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2. Orthotropic deck - Wikipedia

   en.wikipedia.org/wiki/Orthotropic_deck

   Thousands of orthotropic deck bridges are in existence throughout the world. Despite the savings and advantages (up to 25% of total bridge mass can be saved by reducing deck weight, as the weight reductions extend to cables, towers, piers, anchorages, and so forth), the US has only about 60 such bridge decks in use as of late 2005.

3. Container chassis - Wikipedia

   en.wikipedia.org/wiki/Container_chassis

   The length of a chassis corresponds to which container size will fit (i.e., a 40-foot-long chassis fits a 40-foot-long container), but some models are adjustable length. [3] A port crane lifts a container from a ship to a chassis for road transport. Twistlocks. Semi-tractor trucks hook up to chassis via the kingpin. When disconnected from a ...

4. Deck (bridge) - Wikipedia

   en.wikipedia.org/wiki/Deck_(bridge)

   A grid deck uses beams and diaphragms as the supporting structure. The supporting system of a grid deck is analyzed using a grillage analysis. A slab deck is one where the deck is analyzed as a plate. If the slab has a stiffness that is different in two directions (at right angles), then the deck is known and analyzed as an orthotropic deck.

5. Stair lift - Wikipedia

   en.wikipedia.org/wiki/Stair_lift

   The rails are, necessarily, of heavy construction to support the load and the drive system is usually accommodated within a tubular section rail or aluminum extrusion. Some models have steel cables inside the tube, others have chains; yet others may use a rack and pinion system. Many wheelchair platform stairlifts are designed and built to order.

6. Modular design - Wikipedia

   en.wikipedia.org/wiki/Modular_design

   Modular design, or modularity in design, is a design principle that subdivides a system into smaller parts called modules (such as modular process skids), which can be independently created, modified, replaced, or exchanged with other modules or between different systems.

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!