lifecycle wood bridge decks

Life Cycle Assessment (LCA) is a method to evaluate all the aspects connected with bridge construction and the associated environmental impacts during its entire life span, including such phases like materials acquisition, creation, ... eco-friendly concrete is similar to shorter less sustainable spans.<sup>2</sup> Subsequent LCA studies by others conducted on bridges have also shown concrete to be a favorable environmental building material in comparison to wood and steel alternatives.3, 4, 5.

A study carried out by the Dutch Ministry of Infrastructure and Environment has found GRP composite to be a highly sustainable alternative to conventional materials like steel, aluminium and concrete in a life cycle perspective," says Fiberline's CEO and owner Henrik Thorning.

components. Studies that compare timber bridges with bridges made from other materials tend to group all types of timber bridge designs together. However, timber bridges are not uniform. Timber deck bridges should be compared with prestressed concrete slab bridge designs and timber girders to steel girders, for example. Research efforts tend to focus on initial costs as opposed to life-cycle costs. Some studies rely on estimates of expected life as a rough indicator of life-cycle costs& ...

bridge Life Cycle Cost. Optimization. Analysis, Evaluation, & Implementation. MOHAMMED ABED EL-FATAH SAFI. Master of Science Thesis. Stockholm, Sweden 2009 ...... Superstructure : The part of structure which supports traffic (include deck. , slab, and girders). Deck : bridge floor directly carrying traffic loads. Hunching : Increase in the depth of a continuous beam at the point of support to withstand the increased moment of bending on the beam. Transition pier. Pier separating.

Life cycle assessment framework for railway bridges: literature survey and critical issues. Guangli Du* and Raid Karoumi. Division ..... energy, transportation, material manufacturing of most industry fields oriented for the average. European condition. IdeMat. Delft. University of. Technology www.idemat.nl/index.htm. Series of common material as glass, metals, polymers, woods, etc. Stripple ..... and a steel I-girder bridge with concrete decking with single span, with& ...

Internal Curing of High Performance Concrete. bridge decks and its Effects on Performance. bridge decks and its Effects on Performance,. Service Life and Life-Cycle Cost. Daniel Cusson, Ph.D., P.Eng. L. D i l Z bi L i. Lyne Daigle, Zoubir Lounis ... saturated wood fibers. IC can compensate for chemical. h i k d lf d i ti shrinkage, reduce self-desiccation, and improve cement hydration, which may result in: reduced early-age cracking,. higher concrete strength and stiffness,. N.

developed deterioration models and updated cost data for Nebraska bridges. Deterministic and probabilistic LCCA using RealCost software for deck overlay decisions, expansion joint replacement decisions, and deck widening versus deck replacement decisions are presented. For deck overlay decision, silica fume overlay, epoxy polymer overlay, and polyester overlay are compared against bare deck with respect to life cycle cost for variable structural life. In expansion joint& ...

By Mark A. Ehlen1. ABSTRACT: Fiber-reinforcedepolymer (FRP) composites are currently being developed and used in bridge decks. This report examines the life~cycle cost-effectiveness of three FRP bridge decks, using a life-cycle cost .... 5 cm diameter wood tubes. wood-Core FRP. FIG. 1. Foam core (not shown). SCRIMP FRP. Keyed slots for connection to adjacent plank. Hollow cores. Pultruded-Plank FRP. Conventional-Concrete bridge Deck and Three FRP bridge decks.

aluminum bridge deck was used to replace an earlier steel and wood deck on Pittsburgh's Smithfield Street bridge in order to increase its live-load carrying capacity. Since that ..... in just a few hours, minimizing the disruption in traffic. Life-Cycle Cost Analysis is Key. For today's application of aluminum alloys to bridges and bridge decks, internally stiffened hollow extruded panels, similar to the U.S. or Swedish designs, are of most interest, and assessment of their economic value.

The main goal of this work is to determine the economic feasibility of Fiber Reinforced Polymer (FRP) as the primary material for construction of short span bridge decks. The analysis is based on a comparison of the lifecycle costs for a cast-in-place steel reinforced concrete bridge and FRP bridge deck over a 60-year time horizon; both have dimensions of 8.0 m (26.3 ft) long by 8.3 m (27.2 ft) wide. The total cost estimate using the FRP material ranges from $82 to $182& ...

best environmentally on the whole, but when it comes to global warming, the wooden bridge is better than the other two. L. G. San Martin in 2011. [3]. LCA of a Spanish railway bridge is a Master Thesis realized by a KTH student (Stockholm,. Sweden), dealing with the Life Cycle Assessment of a steel arch railway bridge with prestressed concrete decking. All stages are taken into account: material stage (raw material extraction, production and distribution), construction (including diesel& ...

bridge Life-Cycle. Cost Analysis. NATIONAL. COOPERATIVE. HIGHWAY. RESEARCH. PROGRAM. NCHRP. REPORT 483 ..... Word documents and in portable document format (pdf); and the bridge life-cycle cost analysis (BLCCA) software. The BLCCA software provides a tool for professionals to apply the life-cycle cost-analysis concepts and methodologies .... the current cost of a particular deck repair as being a standard normal function with a mean of $100 per square meter and a.

of Life-Cycle Damage of Indiana. bridges Due to Overweight Loads. JOINT TRANSPORTATION. RESEARCH PROGRAM. INDIANA DEPARTMENT OF TRANSPORTATION. AND PURDUE UNIVERSITY. SPR-3630 Report Number: ..... Figure 6.1 Deck joints in Indiana. 41. Figure 6.2 Possible intrusion path of chloride ion. 42. Figure 6.3 Procedure of deck joint FE model analysis. 44. Figure 6.4 Condition rating for bridge ages and spalling on deck joint. 45. Figure 6.5 View of 3D deck& ...

LCCA activities are presented for evaluating alternative bridge deck preservation strategies over the useful life of concrete bridge decks in Pennsylvania.

materials relative to conventional materials. This paper provides a step-by-step. project-based approach based on life-cycle costing. minimum performance requirements. and a cost classification scheme that organizes a construction material's life-cycle cost advantages and disadvantages. A case study example of the method ana- lyzes the cost effectiveness of fiber-reinforced-polymer bridge welts relative to reinforced concrete decks. INTRODUCTION. Highway structures are typically& ...

2.1 First Generation. The first generation Chicago-type bascule bridges were built between 1900 and 1910 and have tall through-trusses braced over the roadway. The operating machinery and counterweights are below the deck, and each leaf is turned by the action of fixed pinions that rotate and mesh with curved racks on the tail-ends of the three trusses arching above the roadway. Originally, these bridges had simple, wood frame operator houses and were operated manually.

applications because the materials have advantages over traditional materials like steel, concrete, wood, ... life-cycle costs of PRP and conventional material bridge decks illustrates the economic method. A ... Construction Company, and Mike Lee and Frank Limacher of the California Department of Transportation for their assistance in applying composites to infrastructure projects, and in computing the life—cycle costs of bridge decks. Finally, thanks are due to NIST staff economists& ...

TKK Structural Engineering and Building Technology Publications B. TKK-R-BE3. Espoo 2009. ETSI PROJECT (Stage 2). bridge Life Cycle Optimisation. Editor: Lauri Salokangas ...... Table 6.3. LCC agency cost for the Klenevågen steel bridge. Life span /a = 100. Calculation rent /% = 3. Deck area /m2 = 340. Interval. (years) Cost. Quantity Costs. No of times mp. NPV - factor. Tot cost. %. Tot cost/m2 bridge deck area. New construction ...... concrete bridge and one wooden bridge.