Vertical ConcreteSlipforming

Scholer-Peterson Concrete ConferenceFebruary 12

Kansas State University

byFred J. Fairchild, P.E.

Department of Grain Science and IndustryKansas State University

Applicable Codes• ACI-318

• ACI-313

Slipform Form

jaYoke

Form Walls

Slipform Form

jaForm Walls

3’-6

”

Slipform Form

jaJack Rod

Jack

Slipform Form

jaChamfer Strips

Jacks and YokesJack Capacities:• 3 Ton• 6 Ton• 22 TonYoke Spacing:• 3-4 Ft. ApartConcrete Placed in 6-8” liftsContinuous Pour 24 hours/day

Round Bins/Structures

Individual Yoke w/ Jack

Multiple Wall Plan

Multiple Wall Plan

8 - 22 Ton Jack

Locations

Multi Wall Yoking

Delta Yoke

Cross Yoke

Standard Yoke

Overhead Beam Structure

Overhead Structure

22 Ton Jack

Slipform Deck

Slipform Processing Plant

Wall Beams Under Deck

KSU FLOUR MILL CONSTRUCTION

PREPARING THE SITE

• September 14, 2005

FORMING FOUNDATION

• Sept 22, 2005

POURING FOUNDATION• October 4, 2005

• 42” Thick

• 809 Yards of Concrete

• 66 Tons of Reinforcement

BUILDING SLIP FORMS

BUILDING SLIP FORMS

BUILDING SLIP FORMS

SLIPPING THE WALLS

• First Pour 8:00AM • Monday, October 31, 2005

SLIPPING THE WALLS

• 9 Ft. High• 7:00PM Monday, October 31, 2005

SLIPPING THE WALLS

• 19 Ft. High8:00AM Tuesday, November 1, 2005

SLIPPING THE WALLS

• 29 Ft. High7:00PM Tuesday, November 1, 2005

SLIPPING THE WALLS

• 39 Ft. High8:00AM Wednesday, November 2, 2005

SLIPPING THE WALLS

• 50 Ft. High7:00PM Wednesday, November 2, 2005

SLIPPING THE WALLS

• 61 Ft. High8:00AM Thursday, November 3, 2005

WALLS FINISHED

• 72 Ft. High7:00PM Thursday, November 3, 2005

WALLS FINISHED

• Continuous Pour

• 83 Hours

• 1406 Yards of Concrete

• 92 Tons of Reinforcement

INSIDE THE WALLS

FORMING THE FLOORS

POURING THE FLOORS

FORMING ROOF DECK

POURING THE ROOF

POURING THE FLOORS

• 5 Floors and Roof

• 100 Yards of Concrete Each Floor

• Last Pour (Roof) February 3, 2006

FINISHING ROOF POUR

Questions ?

Thank You