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 adjacent to the strong floor:

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