Learn free Civil Engineering by Civilustaad about IRAN’S LARGEST PEDESTRIAN BRIDGE,TABIAT BRIDGE

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IRAN’S LARGEST PEDESTRIAN BRIDGE,TABIAT BRIDGE

This iconic pedestrian bridge is designed in three levels. The first level has a café gallery and a coffee shop.

The second level is primarily designed for people who are crossing from one park to the other; they may be biking, walking, skating or riding on a horse carriage.

Lastly, level three, or the stay zone, is a place to stay and explore. 

In the center of the bridge there are stairs and ramps designed to get from one level to another.

The ramps make every levels of the bridge accessible for wheelchairs.

Learn free Civil Engineering by Civilustaad about BRIDGE TENSION CABLES

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BRIDGE TENSION CABLES

A cable-stayed bridge has one or more towers (or pylons), from which cables hold up the bridge deck.

There are four main classes of cable-stayed bridges: harp, mono, star and fan.

 In the harp or parallel design, the cables are almost parallel so that the height of their connection to the tower is proportional to the distance from the tower to their mounting on the deck.

 In the fan design, the cables all join to or pass over the top of the towers. The fan design is structurally better with minimum moment applied to the towers but for practical reasons the modified fan is preferred particularly where many cables are necessary. In the customized fan arrangement the cables terminate near to the top of the tower but are spaced from each other adequately to allow better termination, improved environmental protection, and good contact to individual cables for maintenance.

 The cable-stayed bridge is most favorable for spans longer than cantilever bridges, and shorter than suspension bridges. This is the range where cantilever bridges would quickly grow heavier if the span were lengthened, and suspension bridge cabling would not be further economical if the span were reduced.