacent to the shake table trench):

  • Length: 23'-0"
  • Height: 30'-0"
  • Thickness: 2'0"

Capacity Data

Allowable load per strip along NUMBERED lines (based on shear)
Position Lines Max Force Shear Strength Clear Span
ft   kip/ft kN/ft kN/m ton/m ton/m ft
1 TA TB TF TG TK TL A E F J K O P 120 544 1784 182 172 9.00
3 TC TE TH TJ B D G I L N Q S 157 712 2333 238 172 9.00
5 TD TI C H M R 226 1028 3370 343 172 9.00
Allowable concentrated load PER HOLE (based on shear strength)
Position Lines Max Force Shear Strength Clear Span
ft   kip kN kN ton ton/m ft
1 TA TB TF TG TK TL A E F J K O P 239 1088 1088 111 172 9.00
3 TC TE TH TJ B D G I L N Q 313 1423 1423 145 172 9.00
5 TD TI C H M R 452 2055 2055 210 172 9.00
Allowable concentrated load PER HOLE (based on moments)
Position Lines   hole @ 2ft 0.61m   Gross Span
ft   kip kN kN ton ton-m/m ft
1 TA TB TF TG TK TL A E F J K O P 241 1096 1096 112 165 10.00
3 TC TE TH TJ B D G I L N Q S 103 470 470 48 165 10.00
5 TD TI C H M R 87 395 395 40 165 10.00
Allowable concentrated load PER HOLE (based on punching shear)
Position Lines Max Force Shear Strength Clear Span
ft   kip kN kN ton kips ft
1 TA T TF TG TK TL A E F J K O P 182 826 826 84 182 10.00
Allowable moment per strip along ALPHABETIcAL lines (based on shear)
              Gross Span
    kin-in/ft kip-ft/ft kN-m/ft ton-m/m ton-m/m ft
    4352 363 493 165 165 10.00
Allowable overturning moment per vertical strip
              Gross Span
    kin-in/ft kin-ft/ft kN-m/ft ton-m/m ton-m/m ft
    13056 1088 1480 495 495 10.00
Allowable position for actuators
Size     Height from the floor Mom.strip of Holes Gross Span
ton     in ft m ton-m/m ft
50     324 27.0 8.24 302 10.00
100     237 19.8 6.03 302 10.00
200     119 9.9 3.02 302 10.00

Drawing

drawing of reaction walls.

Drawing of reaction walls