Uses: PRETENSED or POSTENSED VEHICULAR BRIDGES structure. Due to, its transversal section, the prestress steel is located in the lower bulb, this allows the right behavior to exploit all the prestress advantages. Its top part works as a corbel which allows to receive and support in all its length all the services requests (alive and death weight). Because they are used as bridge’s superstructures, between each element the formwork reinforced concrete tablets is placed. With the tablets or formwork placed it is possible to make the casting of the compression firm.
|AASHTO BEAMS PROPERTIES|
|TIPO||CANT (cm)||UPPER WIDTH(cm)||LOWER WIDTH (cm)||LENGTH MIN-MAX (m)||TRANSVERSAL SECTION AREA (m2)|
|I- I (MODIFY)||54||59||59||10-13||0.2106|
|I – VI||183||71||107||33-42||0.6911|