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Chapter 18 Concrete Slab StructuresWisDOT Bridge Manual Chapter 18 Concrete Slab Structures January 2019 18-3 18.1 Introduction 18.1.1 General This chapter considers the following types of concrete structures: Flat Slab Haunched Slab A longitudinal slab is one of the least complex types of bridge superstructures. It is composed
This publication is the second of two SCI bridge design guides that reflect the rules in the Eurocodes. It gives two worked examples, one for a multi-girder bridge and one for a ladder deck bridge. It is a companion to a publication giving general guidance on composite highway bridge design.
Design of Slab and Girder Bridges (With Diagram)Design a slab and girder bridge with 7.5 m. clear roadway having a span of 12.0 m. between centre line of bearings. The deck may consist of 3 girders spaced at 2, 45 m. centres. The bridge deck will have no footpaths. Loading Single lane of Class 70-R or two lanes of Class A:Let the cross-section of the deck be assumed as shown in Fig. 8.2a.
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Aug 05, 2009 · Here is an easy question. AASHTO Section 220.127.116.11 states that precast deck slabs shall be 7" thick or more. I'm designing a pedestrian bridge and want to employ precast concrete deck slabs, but I am having a hard time swallowing the requirement for 7" slab for a modest deck span that could easily work at 4 1/2 to 5" in thickness.
Plate Specification Guide 2015-2016Spec. Thickness (Max. in.) ¾ > ¾ to 1½ > 1½ to 2½ > 2½ to 4 over 4 - ArcelorMittal USA Thickness (Max. in.) ¾ > ¾ to 1½ > 1½ to 2½ > 2½ to 4 30 - Chemical Composition (%) Unless a range is specified, individual values are maximums Carbon.25 .25 .26 .27 .29 - Manganese - .80/1.20** .80/1.20** .85/1.20** .85/1.20** -
Section 5 Bridge Decks - New York State Department of The thickness of bridge decks for prestressed concrete box and slab beams may exceed the 150 mm minimum shown on the plans. This is especially true for structures with superelevated and curved alignments. For these situations, additional thickness information needs to be provided.
Bridge Software Development International, Ltd. SITE-Blauvelt Engineers Cranberry Township, PA Pittsburgh, PA B S D I DESIGN PARAMETERS SPECIFICATIONS:LRFD Third Edition (2004) STRUCTURAL STEEL:- ASTM A 709 Grade HPS 70W for flanges in negative-flexure regions - ASTM A 709 Grade 50W for all other girder and cross-frame steel CONCRETE:f' c