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PCI Northeast

Innovations E-Newsletter

Featured Seminar

Precast Prestressed Concrete Bridge Design Class

Tuesday, November 5, 2013; 8:00am – 4:00pm

Location: Vermont Agency of TransportationTraining Center, 1716 Route 302, Berlin, VT

Instructor: Roy L. Eriksson, P.E.; Eriksson Technologies, Inc., Tampa, FL

Program Outline

  1. Introduction to Prestressed Concrete
  2. Preliminary Design
  3. AASHTO Load and Resistance Factor Design (LRFD)
  4. Flexural Design - Stresses
  5. Flexural Design - Strength
  6. PCI Northeast Topics
  7. Vertical Shear Design
  8. Interface (Horizontal) Shear Design
  9. Camber and Deflections
  10. Flange/Deck Design
  11. Miscellaneous (Time Permitting)
  12. Design Examples
    • Single-span, composite NEXT beam
    • Single-span, composite bulb-tee design

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Featured Projects

University of Connecticut Health Center’s Ambulatory Care Center Parking Structure, Farmington, CT

University of Connecticut Ambulatory Care Center Parking Structure

The design-build team charged with creating a five-story, plus slab on grade, 540,000 square foot, 1447 vehicle parking structure on a former surface parking lot on the campus of the University of Connecticut Health Center faced several key challenges. They had to complete the project on a tight schedule to alleviate parking demand, connect the structure to both an existing and an under-construction building, and built it into the side of a hill. To help accomplish these goals, the team specified a precast concrete structural system.

“We specified precast concrete for its speed, economy, and constructability,” says Greg Plasil, project executive for the Fusco/Clark Joint Venture, which led the team. “We really don’t use cast-in-place concrete for this type of structure around here anymore. Whenever we do a garage, it will be with precast concrete due to the benefits.” All the precast components were manufactured and erected by Blakeslee Prestress, Inc. of Branford, CT.

Photo courtesy of Blakeslee Prestress, Inc.

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Wire Road Bridge Replacement,
Merrimack, NH

Wire Road Bridge Replacement

The very first NEXT Beam bridge constructed with joint funding by the New Hampshire Department of Transportation (NHDOT), Bureau of Planning and Community Assistance, Municipal Bridge Aid and municipal funding was constructed on Wire Road over Baboosic Brook in Merrimack, New Hampshire.”

The Quantum Construction Consultants, LLC project design team and the Town Engineer agreed that the selection of the NEXT beam in conjunction with pile foundations and integral short pile cap abutments, offered the best solution for constructing the longer span crossing. The use of the precast NEXT beam would enable accelerated bridge construction (ABC) throughout the winter months thus not requiring the traditional winter shutdown. This ABC approach reduced construction time which reduced project costs and minimized road closure time lines.

All the precast components were manufactured by J.P. Carrara & Sons, Inc. of Middlebury, VT. (Link)

Photo courtesy of Quantum Construction Consultants, LLC.

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Hyatt Place Hotel Portland—Old Port, Portland, ME

yatt Place Hotel Portland

The new 130-room Hyatt Place Portland-Old Port in Portland, ME, Hyatt’s first hotel in Maine, was developed following a three-year study of the neighborhood that revealed a need for more hotel services in the area, according to local reports.

The $14-million project, rising on a former parking lot, features precast hollowcore planks for the combined flooring/ceiling element on the second through seventh floors and for the roof. The hollowcore connects to the building’s steel framing using a patented girder design.

All the precast components were manufactured by Oldcastle Precast Building Systems, Selkirk, NY. (Link)

Photo courtesy of Canal 5 Studio, Portland, ME

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Worcester State University Student Housing, Worcester MA

Worcester State University Student Housing

Construction of a new residence hall at Worcester State University began in spring 2013 with completion slated for fall 2014. To help meet the schedule and provide cost-efficient construction, designers chose precast concrete hollowcore planks for the combined flooring and ceiling elements. They are being erected with a patented steel-girder framing that speeds construction while securing the planks.

The new residence hall, named for Lt. Col. James F. Sheehan, USMC (ret.), a member of the Class of 1955, will house 400 students and feature a community room, dining hall, and outdoor seating overlooking the John F. Coughlin Field.

The girder design, called the Girder-Slab System, allows the hollowcore planks to connect to the steel framing using a patented D-Beam shaped girder. The planks have notches cut into them that allow them to be sealed to the girders with grout quickly and securely.

The hollowcore also will help the project in its goal of receiving Silver LEED certification. Among its attributes are the use of recycled materials, minimal construction waste, local manufacturing and use of local materials, all of which contribute to LEED points.

All the precast components were manufactured by Oldcastle Precast Building Systems, Selkirk, NY. (Link)

Photo courtesy of Oldcastle Precast Building Systems, Selkirk, NY.

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Upcoming Events

NYSSPE 2013 Fall Professional Development Conference

November 1, 2013

Location: The Hilton Garden Inn, 235 Hoosick St., Troy, NY 12180

Resilient Design Considerations for Precast Hollowcore and Masonry Building Systems - 1 PDH Presented By: Keith Lashway, PE, IMI & Rita L. Seraderian, PE, FPCI, LEED AP, Precast/Prestressed Concrete Institute Northeast

Buildings that are designed for resilience can absorb and rapidly recover from natural and man-made disasters. The end result produces buildings that are cost effective, durable and high-performing on a life cycle basis. This presentation will explain how precast concrete hollowcore and masonry structures can help you achieve your high performance project goals.

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Precast Prestressed Concrete Bridge Design Class

Date:  Tuesday, November 5, 2013

Time: 8:00 a.m. – 4:00 p.m.

Location: Vermont Agency of Transportation Training Center, 1716 Route 302, Berlin, VT

Instructor: Roy L. Eriksson, P.E.
Eriksson Technologies, Inc., Tampa, F

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FREE WEBINARS

PCI to Present Webinar on Artist’s Palette: The Aesthetic Versatility of Precast Concrete

Presenter: Brian Miller, P.E., LEED AP
October 24, 2013

The aesthetics of a structure are very important, as it is what most people identify with. High performance materials should provide aesthetic versatility in order to efficiently meet a structure’s architectural requirements. Precast concrete provides incredible aesthetic versatility from providing multiple colors and textures, to developing shapes, forms and very ornate details. Precast can also simulate or be veneered with natural materials providing all of their beauty, but with the added speed, durability, many other benefits of precast. This presentation will provide an overview of the many finishes available with precast concrete, along with methodologies for achieving them. We will also discuss combining multiple finishes into single panels, veneers and embedded materials, selection of mix designs, approaches to achieving colors, proper specification, and procedures to ensure expectations are aligned.

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Tentative PCI Webinar 2013 Schedule

November 21 – The New Sound of IEQ: Indoor Comfort & Acoustic Design

FEATURED LEARN AT LUNCH PRESENTATION

High Performance Architectural Precast Wall Systems

High Performance Architectural Precast Concrete wall systems have gained incredible recognition from sustainability practitioners who herald its durability, energy efficiency, mold/mildew resistance, use of recycled materials, construction waste, and improved construction IAQ. Due to this recognition, these wall systems are being specified in K-12 school construction, condominiums, hospitals, university dormitories, science buildings, office complexes, and many other LEED-certified projects throughout the U.S. Topics that are covered in this workshop include: appearance options; sandwich-wall design; thermal performance; material R-values and assembly R-values; moisture management; and LEED credits to which precast concrete can contribute.

Length: 1.0 Hour | Credits: AIA HSW 1.0 LU | PDH: 1.0

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PUBLICATIONS

PCI Announces New Blast Design Manual

PCI’s Blast-Resistant Design Manual, First Edition (MNL 141-12) is now available as an ePub at www.pci.org/epubs. This manual describes the basic process of blast-resistant structural design for precast/prestressed concrete components. It includes calculating blast loads on the component, determining the dynamic response of the component, checking the response against specified performance criteria, designing the component connections, and checking the component for adequate shear capacity. The emphasis in this manual is on blast loads from exterior explosions and the dynamic analysis of blast-loaded structural components idealized as equivalent single degree of freedom systems. These assumptions simplify the blast-resistant design procedure discussed in this manual, but they apply to many cases of practical interest for anti-terrorism and force protection design. For more details and purchasing information, visit www.pci.org/epubs.

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Curved Precast Concrete Bridges State-of-the-Art Report

This publication details the application of curved precast concrete bridge design, fabrication, construction techniques, and considerations through the study of twelve related projects and constitutes a state of the art report on this topic. The document was written and intended to provide bridge owners, designers, fabricators and engineers an up-to-date reference in developing precast concrete bridge solutions for curved geometric situations. The topics include: Straight Girders chorded from Pier to Pier, Straight Girders Segments with Splices within the Spans, and Curved Precast Girders.  Each case study reviews project specific information, the structural system selected, construction techniques used and the lessons learned. For more details and purchasing information, visit www.pci.org/epubs.

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Updated Fire Publication Now Available on PCI's e-Publication Site

PCI/ICC's Design for Fire Resistance of Precast Prestressed Concrete, Third Edition (MNL 124-11) is available as an electronic publication at www.pci.org/epubs.

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Seismic Design of Precast/Prestressed Concrete Structures, Second Issue

This new manual assists in the design of precast concrete structures using the seismic design provisions of the 2006 edition of the International Building Code. These provisions are discussed in detail and illustrated with examples of typical building and parking structures located in regions of low-, moderate-, and high-seismic hazard.

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Ascent Magazine

Subscribe to PCI's Ascent Magazine (It's FREE!) or if you prefer read it online.

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ONLINE RESOURCES

PCI eLearning

Parking PCI is proud to offer the first education management system dedicated to the precast concrete and precast structures industries, the PCI elearning Center. All courses offered through this system satisfy the continuing education requirements of engineers in all 50 states! As an AIA provider, PCI is able to offer architects approved Learning Units to satisfy their continuing education requirements. Be sure to bookmark us and visit often as we populate this interface with more and more free, easy-to-access, always-available coursework.

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