Alternative Support Systems for Cantilever - National Transportation ...

4.4 Concrete Block and Tie-Down Design .............................................................................55
4.5 Instrumentation .................................................................................................................55
4.6 Summary of Torsion Design .............................................................................................58
4.7 Summary of Torsion and Flexure Design .........................................................................59
5 EXPERIMENTAL TEST RESULTS .....................................................................................60
5.1 Torsion Test ......................................................................................................................60
5.1.1 Behavior of Specimen During Testing ...................................................................60
5.1.2 Summary of LVDT Test Results ............................................................................63
5.1.3 Summary of Torsion Test .......................................................................................65
5.2 Torsion and Flexure Test ..................................................................................................66
5.2.1 Behavior of Specimen During Testing ...................................................................66
5.2.2 Summary of LVDT Test Results ............................................................................69
5.2.3 Summary of Torsion and Flexure Test ...................................................................73
6 SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS .........................................74
6.1 Implications of Test Results .............................................................................................74
6.1.1 Torsion Test ............................................................................................................74
6.1.2 Torsion and Flexure Test ........................................................................................75
6.2 Recommendations for Future Testing ..............................................................................76
6.2.1 Introduction and Background .................................................................................76
6.2.2 Tapered Embedded Steel Pipe and Plate Option with Bolted Slip Base
Connection ...................................................................................................................79
6.2.3 Embedded Steel Pipe and Plate Option with Grouted Slip Base Connection ........81
6.2.4 Embedded Concrete Pipe with Bolts Option with Bolted Slip Base
Connection ...................................................................................................................83
6.2.5 Cast-in-Place Solid Concrete Pedestal with Bolted Slip Base Connection ............85
6.2.6 Embedded Concrete Pipe with Bolts Option with Grouted Splice to Concrete
Monopole .....................................................................................................................86
6.2.7 Embedded Steel Pipe and Hoops with Grouted Slip Base Connection ..................87
6.2.8 Embedded Steel Pipe and Plates with Bolted Plate Connection ............................88
6.2.9 Embedded Steel Pipe and Plates with Welded Sleeve Connection ........................90
6.2.10 Summary of Recommendations for Future Testing .............................................91
6.3 Summary ...........................................................................................................................91
APPENDIX
A TEST APPARATUS DRAWINGS ........................................................................................93
B DESIGN CALCULATIONS ................................................................................................104
Torsion Design Calculations .................................................................................................104
Torsion and Flexure Design Calculations .............................................................................135
C TEST DATA .........................................................................................................................168
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