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BRIDGE DESIGN MANUAL PDF

Wednesday, March 13, 2019


Bridge Design. Manual. (LRFD). M December Engineering and Regional Operations. Bridge and Structures Office. Bridge Design. Manual. (LRFD). M June Engineering and Regional sppn.info pdf. BDC16MB NJDOT Design Manual for Bridges and Structures - 6th Edition, i. Table of Contents. TABLE OF CONTENTS. SECTION 1.


Bridge Design Manual Pdf

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MnDOT BRIDGE OFFICE. LRFD Bridge Design Manual. Minnesota Department of Transportation. Hadley Avenue North • Mail Stop Manual into LRFD Bridge Manual to produce a consolidated manual. Section 3 - Added requirement to submit design calculations in PDF. The author of Bridge Design Manual (BDM) is the Methods Section of the Office of .. sppn.info).

Standard Drawings currently in effect at the beginning of construction for the item may also be used if agreed upon between the Resident Engineer and the Contractor.

The Original signed standard drawings reside at the Vermont Agency of Transportation main office in Montpelier, under the control of the Agency Construction Standards committee.

A modified standard file is specific to a particular job. Standard Drawings are not currently available for download from the shaded states. For convenience, each set of drawings has been compiled into a single downloadable package. January Revision adding information on prestressed concrete double-T beam bridge standard drawings.

The following links will take you to the table of contents for each section of the Road and Bridge Standards.

It is a collection of the department's most commonly used construction drawings. Prior to fabrication beginning, Bridge Brothers was able to provide valuable input in the fabrication methods utilized which resulted in a bridge that achieved the design intent and exceed the client's expectations.

All warranties and representations of any kind with regard to said documents are disclaimed, including the implied warranties of merchantability and fitness for a particular use. Where a significant change to a standard drawing is needed, submit a design deviation request to the State Bridge Engineer.

NDOT Director. The design of the standard steel deck truss bridge is effective for spans of between 12m to 90M. With a view to avoid confusion, same nomenclature of span is considered for culverts and small bridges.

State Standard Drawings. October Revision adding information on concrete slab and girder pan form span bridge standard drawings. Concrete decking is not relocatable, so on these we use a thick 8mm anti-skid galvanised steel decking. This bridge was launched in two trains, one from each side of the river.

Each table lists the name, page number, and title of each standard contained in that section. Road and Bridge. The mission of the Arkansas Department of Transportation's Bridge Division is to provide plans and specifications for safe, efficient, cost effective, and aesthetically pleasing structures, evaluate existing structures for safety and function and manage and monitor present and future needs of existing bridges. The use of these standards for applications other than their intended use may require adjustment to meet all applicable criteria.

LRFD_BridgeDesignManual_Jan (ALL)

Totally revised and enlarged, this new edition of the standard book provides Government-layed specifications for construction of roads, highways, and bridges in details. Authorized Standard Drawings are also available for download by contacting Roadway Design at Important note: Live load — Bridge design standards specify the design loads, which are meant to reflect the worst loading that can be caused on the bridge by traffic, permitted and expected to pass over it.

January Revision adding information on prestressed concrete I-beam bridge standard drawings. Before proceeeding to the Standard and Special Drawing desidred below, please be aware of the "Important Notes" shown below. By using these drawings, you expressly consent to such terms. Also, plans for bridges and walkways you can download, along with other related building information.

Roads and Maritime Services Standard Bridge Drawings are designed for use by all personnel carrying out work for Roads and Maritime-funded bridges or bridges that will become the property of Roads and Maritime in the future, with the aim of ensuring consistency of content and presentation of all drawings for the construction of new bridges or the rehabilitation, maintenance or widening of Poster Print of Standard Drawings.

The design aspects dealt Trail Bridge Design Aids Instructions and Guidelines Introduction: Currently, the Forest Service has many standard plans and design aids for the construction of trail bridges. Road and bridge construction shall be performed according to the standards set forth in this policy. The design must also conform to all other applicable agency requirements.

It also checks the fabrication shop drawings that detail how the components of bridges go together. Below are links to documents and important information for contractors and professional service providers. The standard drawings provided here are considered copies of the original signed standard drawings.

Before proceeding to the Sections shown below, please be aware of the "Important Notes" shown below the links to the sections.

CDOT Staff Bridge manuals, project special provisions, structural worksheets, field log of structures, and technical memorandums. The book is posted on the web and can be printed free of charge at your leisure by clicking the cover image to the left.

These Standard Specifications for Road and Bridge Construction are written to the bidder, before the award of the Contract, and to the Contractor. Referenced Standard Drawings. FLH Standard Drawings. Specifications for Road and Bridge Works. These directions to the Contractor are written as commands.

The purpose of this policy is to provide for the publication of a book prescribing the Standard Specifications for Road and Bridge Construction.

The standard drawings can be downloaded, in PDF file format, from the table below. How to build over a water feature in your backyard garden. Brham Dutt, Director TxDOT has established standards and specifications for the construction and maintenance of highways, streets and bridges.

Thus, Northern and Northwest have experience, knowledge and ability to translate contract information into shop drawings. On bridges with precast components, such as precast adjacent box beams, the bituminous concrete overlay may be placed to match the approach roadway cross section. Preferably, the profile grade of all bridges shall provide for longitudinal surface drainage Clearances Structures Adjacent to or Crossing over Roadways The minimum horizontal and vertical clearance for any structure adjacent to or crossing over a roadway shall conform to the Department s Highway Design Manual.

The provisions of the Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation s Bridges should be considered when the clearances specified in the Highway Design Manual cannot be achieved, and a Design Exception is required to allow a lesser clearance. The lowest portion of a structure mounted sign support shall be a minimum of twelve inches above the lowest component of the fascia member of the bridge to which it is attached Structures Crossing over a Waterways Navigational clearances, both horizontal and vertical, shall conform to the requirements of the U.

Morth standard drawings for bridges

Coast Guard. Permits for construction of a bridge over navigable waterways shall be obtained from the U. The waterway opening shall be consistent with the hydraulic characteristics of the waterway. For additional information, see Article Structures Adjacent to or Crossing over Railroads The minimum horizontal clearance for any structure adjacent to or crossing over a railroad shall conform to the AREMA specifications.

The horizontal clearance for any structure adjacent to or crossing over a railroad shall be in accordance with standards established and used by the affected railroad in its normal practice. The determination of the horizontal clearance shall also consider the economics and constructability of the structure, influence of railroad loads on the structure, site conditions, drainage and utility requirements, railroad access and future track expansion.

The minimum vertical clearance for any structure crossing over railroad tracks is limited by Section 13b of the Connecticut General Statutes.

The minimum vertical clearance for any structure crossing over railroad tracks shall be measured from the top of the rail to the bottom of the structure. If the construction work includes only deck replacement the removal and replacement of the bridge deck and supporting members or minor widening of the structure, and the existing piers or abutments remain in place, the minimum vertical clearance shall be the structure s existing overhead clearance or , whichever is greater Through-Truss Highway Bridges The minimum vertical clearance from the roadway to the overhead cross bracing of a through-truss highway bridge should not be less than Railway Bridges Railway bridge clearances, both horizontal and vertical, shall conform to the AREMA specifications.

These physical properties are indirectly limited by the vehicle regulations in the Connecticut General Statutes. The General Statutes include the following limitations on the dimensions of vehicles using State highways without the need for a permit: Vehicle Width Section a 1 - The width of a vehicle and combination vehicle and trailer, including its load, is limited to , without a permit.

Vehicle Length Section c - The length of the semi-trailer portion of a tractor-trailer unit, including its load, is limited to 48 feet, without a permit.

Vehicle Height Section - The height of a vehicle, with its load, is limited to , without a permit. Vehicle Weight Section a b 7 - The gross vehicle weight weight of vehicle including its load is limited to 80, pounds, on vehicles with a 51 feet wheelbase, without a permit. Axle Weights of Vehicles Section a - The axle weights of vehicles vary and are determined by vehicle type and axle spacing.

It states that the Department will grant a permit for the transportation of any structural beam member or component that measures feet or less and weighs no greater than , pounds provided the individual axle weights on the vehicle and trailer transporting the beam member or component do not exceed 20, pounds. The phrase structural beam may be interpreted to mean any structural member or component Design Requirements The vehicle regulations of the General Statutes and Policy Statement PT establish design guidelines for the length, width, height and weight of prefabricated structural members and components.

To avoid problems associated with transporting materials during construction, prefabricated structural members or components that will require a permit to be transported should be identified early in the design phase.

The maximum member or component shipping length, width, height and weight shall be shown on the General Plan. The actual, as designed, shipping lengths, widths, heights and weights should be shown on the Final Plans for Review. The shipping information will be reviewed by the Oversize and Overweight Permits Section, which will determine if the members are transportable.

If sufficient justification exists, the Office of Engineering will request a waiver of PT and confirmation that a permit will be granted to transport the member in accordance with Section of the General Statutes from the Oversize and Overweight Permits Section.

If sufficient justification exists, the Office of Engineering will request confirmation that a permit will be granted to transport the member in accordance with Section of the General Statutes from the Oversize and Overweight Permits Section.

This special provision addresses the shipping of materials in accordance with the Connecticut General Statutes and the Department s Policy Statement PT If a member exceeds the height and width limits of the General Statutes or the length and weight limits of PT, and the Oversize and Overweight Permits Section confirms that a permit will be granted in accordance with Section of the General Statutes to transport the member, the project s contract documents should indicate that the Department will grant a permit to transport the oversized item.

These features may include a shelf at the face of the abutment stem, ladder stops on slopes, catwalks, ladders, access doors in bottom flanges and the ends of box girders , hand rails and cables, lighting and electrical outlets, and any other facility necessary for the inspection of the structure. The features may also include the design and placement of structural members and components such as generous bridge seats for box girder structures, internal cross frames and bracing in box girders that allow access for bridge inspectors.

For bridges that are excessively wide, where normal inspection equipment cannot access the interior members, the bridge may require permanent movable inspection platforms or permanent catwalks. The need for and type of permanent inspection platforms shall be determined by the Bridge Safety and Evaluation Unit Notice to Bridge Inspectors As a result of a recommendation in Administration Memorandum No. This information shall be contained in the Notice To Bridge Inspectors block.

The manual should contain the instructions, procedures, check lists, diagrams and details necessary to 19 perform a complete in-depth inspection of the various members and components of the bridge. Inspection manuals shall be submitted with the Final Plans for Review.

A note indicating that an inspection manual is available for a bridge should be placed in the Notice to Bridge Inspectors block on the General Plan Inventory and Operating Load Ratings Inventory and operating load ratings shall be determined for all new and rehabilitated bridges carrying vehicular traffic. For the requirements noted below, rehabilitated structures that include a superstructure replacement shall be considered to be new structures.

These rating shall conform to the following: Load ratings shall be performed using the Load Factor Method as set forth in Chapter 7 of the Department s Bridge Inspection Manual, as revised.

Load ratings shall be performed using the following approved Load Rating Software. The P truck weighs , pounds and is on eight axles.

The P truck weighs , pounds and is on nineteen axles. The rating factor for rehabilitated bridges may be less than 1.

The following components shall be rated for load carrying capacity: 1. All types of main superstructure components, such as stringers, floor beams, box girders, adjacent box beams, etc. Piers caps and columns that have only one or two columns and all steel and timber substructure components.

Timber and steel decks. Concrete decks shall not be rated. When there are a large number of components that make up a structure, the components should be compared and the weaker or controlling components selected and analyzed. A minimum of two of each type of component should be analyzed, one of which represents the capacity of the low speed lanes.

The inventory and operating load rating analysis and a summary of the results shall be submitted with the final documents for review. For hand computations, each sheet shall have a heading with the following information: designer s name or company, the subject computation for , State project number, designer s preparer s initials and date prepared, checker s initials and date checked, and sheet number.

The headings of all computation sheets shall be filled in and complete. The use of computers and computer software applications as a tool in the performance of design computations is acceptable. The designer is fully responsible for all his computations performed either by hand or by computer software applications. For hand computations, the sources of all equations, values, constants, magic numbers, charts, graphs and other supporting data used in the design shall be referenced on each and every computation sheet that its use appears on.

When computer output is included in the design computations, it shall be selfexplanatory. If the output is not self-explanatory, an explanation or documentation of the output must be included in the computations and be referenced on all output sheets.

All design, quantity and load rating computations shall be bound separately for individual bridges or structures and include a cover, title sheet, and an index. All computations shall be submitted with the Final Plans for Review Quantity Computations General Once the plans are essentially complete, individual quantity computations shall be made for all items shown on the plans.

The computations shall be complete and 23 accurate and arranged in an orderly fashion so that a person examining them will be able to follow the calculation sequence.

All items shall be clearly labeled. Sketches may be used for clarity. All quantity computations shall be made entirely with US Customary units.

Quantity computations shall be prepared in accordance with the Method of Measurement and the Basis of Payment of the specification that describes the work. The result of a computation shall be a whole number value. The units of the value computed must agree with the Basis of Payment.

Care shall be used in rounding values. Unassigned amounts shall not be added arbitrarily to any quantity computations. Quantity computations shall be furnished to the District Construction Office having jurisdiction over the work for use during construction Lump Sum Items If a lump sum item will be specified more than once in a project or contract such as Structural Steel for two separate bridges , the item names should include site numbers in their description such as Structural Steel Site No.

The use of site numbers with lump sum items accurately defines the limits of work for those items in a project or contract. The site numbers shall be clearly designated on the plans and in the specifications. Unless otherwise directed by the Department, individual quantity computations shall be performed for the following lump sum items to obtain values with the listed units: Item Units Structural Steel Weight of Structural Steel lb Shear Connectors Estimated total number each Abrasive Blast Cleaning and Field Contingency items should not be included in the bid package.

In the past, these items have been used to establish a bid price for an item which may or may not be required for the construction work. At times, the Department has received extremely high bid prices for these low quantity items, and when there is an increase in the quantity, it becomes very expensive for the Department. The 24 Office of Construction prefers to negotiate prices when it becomes necessary to add items to a contract.

If the need for an item is definite, but the quantities are unsure, a quantity should be given that is large enough to attract a reasonable bid price. Token quantities should not be given.

It should not be regarded as fully complete. The following items, where applicable, should be submitted in the order listed to the Department for review and approval: 1.

Environmental Review of the site, 2. Railroad Clearance Diagram, 7. Final Plans for Review, Incorporation of Review Comments, and Final Submission. All pertinent backup data shall be submitted to facilitate the review process.

This work shall conform to the latest edition of the Department s Drainage Manual Preliminary Hydraulic Study A Hydraulic Study is required if the structure requires work within the floodplain of a watercourse or stream with a watershed area exceeding one square mile.

All work within the floodplain must meet the requirements of Sections 13a, 22a and b through h of the Connecticut General Statutes along with the Department s Drainage Manual.This work shall conform to the latest edition of the Department s Drainage Manual Preliminary Hydraulic Study A Hydraulic Study is required if the structure requires work within the floodplain of a watercourse or stream with a watershed area exceeding one square mile.

Concrete decks shall not be rated. The need for and type of permanent inspection platforms shall be determined by the Bridge Safety and Evaluation Unit Notice to Bridge Inspectors As a result of a recommendation in Administration Memorandum No.

BRIDGE DESIGN MANUAL

All quantity computations shall be made entirely with US Customary units. The Report shall be made entirely with US Customary units of measurement. Consider how this technology might change design, construction, project delivery and management, and operation of facilities.

Concrete decks shall not be rated.