I.    Test Results (see Test Matrix for more details)

 

Test 1: HSS4x4x1/4, Far-Field Loading History (slow-rate)

Test 2: HSS4x4x1/4, Compression Near-Fault Loading History (slow-rate)

Test 3: HSS4x4x1/4, Far-Field Loading History (EQ-rate)

Test 4: HSS4x4x3/8, Far-Field Loading History (slow-rate)

Test 5: HSS4x4x3/8, Far-Field Loading History (EQ-rate)

Test 6: Pipe3STD (No Reinforcement at Net Section), Far-Field Loading History (slow-rate)

Test 7: Pipe3STD (Reinforcement at Net Section), Far-Field Loading History (slow-rate)

Test 8: Pipe3STD (No Reinforcement at Net Section), Tension Near-Fault Loading History (EQ-rate*)

Test 9: Pipe3STD (Reinforcement at Net Section), Tension Near-Fault Loading History (EQ-rate*)

Test 10: Pipe5STD (No Reinforcement at Net Section), Tension Near-Fault Loading History (EQ-rate*)

Test 11: Pipe5STD (Reinforcement at Net Section), Tension Near-Fault Loading History (EQ-rate*)

Test 12: Pipe5STD (No Reinforcement at Net Section), Far-Field Loading History (slow-rate)

Test 13: Pipe5STD (Reinforcement at Net Section), Far-Field Loading History (slow-rate)

Test 14: W12x16, Compression Near-Fault Loading History (slow-rate)

Test 15: W12x16, Far-Field Loading History (slow-rate)

Test 16: W12x16, Tension Near-Fault Loading History (slow-rate)

Test 17: HSS4x4x1/4 (Concrete Filled), Far-Field Loading History (slow-rate)

Test 18: HSS4x4x1/4 (Concrete Filled), Compression Near-Fault Loading History (slow-rate)

Test 19: HSS4x4x1/4 (Middle Reinforced), Far-Field Loading History (slow-rate)

 

*Only first pull done at EQ rate

 

II.   Experimental Specimens

 

Brace specimens outside the NEES lab at Berkeley’s Richmond Field Station:

 

Design dimensions associated with below figures

Cross-Section

QTY

BWL

(in)

ET

(in)

EW

(in)

GW

(in)

GL

(in)

GWT

(in)

RL

(in)

RW

(in)

RT

(in)

HSS4x4x1/4

6

10

2

10

6

11 ½

5/16 

8

2

¼

HSS4x4x3/8

2

15

2

10

6

16 ½

7/16

8

2

3/8

Pipe3STD

4*

6 ½

1 ½

14

5 ½

8

5/16

6

2

¼

Pipe5STD

4*

12

1 ½

14

7 ½

13 ½

3/8

11

3

¼

*two braces were fabricated without reinforcing plates

 

Fabrication drawing of HSS and PipeSTD braces

 

Typical Connection for HSS and PipeSTD braces

 

Fabrication drawing of W12x16 braces

 

Typical Connection for W12x16 brace

 

III.  Testing Setup at NEES@Berkeley Lab:

 

Plan

 

Elevation