| 摘要 |
The product. Composite recast prestressed concrete beam with steel truss. Application in bridge and building construction. The bottom prestressed concrete flange (No 1) and the steel truss (No 2 and 3) are the static elements for the A' phase (dead load of initial precast beam and in situ concrete). The B' phase is the formation of the final section, after strengthening of the additional concrete (No 4). This beam, is produced in factory and then transported and erected into his final position. In situ is completed with steel reinforcement and poured. The method. Use of steel truss instead of classic scaffolding. This truss in incorporated inside the concrete in the factory. The bottom flange of the beam ARCULYS, remains as a part of the final beam. The top flange, can remain or taken out, after the strengthening of the final beam. |
