Principle and modeling of concrete beamslab bridges linear elastic modeling production purposes it can be simplified as a beam or a grid the equivalent stiffness can be calculated from equation 2. To facilitate its familiarisation the institution of structural engineers and. Deicing salts are a major cause of corrosion of reinforcing steel in concrete. From arches to swing leaves, from foundation to superstructure, concrete is clearly a superior bridgebuilding material. Precastcastinplace posttensioned concrete bridge iii. Arches are perhaps the oldest form of bridge construction. Reinforced concrete bridges concrete reinforcing steel. Manual for design and detailing of reinforced concrete to the september 20 code of practice for structural use of concrete 20 2. The key design criteria and checks required by codes are the same regardless of the form of construction. Ence717 bridge engineering concrete bridges reinforced. Currently, glass fibre reinforced polymer g frp is one popular material used in the existing bridges 2. Designs can meet whatever functional, aesthetic and economic criteria are appropriate to the site location and needs of the client.
The piers and deck of a reinforced concrete rigid frame bridge are interconnected with reinforcing steel and their concrete is poured as a unit. By 1982, the sunshine skyway bridge in tampa, florida, had set a new record for concrete bridges, with a main span of 365 m 1,200 ft. Bridge design reinforced concrete concrete free 30day. The lrfd bridge design specifications section 5 specifies the design requirements for concrete in all structural elements.
B uilt in 1915, the diestelhorst bridge was the first and is the oldest remaining reinforced concrete bridge over the sacramento river. Continuous meshes, woven fabrics and long wires or rods are not considered. Mike day everything about concrete 1,042,158 views 27. Fiber reinforced concrete overview for concrete pavement and overlays general overview of fibers used for concrete pavements with an emphasis on macro fibers and their effect on concrete properties and pavement construction. Various components and parts of a bridge such as superstructure, substructure, bearings of concrete and steel bridges, their types, importance, functions are discussed. Longitudinal steel should be detailed in a 2bar alternating pattern, with one of the bars continuous through the slab. Pci standard girder sections types i through iv were developed in the late 1950s and. The superstructure of the bridge structure consists of deck slab, girder, truss etc. These recommendations in pdf ebook, reported by the joint aciasce committee 343 on concrete bridge design, provide currently acceptable guidelinesfor the analysis and design of reinforced, prestressed, and partially prestressed concrete bridges based on the state of the art at the rime of writing the report.
Ncdot bridge inspection files north carolinas slab bridges are monolithic, flat, concrete beams slabs with twisted or roughened reinforcing steel rods concentrated in the lower portion and at either. Ultrahigh performance fiber reinforced concrete elements pdf. Bridge design reinforced concrete concrete free 30. These are for ultimate strength in flexure, shear and. Request pdf reinforced and prestressed concrete bridges concrete is a mixture of sand, gravel, crushed rock, or other aggregates held together in a rocklike mass with a paste of cement and water. Foster the continued growth of reinforced concrete construction. In simple ndi the inspector uses simple manual tools rather than extensive. Concrete bridges semiintegral design is used for prestressed concrete girder bridges under 450 feet long and for posttensioned spliced concrete girder and castinplace posttensioned concrete box girder bridges under 400 feet long. Reinforced concrete is a composite material that is characterized by the combination of the high compressive strength of portland cement concrete, and the ductility and high tensile strength properties of steel, which make it an ideal construction material bertolini et al. Reinforcedconcrete bridges may have various systems. Jun 07, 2019 the piers and deck of a reinforced concrete rigid frame bridge are interconnected with reinforcing steel and their concrete is poured as a unit. Ice manual of bridge engineering ice virtual library. Wisdot bridge manual chapter 27 bearings july 2019 273 27.
Based on the soil test, allowable bearing capacity of soil is 5 ksf. Kansas department of transportation bridge construction manual version 1011 kdot bridge section 1. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. Istructe ec2 concrete design manual 9 foreword the eurocode for the design of concrete structuresec2 is likely to be published as a euronorm en in the next few years. Golden gate park, in san francisco california, is home to the very first reinforced concrete bridge, built in 1889. A more recent type of bridge currently gaining popularity as a signature structure is the cablestayed bridge with a castinplace, reinforced, or segmental deck. Bridge design free download as powerpoint presentation. The prestandard env for ec2 has now been available since 1992. Fiber reinforced concrete overview for concrete pavement and. This material is very good in making shapes on the front of any building and it is less dense than steel. Design manual for bridges and structures sixth edition, 2016 nj. Spans with plate structure are generally used to cover gaps of 618 m. Components parts of a bridge concrete and steel bridges. Fiber reinforced concrete types, properties and advantages.
Ence717 bridge engineering concrete bridges reinforced and. Due to the noncorrosive properties, fibre reinforced polymer f rp bars have been used as the replacement of steel reinforcement in concrete bridge deck slabs, which is an alternative solution to improve the service life of bridges 1. Manual for design and detailing of reinforced concrete to. Overview of fiberreinforced concrete bridge decks final report. Reinforced concrete, concrete in which steel is embedded in such a manner that the two materials act together in resisting forces. Various types of bridges in terms of materials used, crosssection shape and structural. Nonreinforced concrete suffers from the same weakness, but the advent of reinforced concrete with its increased tensile capabilities allowed the reintroduction of the slab span around the turn of the twentieth century. The bridge structure consists of the following components.
Overview of fiberreinforced concrete bridge decks final. Structural design standards for reinforced concrete are established by the building code and commentary aci 31811 published by the american concrete institute international, and uses strength design also known as limit state design. Includes downloadable publications, technical resources, and information on the educational foundation. Extract from the study of heritage significance of pre1948 rta controlled concrete beam road bridges sydney, south west and southern regions history of concrete beam bridges in nsw 1. Archanaa dongre 3 1 assistant pr ofessor, vid ya jyothi in stitute of technology, hyderabad, 500081. Made from fiberglass rovings to give the material its strength, and a vinyl ester resin to ensure its long life, fiberglass rebar has been used for over 20 years with excellent results. Bearings can be fixed in both the longitudinal and transverse directions, fixed in one directi on and expansion in the other, or expansion in. The most common types of finite element used are flat shell elements a beamandslab or cellular bridge deck may. A viaduct a long bridge may be made from a series of arches, although other more economical structures are typically used today. Glass fibre reinforced concrete use in construction. Pci has developed preliminary design charts in accordance with the aashto. Reinforcedconcrete bridge a bridge with reinforced concrete spans and concrete or reinforcedconcrete abutments.
This chapter provides supplementary information specifically regarding the general properties of concrete and reinforcing steel and the design of reinforced concrete. Specifications for road and bridge construction details specifications for reinforced concrete pipe section 701 culvert pipe, entrance pipe, storm sewer pipe, and equivalents section 810 pipe and pipe arches sections 701 and 810 refer to several individual aashto specifications. Reinforced concrete an overview sciencedirect topics. A draft of a manual on condition evaluation of bridges, currently under.
Machine finishing for repaired concrete deck surface. Design of reinforced concrete bridges ice manual of bridge. Fiber reinforced concrete overview for concrete pavement. Piers are designed to resist the vertical loads from the superstructure, as well as the horizontal superstructure loads not resisted by the abutments. Dec 01, 2017 mike day everything about concrete 1,042,158 views 27. Design of a reinforcedconcrete deckgirder highway bridge. Glass fiber reinforced concrete gfrc or grc is a type of fiber reinforced concrete. Annacis, british columbia, canada fraser river construction duration. The minimum spacing of reinforcing bars should preferably be 6 in. Types and design methods of reinforced concrete bridges are presented. Prestressed concrete bridge an overview sciencedirect. Compilation and evaluation of results from high performance concrete projects. Design of reinforced concrete bridges department of civil. Fiber reinforced concrete are of different types and properties with many advantages.
Reinforced concrete is also used for deck slabs and substructures for bridges with main elements of steel or prestressed concrete. Just 35 feet downstream, the lake redding bridge now joins the diestelhorst, built with the same grandeur and style, and evoking the same civic. Manual for design and detailing of reinforced concrete to the. Continuous span reinforced concrete slab bridge vdot.
Maximum chloride ion content of concrete aci 318 maximum type of member cl prestressed concrete 0. Select rc since a reinforced concrete slab is rated. Construction of segmental concrete bridges began in the united states in 1974. Moment of inertia method i gross concrete section only find moment of inertia of gross concrete section see table 11. Bridge information modeling standardization april, 2016 bridge information modeling brim using open parametric objects. An arch bridge is a bridge with abutments at each end shaped as a curved arch. Pdf the concept of sustainable construction has attracted an increased attention. Analysis and design of reinforced concrete bridge structures. Fiberglass rebar product types composites owens corning. Reinforcedconcrete bridge article about reinforced. A reinforced concrete footing fig 3 supports a 12x12 column reaction p100 kips at the top of footing. Prestressed concrete bridge an overview sciencedirect topics.
Reinforced concrete is a composite material that is characterized by the combination of the high compressive strength of portland cement concrete, and the ductility and high tensile strength properties of steel, which make it. This differs from a typical reinforced concrete slab or tee beam bridge, where the deck is separate from and rests upon the piers. Reinforced concrete rc also called reinforced cement concrete or rcc is a composite material in which concrete s relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength or ductility. Manual for the design of reinforced concrete building. Beam reinforcedconcrete bridges are the most common type. Use ltype abutments with expansion joints at the bridge ends where bridge. Blue ridge parkway watauga county bridge 359 over blackberry road east of blowing rock. The reinforcement is usually, though not necessarily, steel reinforcing bars and is usually embedded passively in the concrete before the. Reinforced concrete rc also called reinforced cement concrete or rcc is a composite material in which concretes relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength or ductility. Fiber reinforced concrete can be defined as a composite material consisting of mixtures of cement, mortar or concrete and discontinuous, discrete, uniformly dispersed suitable fibers. The reinforcing steelrods, bars, or meshabsorbs the tensile, shear, and sometimes the compressive stresses in a concrete structure. Safety, costeffectiveness, and aesthetics are generally the controlling factors in the selection of the proper type of bridges 3.
The provisions recommended herein apply to pedest rian bridges. The reinforced concrete slab soon became one of the most opular and p expedient types of small highway bridges figure 18. Request pdf reinforced and prestressed concrete bridges concrete is a mixture of sand, gravel, crushed rock, or other aggregates held together in. P 100k l w frost line soil unit weight 110 pcf 40 20 slab on grade, surcharge weight 120 psf. The type of reinforced or prestressed concrete bridge deck depends mainly on the functional requirements, the structural form, and the main span length of the construction. Distribution statement concrete bridge decksconcrete overlaysfiberreinforced concretefrc deck constructionstructural macrofibers.
There is a nominal strength that is reduced by a factor which must exceed the factored design stress. Concrete members of this type are used for short and medium span bridges. Late in the 1970s, cablestayed construction raised the bar for concrete bridges. Pdf environmental life cycle assessment comparison between two. Fiberglass rebar is a reinforcing material intended to be used in concrete to replace traditional steel type reinforcement. Double tee bridge beams 157k, pdf next bridge beams 104k, pdf pci zone 6 curved spliced girders 1.
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