Transcript

Project Delivery Design Considerations Lessons Learned

Rawson SPMT Design

Design Bid Build vs. Design Build Partnering BOS Involvement

Project Delivery

Project Inception

Plans and Specifications

Construction Technical Support

Document& Refine

UDOT FHWA WisDOT

Design Considerations - Guidance

UDOT - Manual for the Moving of Utah Bridges Using Self UDOT- Propelled Modular Transporters (SPMTs)•SPMT Process Manual And Design Guide

FHWA - Manual on Use of Self-Propelled Modular Transporters to Remove and Replace Bridges

Bridge Staging Area Prior to Bridge Move

Design Considerations - Loads

Bridge Staging Area Prior to Bridge Move Bridge Move Final

Design Considerations - Loads

Design Partnering Innovation Updates

Lessons Learned

Travel Path Diaphragms

Lessons Learned - Design

Travel Path Diaphragms Coupler Detailing Miscellaneous Details Schedule

Lessons Learned - Design

Lessons Learned - Partnering

Abutment Panels

Lessons Learned - Innovations

Bridge Manual Specifications

Lessons Learned - Updates

BOS 2013 128/15/2013

Phil’s Slides

13

Bridge Staging Areas ◦ Space requirements◦ Geotechnical

investigation◦ Level terrain for

travel Path◦ Positive drainage◦ Environmental

considerations

Construction

Rawson Bridge Staging – West Span

Rawson Bridge Staging – East Span

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Shoring Towers◦ Two (2) span 45W

girder bridge◦ Timber crane pads◦ Steel shore towers◦ Steel header◦ Anchorage for

lateral loads and stability

Construction

Shoring Tower – West Span

Shoring Tower – East Span

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Self Propelled Modular Transporter (SPMT)◦ Ground

improvements on travel path

◦ Steel plates for turning radius

◦ Space for bracing and existing shore towers

◦ 138’ feet wide ◦ 95’ feet long

Construction

16

SPMT◦ Heavy lift contractor◦ Submittal reviews◦ 35 semi-loads of

equipment◦ Site access◦ Assembled in 48

hours Public viewing area

Construction

17

Pre-Move Deck Crack Inspection◦ Deflection

monitoring during bridge Move

◦ Post move crack inspection

◦ Pier closure pours◦ May 28th to June 23rd

closure window

Construction

18

Pre-cast pier construction◦ Driven pile and cast

in place pile cap◦ Detailed bar steel

placement with template

◦ High early strength masonry

Construction

19

Pre-cast concrete columns

High strength bar steel couplers

Footing to column connection

Column to precast cap connection

8000 psi non shrink grout

Construction

20

Pre-cast pier construction◦ Pre-cast concrete cap ◦ Sections up to 45

tons – Two (2) crane pick

◦ Grouted bar coupler Connection to columns

◦ Tight construction tolerances

◦ Survey control

Construction

21

Pre-cast pier construction

Lessons learned:◦ Detail additional room

for bar couplers◦ Comprehensive

survey control◦ Steel templates for

bar steel◦ Match cast pre-cast

elements

Construction

22

Keys to Project Success◦ Public outreach and

involvement◦ Close coordination with

prime and heavy lifter◦ Travel path preparation

and planning◦ Project partnering with

stakeholders

Construction

Rawson Bridge Move

***Bill to Insert SMPT Bridge Move Video ***


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