Slab shapes 183k, pdf span by span 162k, pdf there are a number of different beam shapes in the u. After reading this article you will learn about the design of slab and girder bridges. The provisions in this article are meant for slab type bridges and their purpose is to limit deflections under live loads. The primary function of a bridge deck is to support the vehicular vertical loads and distribute these loads to the steel superstructure. Kansas department of transportation design manual volume iii us lfd bridge section version 109 5 1 1 5. These systems include fulldepth prefabricated deck panels and stayinpci journal.
View example in pdf format design example 2 download example as a mathcad workbook zip adhesive anchor examples. The required passage may be for a road, athe required passage may be for a. Nov 23, 2015 components of slab bridge slab footing abutment slab edge beam fig reinforced cement concrete slab bridge stringer 14. Bridge design standards deck slab and steel reinforcement. Conventional slab ongirder design often utilizes the longitudinal steel reinforcement in the deck to resist the negative bending moments created at the internal piers of continuous bridges. Reinforced slab bridge designaashto allowable stress design. Download reinforced concrete strip footing design excel sheet for free. Sep 07, 2017 the term deck slab is mainly related to bridge engineering, where the slab acts as a deck or carraigeway for the vehicles to commute. Tech scholar, structural engineering, malla reddy engineering college autonomous, secunderabad. Design of a 170 m span bridge over the fjord thorskafjordur in iceland. Reinforced slab bridges used for short spans, a solid reinforced concrete slab, generally cast insitu rather than precast, is the simplest design to about 25m span, such voided slabs are more economical than prestressed slabs. Keywords bridge decks prestressing durability design criteria aashto.
Lrfd steel girder superstructure design example concrete deck design example design step 2. Causes and mitigation, cdot report 998, the survey results on four bridges constructed by different concrete mixes indicated that there are still some deck cracking problems, although most of the decks do not have major cracks. Foss in the bridgedeck slab over and between the girders. Civil engineering to provide a passage over an obstacle like a water body, a valley, canal or a road structure is built across that obstacle to span a space and allow the easy movement of the concerned bodies over those obstacles, such a structure is named as bridge. The link connects to the waterstones bookshop to buy online. Steel bridge, deck design, concrete deck, precast concrete deck, wood deck, metal grid deck, orthotropic deck. Introduction scope and background a bridge is a construction built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing. Structural analysis and design of concrete bridges chalmers. Guidelines for design of design of deck slab bridge part 12. This design guide provides a procedural outline for the design of basic slab bridges using the lrfd code and also includes a worked example. Problem of design of deck slab bridge part 12 duration. A 2 2area 2 a c 2 2 posttensioned concrete design table 11 list of symbols used in the aci 31808 code cp area enclosed by the outside perimeter of the section, in a g gross area of concrete, in a 2 l total area of longitudinal reinforcement to resist torsion, in a o area enclosed by the shear flow path, sqin a oh area enclosed by the centerline of the outermost closed. Cracking behavior of structural slab bridge decks january 2015 6.
Structures design office lrfd design examples files pdfs. Fshape barrier into the slab qualify as shear reinforcement strengthening for the outside edges of slabs. Edition elastic plate analysis and design of slab foundations. View deck slab bridge design ppts online, safely and virus free. Development of optimal concrete mix designs for bridge decks. Slab bridge design reinforced concrete strength of materials.
Lrfd steel girder superstructure design example lrfd. Guidelines for design of design of deck slab bridge part 12 duration. The michigan department of transportation incorporates link slabs during deck replacements and deep resurfacing. Lrfd bridge deck design bridge deck design requirements are covered under idm chapter 404. Bridge design standards deck slab and steel reinforcement placement author. Dec 02, 2017 click the below link to download the notes for nominal fee. Policy for archiving bridge design notes in txdots bridge inspection database management system. Design and construction of a reinforcement free concrete bridge deck on precast bulb tee girders. Superstructure is the portion of bridge structure above the substructure level viz. View example in pdf format design example 2 download example as a mathcad. Design of deck reinforcement, including flexural resistance, limits of reinforcement, and control of cracking is based on aashto lrfd bridge design specifications 5. Continuous span structural slab bridge, bridge deck s cracking, crack width, epoxy coated bars,s load testing, fiber.
Free cad detailsthese cad drawings are free download now. Following that a more detailed design of the superstructure is performed. The deck may consist of 3 girders spaced at 2, 45 m. Bridge design manual lrfd 22 txdot 012020 chapter 2 limit states and loads section 1 limit states section 1 limit states importance factor classify all bridge designs as typical bridges when applying the operational importance factor.
Guidelines for design of design of deck slab bridge part 1. Reinforced concrete slab design using the empirical. Design of bridge deck slabs using glass fiberreinforced polymer gfrp bars of different grades. Click the below link to download the notes for nominal fee. Section 2 concrete deck slabs on igirders, ubeams, spread box beams. Slab on metal deck analysis and design both composite and form deck per sdi and aci 31899.
Some of these programs have advanced functionality that not only helps you to create design of deck slab bridge pdf, but also uses the cost calculator to estimate the cost of the project. Guidelines for the design of small bridges and culverts. The transverse free edges of the concrete deck slab may need to be strengthened or supported by. Materials with high tensile strain capacity, such as fibre reinforced concrete frc, can be used for application in the link slab to improve the. Design steps for slab and edge beam a slab design span length span length, s centre to centre distance of the supports. The large majority of bridge decks in the united states are built using castinplace slabs. It will also provide design aids and other sources of information along with cross references to other parts of this manual to assist in the design and preparation of plans.
Use of the modified model for bridge tee and knee joints, design equations, a set of prescriptive design steps in a readily applicable form, and reinforced and prestressed concrete bridge joint. This note discusses the use of the steel free concrete bridge deck technology in continuous span bridge structures. A fullscale model of a continuous bridge deck slab with double cantilever was tested at the university of manitoba, canada 1, to examine the behavior and the ultimate capacity of typical bridge deck slabs reinforced with cfrp. A comparative design of reinforced concrete solid slab bridge. This manual documents policy on bridge design in texas. Dec 02, 2017 i suggest you to listen to the video and make notes of your own, that makes you confident if you still want to download it, its not free please click th.
Purpose of bridgepurpose of bridge a bridge is a structure providing passagea bridge is a structure providing passage over an obstacle without closing the wayover an obstacle without closing the way beneath. This design should always be used unless approval to use a thinner deck is obtained from the state bridge engineer. Slab bridge design free download as powerpoint presentation. Nudeck an efficient and economical precast prestressed.
The elpla limit edition allows users to easily create projects for analysis and design slab floor or raft foundation. Problem of design of deck slab bridge part 12 youtube. Specifically, the design of a continuous steel ibeam bridge is presented using a standard shape rolled ibeam, as an alternative to the preceding plate beam design. Bridge detailing guide the texas department of transportation. Loading single lane of class 70r or two lanes of class a.
Ramakrishna2, associate professor, department of civil engineering, malla reddy engineering college autonomous, secunderabad. The aashto lrfd bridge design specification suggests three different methods for the analysis of bridge decks for slabonbeam systems. Pdf computational analysis and design of bridge structures. Design step 4 design of deck prestressed concrete bridge design example task order dtfh6102t63032 41 design step 4 deck slab design design step 4.
Trais the university of akron 302 buchtel common akron, oh 44325 sjn 4708 11. Design manual for bridges and structures sixth edition, 2016 nj. View example in pdf format design example 1 download example as a mathcad workbook zip castinplace flat slab bridge design. Analysis and design of link slabs in jointless bridges with. Bridge design bridge design books for bs 5400 and eurocodes. Autocad blocks of construction and architectural details. Design procedures for prestressed concrete bridge decks. Design problem design a slab bridge to meet the following requirements bridge clear span 6m bearing width of slab 400 mm carriage way two lane footpath on either side of bridge wearing coat asphalt concrete select type of slab, railing, wearing coat and materials require. Bridge design to eurocodes worked examples worked examples presented at the workshop bridge design to eurocodes, vienna, 46 october 2010 support to the implementation, harmonization and further development of the eurocodes y. Trbs second strategic highway research program shrp 2 report s2r19arw2. Free cad detailsthese cad drawings are free download now spend more time designing, and less time drawing. This help file describes input and analysis features of slab bridge designer 2. Concrete e slab or gir e bridges are implest form type of bridg ypes of cros.
I suggest you to listen to the video and make notes of your own, that makes you confident if you still want to download it, its not free please. What is the difference between a deck slab and a solid slab. The deck is typically continuous along the length, and across the width, of the span of the bridge. For longitudinal beam bridges, two conditions are checked in the transverse direction to design the deck reinforcing steel. The reinforcement of slab can be carried out by one of the following design codes. In situations where the bridge skew exceeds 30 degrees, consult the bearing and expansion joint specialist and the bridge design. Design of reinforced concrete bridges department of civil. Download these free autocad files of construction details for your cad projects.
Voided slab and beam and slab bridges are used for larger, single or multispan bridges. The design principles of a solid slab bridge deck may be illustrated by the following illustrative example. The following design method can be used for normal weight concrete with specified compressive strengths up to 15. Let the crosssection of the deck be assumed as shown in fig. Link slabs are used over the piers developing jointless decks while adjacent bridge spans remain simply supported. This design example presents an alternative design for that presented in design example 2a. Concrete deck slabs can be constructed with castinplace or precast methods.
Pdf design and construction of a reinforcement free concrete. This chapter also addresses corrosion protection measures. Deck overhang design braden cyr bridge engineer may 17, 2017 bridge office mndot. The goal of the study was to implement the most costeffective.
Example on design of slab bridge design data and specifications superstructure consists of 10m slab, 36m box girder and 10m tgirder all simply supported. Concrete deck slabs on igirders, ubeams, spread box beams, spread slab beams, steel plate girders, and steel tub girders anchor. For simply supported spans, this limit is generally found to be nearly 10 metres and for continuous or balanced cantilever type. Debris accumulation in the joints can restrain deck expansion, causing undesirable forces in the deck and damage to the structure. Bridge design guide the texas department of transportation ftp. Behavior and design of link slabs for jointless bridge decks. For deck with a 7 structural slab plus 2 wearing course. Design of bridge slab spreadsheet engineering books. Computational analysis and design of bridge structures. A comparative design of reinforced concrete solid slab bridge for different spans g. Design recommendations for bridge deck slabs reinforced by frp.
Semiintegral construction may be used in lieu of expansion joints for single span bridges under 300 feet with the approval of the bridge design engineer. In addition to this, during construction of the bridge, we established practices for traffic control in. Autocad construction details free download, architectural. Department of civil and environmental engineering virginia polytechnic and state university vctir project manager. Section 8 pretensioned concrete slab beams and decked slab beams. Another concern with the concrete used for bridge decks is the chloride permeability. Refer to districtspecific corrosion protection requirements for regions where bridge decks are exposed to deicing agents andor saltwater. Except as specifically required by this standard, aci 318 shall not be applicable to the design or construction of composite steel deck slabs. These cad drawings include more than 100 highquality dwg files for free download. Coffee shop floor plan pdf coffee shop floor plan autocad in 2019 cafe floor cafe design typical floor plan pdf file in 2019 cafe image detail for floor plan in 2019 coffee shop. Design procedures for prestressed concrete bridge decks author. In circular voided decks the ratio of depth of void depth of slab should be less than 0. Download free sample and get upto 48% off on mrprental. Past experiences from construction failures and learning.
During the last several years, bridge engineers have designed different. On the internet you can find deck design software, which will help you create your own unique project. Design of bridges excel sheets free download category. Unfortunately, this book cant be printed from the openbook. Applying these provisions to the design of deck slabs rarely controls deck slab design. If you still want to download it, its not free please click th. This slab beam detailing and bar bending schedule spreadsheet will focus on how. Slab and girder bridges are used when the economical span limit of solid slab bridges is exceeded. Design a solid slab bridge superstructure having a clear span of 9. Pdf steelconcrete composite bridge design guide researchgate.
Download from so many useful civil engineering files for free. Online users can click here to view this illustration in pdf. Scribd is the worlds largest social reading and publishing site. Hambly covers methods of analysis of various types of bridge decks. Pci has developed preliminary design charts in accordance with the aashto. In this thesis analysis and design of prestressed concrete bridges deck slab. Download bridge design excel sheet bridge design, free.
Only the design of slab bridge will be used for illustration. Structural design guidelines for concrete bridge decks. Past manual notices are available in a pdf archive. However, the situation is preferable to that of jointed decks. Guidelines for design of design of deck slab bridge part 12 leading waves. Download design of bridge structures by jagadeesh, t. Link slab deck joints there is increasing pressure on bridge designers to minimize joints on bridge decks in order to reduce maintenance and longterm rehabilitation costs. Deck overhang design minnesota department of transportation. Maintenance of bridge deck joints is a costly problem.
Aashto lrfd bridge design specifications, fifth edition with 2011 interim revisions. Njdot design manual for bridges and structures 6th edition, 2016 i. Topics covered general overview old practice new practice memo 2017. Structural bridge design bridge analysis software autodesk. There are significant differences between the behavioural aspects of a skewed deck slab and a straight one. This system used load and resistance factors to ensure a stable bridge with sufficient strength. The theoretical principles has been expounded in the book of edmund c. Structural design guidelines for concrete bridge decks reinforced with corrosionresistant reinforcing bars abraham lama salomon graduate research assistant cristopher d. If you need to print pages from this book, we recommend downloading it as a pdf. Bridge design spreadsheet download free bridge design spreadsheet. Bridge design reinforced concrete bridge deck design.
Structural analysis, design of bridges, concrete structures, finite element analysis. This serves as the final report on transportation pooledfund program project no. Pdf 3 analysis and design of deck slab satya narayana. In case of slab bridges the difference between deck level and affluxes hfl shall not be less than 1. One method of achieving this that is gaining popularity in recent years is the use of concrete link slabs. Slab bridges are defined as structures where the deck slab also serves as the main loadcarrying component. Deck slab design spreadsheet civil engineering community. The bridge deck is a vital link in the transfer of load from the fractured. Structural bridge design bridge analysis software integrates loading, analysis, and code checking aashto lfrd, eurocodes, and more throughout the project. Concrete highway bridge deck construction 345r5 fig 2. References to lrfd design specifications refer to the current aashto lrfd bridge design. Hambly, bridge deck behaviour, chapman and hall, 1976, first edition e.
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