A precast concrete slab for forming a deck in a bridge superstructure has a chamfer on forward and trailing edges so that adjacent slabs can mate. The slab is reinforced with bars which protrude laterally from the slab on opposite sides and which, in use, extend over support beams. Selected...
seismic design and performance of precast concrete segmental 热度: 1 Precastprestressedhollowslabdeckand installationof Abstract:Aimedatsmallandmedium-spanbridgeswidely usedinprestressedhollowslabbridgecross-sectionformof thisshortcoming,anewtypeofdual-archsectionoftheform- ...
Full-Depth, Precast Post-tensioned Concrete Bridge Deck Slab System: Experimental Evaluation, Observations, and Recommendations. American Concrete Institute International ACI Structural Journal, 104 (3) (2007), pp. 322-330 Google Scholar 12 Issa, M.A. Evaluation and Recommendation of Overlay Materials...
Compared to cast-in-situ methods, a half-slab structure saves man-hours and material costs. As the name implies, the half slab is only a half-precast slab, which requires additional reinforcement and concrete topping in-situ. The half slabs need underneath support before topping pouring. Prefab...
A simplified full-depth precast concrete deck panel system for accelerating bridge construction(ABC) is introduced and a finite element analysis(FEA) is conducted to investigate the static and dynamic responses of this conceptual deck system. The FEA results are compared to those of the traditional ...
Prestressedconcrete bridgedecks built by thebalanced cantilever construction methodcan be used for spans from about 50 m to even up to 300 m. This method involves assembling the elements of the deck by building outwards from either side of the piers symmetrically. Each segment of the construction...
Full-scale precast concrete deck slabs designed for bridge structures were tested to failure under simple bending with varying levels of roughness between the precast concrete slab and cast-in-place concrete topping slab. Because no horizontal shear slip occurred between the precast and cast-in-place...
concrete deck slab Precast concrete deck slabPrecast concrete deck slabComplete Patent Searching Database and Patent Data Analytics Services.doi:USD466234 S1Steven Robert BotUS
Precast concrete roof deck slab This invention relates to a pre-cast concrete roof deck slab. As is well known, the roof deck slabs now in general use are of similar dimensions and manufactured from light-weight aggregates to reduce the weight thereof about 50% or appr... Nagel, George E...
This is actually the case of concrete segmental bridges, whose static scheme is continuously varying during the construction stages, while creep deformations evolve in the already constructed parts of the bridge (Chiorino and Lacidogna 1993; Chiorino et al. 1984). This is furthermore true for the...