Na przykładzie realizacji sześciu obiektów drogowych przedstawiono zastosowanie rusztowań typu Engelhardroro z Wuppertalu (RFN) do budowy przęseł widuktów autostradowych położonych nad drogą krajową nr 18.
2
Dostęp do pełnego tekstu na zewnętrznej witrynie WWW
A new method of rebuilding of composite bridge spans is presented. The method assumes that the cranes are set on the barges put on Vistula River. The old bridge was built as a five simply supported structure and consisted of five prefabricated prestressed girders type WBS combined with the composite reinforced concrete slab. A new one is a continuous five span structure of effective spans: 36,00 m + 36,00 m + 36,00 m + + 37,80 m + 37,30 m consists of VFT composite girders. The main point is that the VFT girders are strong enough at prefabricated state to ensure safe realization of superstructure with this method.
3
Dostęp do pełnego tekstu na zewnętrznej witrynie WWW
Bridge on mountain stream Lubienka has superstructure in a form of 2-span, 4-beam reinforced concrete grid. The bridge cross-section was shaped typically for bridges constructed in the first half of the XX century. The outer beams depth is bigger then the inner beams. Degradation of the structure was caused by water running down the edge beams and next on the bridge beams. The bridge strengthening was designed by increase of the inner beams depth to the depth of the outer beams. The space between the existing deck slab and the new slab was filled with polystyrene foam. The outer beams were strengthen with carbon tapes applied on their bottom. Shearing strengthening was made by bridge widening near pillar and abutments. As the result of the reconstruction is a bridge of class B according to PN-85/S-10030 and durability according to clause 1.3.3 defined in [1],
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.