Lecture08 - Design of Concrete Deck Slabs

Lecture08 - Design of Concrete Deck Slabs - Lecture # 08...

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Lecture # 08 The Design of a Deck Slabs
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Load Distribution. The truck shown in the figure in the next slide is clearly transferring most of its load to the stringer immediately below the left front and rear tires. However, the two adjacent stringers also carry some of the load of the truck, since the deck serves to transfer loads to other girders. In addition to the deck, other secondary members help transfer loads, such as the channel diaphragms, cross-frames, etc. The issue is then, how are the loads distributed among the stringers? There are many factors involved in transferring loads, such as: a) the type of deck, b) the spacing S between stringers (girders), c) the spacing of secondary members, d) the stiffness of the deck and stringers, and of the secondary members, e) the type of lateral bracing used, and f) the size of the loads and their position on the deck. The distribution is easily amenable to closed-form calculations. However, AASHTO addresses the issue of load distribution using only the first two, via a
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This note was uploaded on 09/07/2011 for the course CES 5325 taught by Professor Prieto-portar during the Spring '10 term at FIU.

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Lecture08 - Design of Concrete Deck Slabs - Lecture # 08...

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