Structural Engineering and Earthquake Simulation Laboratory 1-g Pile Tests – Brief Plans 1-g Pile Tests – Brief Plans R. Bethapudi, S. Thevanayagam, UB PI: R. Dobry, co-PI’s: A. Elgamal, S. Thevanayagam, T. Abdoun, M. Zeghal UB-NEES Lab: A. Reinhorn, M. Pitman, J. Hanley, SEESL-Staff Tulane: Usama El Shamy Students & Staff: UB (N. Ecemis, Raghudeep B.) and RPI (J. Ubilla, M. Gonzalez, V. Bennett, C. Medina, Hassan, Inthuorn)

Structural Engineering and Earthquake Simulation Laboratory Test Plans Single Pile Single Pile High-EI Pile (Test 1A) –2Hz, amax=0.3g High-EI Pile (Test 1A) –2Hz, amax=0.3g Low-EI Pile (Test 1B) – 2Hz, amax=0.3g Low-EI Pile (Test 1B) – 2Hz, amax=0.3g Group Pile Group Pile High-EI Pile (Test 2A) –2Hz, amax=0.3g High-EI Pile (Test 2A) –2Hz, amax=0.3g Low-EI Pile (Test 2B) – 2Hz, amax=0.3g Low-EI Pile (Test 2B) – 2Hz, amax=0.3g

Structural Engineering and Earthquake Simulation Laboratory 6.2 m SECTIONAL VIEW Shaking Frame on Strong Floor Test 1A: High EI pile Test 1B: Low EI pile  =2 or ? deg. F#55 Sand, Dr~45% Single Pile (Tests 1A & 1B)

Structural Engineering and Earthquake Simulation Laboratory Instrumentation: Single Pile

Structural Engineering and Earthquake Simulation Laboratory Instrumentation – Plan View

Structural Engineering and Earthquake Simulation Laboratory

Group Pile (Tests 2A and 2B)

Structural Engineering and Earthquake Simulation Laboratory Instrumentation: 2x2 Group

Structural Engineering and Earthquake Simulation Laboratory Pile Properties Low EI Pile High EI Pile 6.4 m [21 ft] long Grade 50 Steel Hollow Pipe E = 210 GPa [29000 ksi]

Structural Engineering and Earthquake Simulation Laboratory PILE Pile - Base Plate Connection

Structural Engineering and Earthquake Simulation Laboratory Instrumentation Summary for Single and Group Piles Single Pile Group Pile Note: Potentiometer numbers will be increased every ring (24) & video targets will be installed

Structural Engineering and Earthquake Simulation Laboratory Discussion 1. Slope Angle - 2 o or other? 2. Ground Motion – Same as SG-1? 3. Soil Density – Same as SG-1? 4. Pile Stiffness - TBA a1a1 a2a2 a3a3 a4a4 u max =0.75’’ f=2 Hz a 1 =0.01 g (5 sec) a 2 =0.05 g (10 sec) a 3 =0.15 g (10 sec) a 4 =0.3 g (10 sec) Ground Motion - SG-1

Structural Engineering and Earthquake Simulation Laboratory Open for Discussion by All Researchers