Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Andrea J. Schokker"'
Autor:
Eric S. Musselman, Andrea J. Schokker
Publikováno v:
2010 North Midwest Section Proceedings.
Publikováno v:
PCI Journal. 57:108-132
PCI Journal 108 A new method for estimating time-dependent loss of prestress was introduced in the 2005 interim revisions of the American Association of State Highway and Transportation Officials’ AASHTO LRFD Bridge Design Specifications following
Autor:
Andrea J. Schokker, Nicholas M. Cervo
Publikováno v:
Journal of Bridge Engineering. 15:723-730
Deck patching is a common practice used when bridge decks have local deterioration but do not yet warrant full replacement. Rapid setting patch materials provide a quick and economical way to patch deteriorated areas without significant lane closure
Publikováno v:
International Journal of Impact Engineering. 37:521-529
Portable concrete barriers are commonly used to form a secure perimeter to prevent entry of terrorist vehicle borne improvised explosive devices (VBIEDs). Barrier effectiveness can be compromised when satchel charges are used to breach a protective p
Autor:
Carin L. Roberts-Wollmann, Benjamin Z. Dymond, Andrea J. Schokker, Susan E. Bowers, Thomas E. Cousins
Publikováno v:
Journal of Performance of Constructed Facilities. 23:382-390
This paper presents the results of a detailed inspection of the deck panels of the Woodrow Wilson Bridge installed in 1982. The original cast-in-place concrete deck, constructed in 1962, was replaced with full-depth lightweight precast concrete deck
Publikováno v:
PCI Journal. 53:89-108
Corrosion protection for bonded, internal, posttensioning tendons (PTTs) can be effective. Within structural elements, PTTs can be well protected by a multilayer system that includes sound design of surface treatments; high-quality concrete; corrosio
Publikováno v:
Computer-Aided Civil and Infrastructure Engineering. 20:79-94
Corrosion of the nation's transportation infrastructure is a widespread and costly problem. Efficiency, durability, safety, and environmental concerns have made the inspection and structural assessment of these structures a vital issue. The current s
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 1827:44-52
Corrosion of the nation’s transportation infrastructure is a widespread and costly problem. The most prevalent durability issue in reinforced concrete structures is chloride-induced corrosion of the reinforcing steel. A reliable method of determini
Publikováno v:
Journal of Bridge Engineering. 7:127-133
A series of fresh property tests and accelerated corrosion tests were used to develop grouts that combine favorable grouting properties with good corrosion protection. The grouts were then pumped into a clear duct with multiple drapes to observe thei
Publikováno v:
PCI Journal. 47:32-39
Grouted tendons are found in the precast, prestressed concrete industry in a number of applications, including post-tensioned tendons added for live load and continuity requirements in pretensioned bridge girders. A key property for a high quality gr