University of Massachusetts Amherst
Adaptive Use Bridge Project 		logo

< Return to Southern Vermont (1906) Bridge
Southern Vermont (1906) Bridge Load Test 1 Computer Simulation
View the methods for this load test here
The loading applied to these models is based on the actual loading used during load test 1. A Chevy 1500 Silverado Extended Cab truck was used. The weight, wheel base and weight distribution for this truck were obtained from the chevy website. Several different sets modeling assumptions were used, including:
  • Pin-pin external boundary conditions; Pinned (truss) internal connections.
  • Pin-pin external boundary conditions; Fixed (frame) internal connections.
  • Pin-pin external boundary conditions; Gusset plate internal connections*.
  • Pin-roller external boundary conditions; Pinned (truss) internal connections.
  • Pin-roller external boundary conditions; Fixed (frame) internal connections.
  • Pin-roller external boundary conditions; Gusset plate internal connections*.
*Only available in ADINA
All deflections shown in tables are downward. This information is also available in Microsoft Excel [XLS] format. More information on the finite element analysis software is available on the ADINA and MASTAN2 official software homepages.

ADINA MASTAN2
Simulation of Tests 1 and 2
(Truck's front axle at location 3)

Simulation of Tests 3 and 4
(Moving load, locations 1, 3 and 4) 		Simulation of Tests 1 and 2
(Truck's front axle at location 3)

Simulation of Tests 3 and 4
(Moving load, locations 1, 3 and 4)

Divider

ADINA - Test 1 and 2 Simulation
External Boundary Conditions Gage # ADINA Results Actual Results
Gusset Fixed Truss Test 1 Test 2
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 0.0164 0.0204 0.0204 0.0300 0.0275
2 0.0204 0.0249 0.0219 0.0365 0.0405
3 0.0187 0.0233 0.0233 0.0400 0.0370
Pin - Roller 1 0.0306 0.0366 0.0366 0.0300 0.0275
2 0.0366 0.0431 0.0381 0.0365 0.0405
3 0.0329 0.0395 0.0395 0.0400 0.0370


Divider

MASTAN2 - Test 1 and 2 Simulation
External Boundary Conditions Gage # MASTAN2 Results Actual Results
Gusset Fixed Truss Test 1 Test 2
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 - 0.0204 0.0204 0.0300 0.0275
2 - 0.0249 0.0219 0.0365 0.0405
3 - 0.0233 0.0233 0.0400 0.0370
Pin - Roller 1 - 0.0366 0.0366 0.0300 0.0275
2 - 0.0431 0.0381 0.0365 0.0405
3 - 0.0395 0.0395 0.0400 0.0370


Divider

ADINA - Test 3 and 4 (Moving Load) - Front Axle at Location 1
External Boundary Conditions Gage # ADINA Results Actual Results
Gusset Fixed Truss Test 3 Test 4
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 0.0138 0.0173 0.0173 0.0210 0.0200
2 0.0129 0.0157 0.0138 0.0270 0.0265
3 0.0083 0.0103 0.0103 0.0205 0.0195
Pin - Roller 1 0.0228 0.0275 0.0275 0.210 0.0200
2 0.0231 0.0272 0.0240 0.0270 0.0265
3 0.0173 0.0205 0.0205 0.0205 0.0195


Divider

ADINA - Test 3 and 4 (Moving Load) - Front Axle at Location 3
External Boundary Conditions Gage # ADINA Results Actual Results
Gusset Fixed Truss Test 3 Test 4
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 0.0164 0.0204 0.0204 0.0270 0.0255
2 0.0204 0.0249 0.0219 0.0400 0.0395
3 0.0187 0.0233 0.0233 0.0375 0.0360
Pin - Roller 1 0.0306 0.0366 0.0366 0.0270 0.0255
2 0.0366 0.0431 0.0381 0.0400 0.0395
3 0.0329 0.0395 0.0395 0.0375 0.0360


Divider

ADINA - Test 3 and 4 (Moving Load) - Front Axle at Location 4
External Boundary Conditions Gage # ADINA Results Actual Results
Gusset Fixed Truss Test 3 Test 4
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 0.0049 0.0600 0.0060 0.0050 0.0035
2 0.0075 0.0092 0.0081 0.0185 0.0170
3 0.0081 0.0101 0.0101 0.0200 0.0180
Pin - Roller 1 0.0101 0.0120 0.0120 0.0050 0.0035
2 0.0135 0.0159 0.0140 0.0185 0.0170
3 0.0134 0.0161 0.0161 0.0200 0.0180


Divider

MASTAN2 - Test 3 and 4 (Moving Load) - Front Axle at Location 1
External Boundary Conditions Gage # MASTAN2 Results Actual Results
Gusset Fixed Truss Test 3 Test 4
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 - 0.0172 0.0173 0.0210 0.0200
2 - 0.0157 0.0138 0.0270 0.0265
3 - 0.0103 0.0103 0.0205 0.0195
Pin - Roller 1 - 0.0275 0.0275 0.0210 0.0200
2 - 0.0272 0.0240 0.0270 0.0265
3 - 0.0205 0.0205 0.0205 0.0195


Divider

MASTAN2 - Test 3 and 4 (Moving Load) - Front Axle at Location 3
External Boundary Conditions Gage # MASTAN2 Results Actual Results
Gusset Fixed Truss Test 3 Test 4
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 - 0.0204 0.0204 0.0270 0.0255
2 - 0.0249 0.0219 0.0400 0.0395
3 - 0.0233 0.0233 0.0375 0.0360
Pin - Roller 1 - 0.0366 0.0366 0.0270 0.0255
2 - 0.0431 0.0381 0.0400 0.0395
3 - 0.0395 0.0395 0.0375 0.0360


Divider

MASTAN2 - Test 3 and 4 (Moving Load) - Front Axle at Location 4
External Boundary Conditions Gage # MASTAN2 Results Actual Results
Gusset Fixed Truss Test 3 Test 4
δ (in) δ (in) δ (in) δ (in) δ (in)
Pin - Pin 1 - 0.0060 0.0060 0.0050 0.0035
2 - 0.0092 0.0081 0.0152 0.0170
3 - 0.0101 0.0101 0.0200 0.0180
Pin - Roller 1 - 0.0120 0.010 0.0050 0.0035
2 - 0.0159 0.0141 0.0185 0.0170
3 - 0.0161 0.0161 0.0200 0.0180


The National Science Foundation This material is based upon work supported by the National Science Foundation under Grant No. DUE-0736972 and Award 0552548.

Any opinions, findings, and conclusions or recommendations expressed in this material are those
of the author(s) and do not necessarily reflect the views of the National Science Foundation.