By: Shahir A. Safi, PE Kansas City District Corps of Engineers

By: Shahir A. Safi, PE By: Shahir A. Safi, PE Kansas City District Corps of Kansas City District Corps of

EngineersEngineers

Evaluation of Wire Rope Tainter Gates with Evaluation of Wire Rope Tainter Gates with using EM 1110-2-2702 (2000)using EM 1110-2-2702 (2000)

Presentation OutlinePresentation Outline

Tainter Gate TerminologyTainter Gate Terminology Generating 3D centerline model in Micro Generating 3D centerline model in Micro

Station for export to STAADStation for export to STAAD Building the 3D Frame Model in STAADBuilding the 3D Frame Model in STAAD LRFD Code of Tainter Gate ElementsLRFD Code of Tainter Gate Elements

Tainter Gate TerminologyTainter Gate Terminology

3D Centerline Model Drawn 3D Centerline Model Drawn in Micro Stationin Micro Station

-Dimensions are taken from Record Dimensions are taken from Record DrawingsDrawings

-Completed MicroStation model is then Completed MicroStation model is then saved as a DXF filesaved as a DXF file

-DXF file imported into STAADDXF file imported into STAAD

Horizontal Horizontal Girder and Girder and Vertical Rib Vertical Rib modeled with modeled with on same on same center-linecenter-line

Horizontal Horizontal Girder and Girder and Vertical Rib Vertical Rib modeled with modeled with eccentric eccentric stubsstubs

MICROSTATION MODEL EXPORTED TO MICROSTATION MODEL EXPORTED TO STAADSTAAD

ASSIGNMENT OF SECTION PROPERTIESASSIGNMENT OF SECTION PROPERTIES

ASSIGNMENT OF SECTION PROPERTIESASSIGNMENT OF SECTION PROPERTIES

ASSIGNMENT OF SECTION PROPERTIESASSIGNMENT OF SECTION PROPERTIES

SPECIFICATIONS OF STRUCTURE SPECIFICATIONS OF STRUCTURE MEMBERSMEMBERS

TRUNNION SUPPORT CONDITIONTRUNNION SUPPORT CONDITION

WIRE ROPE AGAINST SKINPLATEWIRE ROPE AGAINST SKINPLATE

WIRE ROPE DRUM ASSEMBLY SUPPORT WIRE ROPE DRUM ASSEMBLY SUPPORT MODELED AS PINMODELED AS PIN

EM LOAD 1 – GATE SITTING ON THE SILLEM LOAD 1 – GATE SITTING ON THE SILL

EM LOAD 1 – GATE SITTING ON THE SILLEM LOAD 1 – GATE SITTING ON THE SILL

EM LOAD 1 – GATE SITTING ON THE SILLEM LOAD 1 – GATE SITTING ON THE SILL

EM LOAD 2 – GATE LIFTING OFF SILL WITH EM LOAD 2 – GATE LIFTING OFF SILL WITH TWO HOIST CABLESTWO HOIST CABLES

EM LOAD 2 – GATE LIFTING OFF SILL WITH EM LOAD 2 – GATE LIFTING OFF SILL WITH TWO HOIST CABLESTWO HOIST CABLES

EM LOAD 2 – GATE LIFTING OFF SILL WITH EM LOAD 2 – GATE LIFTING OFF SILL WITH TWO HOIST CABLESTWO HOIST CABLES

HYDROSTATIC LOADHYDROSTATIC LOAD

HYDROSTATIC LOADHYDROSTATIC LOAD

SIDE SEAL LOAD:SIDE SEAL LOAD:

EM FORMULA FOR ESTIMATING THE SIDE EM FORMULA FOR ESTIMATING THE SIDE SEAL LOAD:SEAL LOAD:

J-BULB RUBB AGAINST PIER

HDROSTATIC HEAD AGAINST J-BULB

SIDE SEAL LOAD:SIDE SEAL LOAD:

SIDE SEAL LOAD IN STAADSIDE SEAL LOAD IN STAAD

TRUNNION FRICTION MOMENTTRUNNION FRICTION MOMENT

Z

Y

X

TRUNNION FRICTION MOMENT – THRUST TRUNNION FRICTION MOMENT – THRUST COMPONENTCOMPONENT

TRUNNION FRICTION MOMENT – CIR TRUNNION FRICTION MOMENT – CIR COMPONENT COMPONENT

TRUNNION FRICTION MOMENT – ARM TORSION TRUNNION FRICTION MOMENT – ARM TORSION COMPONENTCOMPONENT

Modified EM 2702 LOAD CASE 1 - INTERACTION VALUES

Modified EM 2702 LOAD CASE 2 - INTERACTION VALUES

0.964

MEMBER WITH HIGHEST MEMBER WITH HIGHEST INTERACTION VALUEINTERACTION VALUE

CONTROLLING MEMB W/O TRUNNION CONTROLLING MEMB W/O TRUNNION FRICTION MOMENTFRICTION MOMENT

CONTROLLING MEMB W/O TRUNNION CONTROLLING MEMB W/O TRUNNION FRICTION MOMENT, AND SIDE SEALFRICTION MOMENT, AND SIDE SEAL

HAND CHECK OF MODEL- TOM WRIGHTHAND CHECK OF MODEL- TOM WRIGHT

HAND CHECK OF MODEL- TOM WRIGHTHAND CHECK OF MODEL- TOM WRIGHT

HAND CHECK OF MODEL- TOM WRIGHTHAND CHECK OF MODEL- TOM WRIGHT

HAND CHECK OF MODEL- TOM WRIGHTHAND CHECK OF MODEL- TOM WRIGHT

HAND CHECK OF MODEL- TOM WRIGHTHAND CHECK OF MODEL- TOM WRIGHT

HAND CHECK OF MODEL- TOM WRIGHTHAND CHECK OF MODEL- TOM WRIGHT