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"Ooapas" Bridge
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Introduction
In the last decades the construction of Bridges in Mexico has shown a substantial increase,reason why it has presented the necessity of different types of prestressed concrete girders.
MEXPRESA was founded in 1976 as a company that offered post-tensioning services, and as always trying to offer the best technological solution, enlarges the range of products and services with the precast beams solution for any type of beams cast in place.
AASHTO type girder
| Properties | ||||||||||
| Type | H (cm) | B1 (cm) | B2 (cm) | Span (m) | A (cm²) | |||||
| I | 71 | 40 | 30 | 10 a 13 | 1,743 | |||||
| II | 91 | 45 | 30 | 12 a 18 | 2,325 | |||||
| III | 115 | 56 | 40 | 16 a 24 | 3,629 | |||||
| IV | 135 | 66 | 50 | 21 a 30 | 4,974 | |||||
| V | 160 | 71 | 107 | 27 a 36 | 6,463 | |||||
| VI | 183 | 71 | 107 | 33 a 42 | 6,923 | |||||
NU Type girder
| Properties | ||||||||||
| Type | H (cm) | B1 (cm) | B2 (cm) | Span (m) | A (cm²) | |||||
| 180 | 180 | 101.0 | 125.5 | 38 a 42 | 6,4620 | |||||
| 240 | 240 | 100.5 | 125.0 | 42 a 52 | 7,4220 | |||||
BOX type girder
| Properties | ||||||||||
| Type | H (cm) | B1 (cm) | B2 (cm) | Span (m) | A (cm²) | |||||
| 115 | 115 | 85 | 200 | 13 a 18 | 5,5625 | |||||
| 135 | 135 | 81 | 200 | 20 a 30 | 5,8614 | |||||
| 150 | 150 | 81 | 190 | 30 a 35 | 5,871 | |||||
| 170 | 160 | 80 | 190 | 35 a 40 | 6,623 | |||||
“T” and “DOUBLE T” type girder
| Properties | ||||||||||
| Type | H (cm) | B1 (cm) | B2 (cm) | Span (m) | A (cm²) | |||||
| T | 120 max | variable | 300 | 15 a 20 | variable | |||||
| Doble T | 90 max | 9 | 300 | 20 a 25 | variable | |||||
