Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR...
Transcript of Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR...
![Page 1: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/1.jpg)
Precast Spliced U beams
PCI Zone 6 Standards
HSR
Orlando, FL
November 9, 2010
Gregg Reese, P. E.
Summit Engineering
Littleton, Colorado
![Page 2: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/2.jpg)
Purpose and Outline
• How can these new products
help my team? They will get you
quantities quickly.
• Review of standards and details
provided for Spliced curved and
straight concrete U beams
![Page 3: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/3.jpg)
PCI Zone 6 U Beam Go By Sheets
![Page 4: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/4.jpg)
Design Criteria
LRFD plus FDOT SDG with HL-93 Live Loading
1.7 Design Lane distribution factor
Staged construction analysis
SDL includes 3” of FWS
Flexural checked at SLS; ULS;
0 tension under DL conditions
Shear generally controlled by Principal Stress
Torsion > Tcr/2 for open cross section
Deck steel stresses > 24 KSI tension
![Page 5: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/5.jpg)
Typical Cross Section (U-3)
Typical section with constant bottom slab thickness
Typical section with variable bottom slab thickness
Option 2 with precast panels
Option 2 CIP Lid Slab
Option 2 Light Weight Concrete
Option 2 19K6 with 10 inch webs
![Page 6: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/6.jpg)
Girder Geometry (U-7)
![Page 7: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/7.jpg)
Three Span Unit (U-4)
![Page 8: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/8.jpg)
Three Span Unit (U-4)
Maximum Span Lengths
![Page 9: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/9.jpg)
Spliced Simple Spans (U-5)
![Page 10: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/10.jpg)
Maximum Simple Span(U-5)
![Page 11: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/11.jpg)
3 Span Haunched Girder (U-6)
![Page 12: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/12.jpg)
Haunched Girder Geometry (U-7)
![Page 13: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/13.jpg)
3 span tendon profile (U-9)
![Page 14: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/14.jpg)
Splice Details (U-8)
![Page 15: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/15.jpg)
End Abutment Details (U-10)
![Page 16: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/16.jpg)
Expansion Pier (U-11)
![Page 17: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/17.jpg)
Interior Pier with Bearings(U-12)
![Page 18: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/18.jpg)
Integral Interior Pier (U-13)
![Page 19: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/19.jpg)
CIP Deck Cross Sections (U-2)
Note: Curved girders require a lid slab before
deck placement. Illustrated is a CIP Lid slab
that becomes part of 81/2” CIP Deck
![Page 20: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/20.jpg)
Precast Deck Panels (U-3)
![Page 21: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/21.jpg)
Precast Panels (U-14)
![Page 22: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/22.jpg)
Prepared concrete placement
![Page 23: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/23.jpg)
Temporary haunch form (U-3)
![Page 24: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/24.jpg)
Panels and Curb Forming
![Page 25: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/25.jpg)
Bottom Slab Access Hatch (U-15)
![Page 26: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/26.jpg)
Construction Sequence (U16,17&18)
Sheet U-18 Shown
![Page 27: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/27.jpg)
Landing and Bracing (U-19)
![Page 28: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/28.jpg)
Example Erection Plan (U-20)
![Page 29: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/29.jpg)
Summary-Spliced U Girder Bridges
• Pilot Study:
– Standardized Shape
– Span Ranges
– Quantities
– Variety of Application
– Working details that are construction tested
– Variety of Application
– Demonstrates a working methodology for erection
![Page 30: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/30.jpg)
Details and Reminders
• Prestressed SIP forms with full bedding inspection is not allowed at this time.
• No Crush forming for grouting precast lid slabs. FDOT will need confidence in “slab bedding”
• Bottom Flange Access Hatch
• Currently FDOT Requires Lighting in all post tensioned and Steel boxes
Considerations for Design Concept
Approvals
![Page 31: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/31.jpg)
• Spliced I Beams and Pretensioned U Beams do not require “Future PT”. Post Tensioned U beams may be required to have holes in diaphragms?
• Any PT box with interior clearance less than 6 feet will require a Variance to FDOT Practice. i.e.Bottom Flange thickening or 72 inch deep section.
• Limited use of Light Weight Concrete
Details and Reminders
Considerations for Design Concept
Approvals
![Page 32: Precast Spliced U beams PCI Zone 6 · PDF filePrecast Spliced U beams PCI Zone 6 Standards HSR Orlando, FL November 9, 2010 Gregg Reese, P. E. ... Summary-Spliced U Girder Bridges](https://reader034.fdocuments.net/reader034/viewer/2022051405/5a9df42e7f8b9a29228b988d/html5/thumbnails/32.jpg)
Precast Offers Solutions to Challenges