This 6 hour course, design of bridge deck drainage will cover several topics including the rational method for determining the flow rate of stormwater, bridge grade requirements, piping design and other topics that are essential to a safe and efficient design of bridge deck drainage. This report includes several conclusions and recommendations based on the findings. The integral wearing surface is considered in the weight calculations. Design guidelines for bridge widenings, steelreinforced elastomeric bearings fo r pretensioned concrete beams, stru tandtie method, and culverts. Notation of the nds as the source of design requirements in this chapter reflects references in aashto that specify the nds as the most current source of timber design information for bridges aashto. Fatigue life of damaged bridge deck panels strengthened. Hambly, bridge deck behaviour, chapman and hall, 1976, first edition e. Worked examples on bridge design with eurocodes, 1718 april 20, st. Key words bridge deck replacement, precast prestressed deck planks, design, fabrication, construction, early performance 18. In tennessee, the kingsport bridge, which was approximately 2700 ft long, was opened in 1981 with the only expansion joints at the end abutments.
A thesis submitted to the department of civil engineering in partial fulfillment of the requirements for the degree of master of science in civil engineering university of north florida. Comprehensive design example for prestressed concrete psc. Department of transportation bridge deck design using grade 60 steel astm a615, f y 60 ksi and epoxycoated reinforcing steel was compared to deck slab. For longitudinal beam bridges, two conditions are checked in the transverse direction to design the deck reinforcing steel. Policy on lrfd design of specific bridge substructure components. A prototype deck panel of dimensions 160 by 240 cm and 22 cm thickness, supported by two girders was selected to simulate a real bridge deck. So, if the design of the bridge is carried out using the service period structural factors only, it may fail during the construction stage. The theoretical principles has been expounded in the book of edmund c. Design of bridge deck drainage a pdh online course for. Description of input for concrete slab rating program column description unitsdata type.
If bridge maintenance structure is totally separate structure, it shall be designed for hs2044 live load. Mar 19, 2014 click on a datetime to view the file as it appeared at that time. Minor bridge bridge having a total length up to 60 meters. The deck replacement resulted in negligible increase in dead load eyebars were constructed of heat treated rolled carbon 1060 steel bars with forged heads eyebars were designed to break in the shank at ultimate loading. The slab moments from fea agreed reasonably well with the. Investigations on simply supported concrete bridge deck. Click on a datetime to view the file as it appeared at that time. Download bridge book collections civil engineering community. Download bridge design and construction collection. Mb0216 2 6 lumber properties rough dry sizes are 18 larger, both dimensions. An appendix section provides a fully worked design example of a bridge deck panel meeting aashto specifications.
This investigation addresses the lrfd and standard design methodologies of concrete deck slab, deck overhang, barrier and combined barrierbridge overhang. Precast substructures abutments, piers new bridge example plan br 25024 th 61 over gilbert creek. This document is intended as a design manual for the application of grillage analogy method for the bridge deck analysis. The slab must be continuous over three or more supports. But, until further durability testing of this design method is completed, the empirical design method is not permitted for concrete bridge deck design in california ca article 9. The total cost of a bridge deck includes construction, maintenance, repair and rehabilitation of the deck throughout its service life.
The main problem for the bridge inservice was leakage at the original finger. Guidelines for the design and construction of railroad overpasses and underpasses 5 structure shall be designed for e80 load to accommodate any future track needs or modifications. Design step 4 design of deck prestressed concrete bridge design example task order dtfh6102t63032 43 for this example, a slab thickness of 8 in. But, until further durability testing of this design method is completed, the empirical design method is not permitted for concrete bridge deck design in.
Tk is the characteristic temperature of the bridge deck taking into account the effects of extreme daily and seasonal temperatures, generally speci ed in national codes 2. The present simplified design analysis procedures can be used to develop new efficient frp sections and to design frp highway bridge decks and deck stringer systems, as shown by an illustrative. Limit states, combination and partial factors actions, inc. The design example and commentary are intended to serve as a guide to aid bridge design engineers with the implementation of the aashtolrfd bridge design specifications. The construction and early performance of the two ppc bridge deck projects was evaluated.
It is seen that displacements have an increasing trend towards to the middle of the bridge deck. By modelling the bridge deck geometry and stiffness to represent its actual behaviour in the best way c. Actual weights vary depending on species and moisture content. The following design method can be used for normal weight concrete with specified compressive strengths up to 15. Evaluation of performance and maximum length of continuous. The original timber bridge deck was replaced by a steel grid filled w concrete approx 3in in 1941. The document also includes instructional commentary based on the aashtolrfd bridge design specifications second edition, 1998, including interims for 1999 through 2002. Four twoway rc slab specimens wereconstructed, fig.
Structural design guidelines for concrete bridge decks. Introduction to bridge engineering information technology. Refer to section 9, deck and deck systems, of this bdm for information about acceptable deck reinforcement sizes and spacing. This module provides practical information regarding the decking options and design considerations for steel bridges, presenting deck types such as concrete deck slabs, metal grid decks, orthotropic steel. Lrfd bridge deck design bridge deck design requirements are covered under idm chapter 404. Loading single lane of class 70r or two lanes of class a. The deck may consist of 3 girders spaced at 2, 45 m. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Evaluation of the empirical deck design for vehicular bridges. Calculate the internal forces and moments according to eurocodes principles b. See the current staff bridge design memo 601 for descriptions of effective span and general deck slab design information. Example accelerated bridge construction options accelerated.
Many alternatives are available for maintaining a bridge deck, with different costs and timings associated with each. Structural behavior and design of barrieroverhang connection. This chapter documents ndot criteria on the design of bridge decks that are constructed compositely in conjunction with concrete and steel girders and top slabs of castinplace, posttensioned box girders. Performing organization name and address hdr engineering, inc. Departments of transportation adopted the aashto lrfd bridge design specifications during the year 2007, which is mandated by aashto and fhwa. Chapter 14 discusses the design of cip concrete slabs. In the transverse direction, the reinforcement ratio was 0. Policy on lrfd design of specific bridge superstructure components. Bridge prestressed concrete beam design summary of results project name. The tower of a cablestayed bridge absorbs and distributes all the compressional forces of the bridge. The primary function of a bridge deck is to support the vehicular vertical loads and distribute these loads to the steel superstructure.
Steel bridge design handbook steel structures bridges. This investigation addresses the lrfd and standard design methodologies of concrete deck slab, deck overhang, barrier and combined barrier bridge overhang. Book collection consist of structural design and construction of concrete, steel and composite bridges including cablestayed bridges, suspension bridges, truss bridges, beam bridges etc. The present simplified design analysis procedures can be used to develop new efficient frp sections and to design frp highway bridge decks and deckstringer systems, as shown by an illustrative.
Department of transportation bridge deck design using grade 60 steel astm a615, f y 60 ksi and epoxycoated reinforcing steel was compared to deck slab specimens where grade 60 is replaced with crr bars. Evaluation of the empirical deck design evaluation of the empirical deck design for vehicular bridges by georges elgharib, p. Before we began to design we were required to first analyze the bridge conceptually. T0 is the temperature at the time of the bridge completion. The application of lrfd specification initiated numerous research works in this field. A load factor rating example is shown in this subsection. Sep 15, 2017 please for more videos you can visit 20civil. This module provides practical information regarding the decking options and design considerations for steel bridges, presenting deck types such as concrete. Investigations on simply supported concrete bridge deck slab. The deck replacement resulted in negligible increase in dead load eyebars were constructed of heat treated rolled carbon 1060 steel bars with forged heads eyebars were designed to break in. The performance of this bridge suggests that the length of a continuous deck can be over 2700 ft burdette, et al.
Problem on design of rc deck slab part 22 duration. New bridge example plan br 62037 th 36 over keller lake, maplewood pdf new bridge example special provision br 62037 pdf photos. 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. Problem of design of deck slab bridge part 12 youtube. Hastings bridge documentary youtube hastings bridge move part 1. Eurocodes required for concrete bridge design en 1990 en 1991 en 1992 en 1997 design analysis and section design, partial factors design approach, partial factors, foundations, earth pressures etc. Defining the basic parameters of the bridge as seen in figure 1, allowed us to begin to. Dec 02, 2017 problem of design of deck slab bridge part 12. The basic design of the cablestayed bridge goes back almost 500 years. Modern versions started being built in europe after world war ii as costeffective replacements for bridges damaged during the war. Investigations on simply supported concrete bridge deck slab for irc vehicle 717 loadings using finite element analysis international journal of earth sciences and engineering issn 09745904, volume 04, no 06 spl, october 2011, pp 716719 was modeled and the reinforcing steel was ignored.
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