A project that we had already taken beyond the borders of Italy in September, when Eng. Costa illustrated in Istanbul, as part of the tenth International Symposium on steel bridges organized by TUCSA and ECCS, the design of the new arch bridge over the Adige river.

Here are some details on the bridge in question:
The road and cycle-pedestrian bridge over the river Adige in Egna is a steel bowstring arch bridge with a single span of 81.4 m. The deck has a multi-cellular box section with an upper deck made of an orthotropic plate. It’s supported by a single inclined arch with trapezoidal section placed in an eccentric position with respect to the cross section; the hangers are made up of I-section profiles with variable height as well as the cantilevers arranged at a spacing of 3.3m to support the cycle and pedestrian path which are external to the cross section of the deck.
The deck will be launched on temporary supports consisting of roller bearings on abutments and a trolley on launching yard. To reduce the cantilevered span, a lattice prop on arrival abutment and a 36m-launching nose are provided; a rear nose will be used for the final launching phases.
The assembly of the work has been completed and the finishing works are nearing completion, the load tests for the static testing of the work will be carried out in December, in anticipation of the opening to the public.
Thanks again to all the CTA organization for the prize awarded to us, we take the opportunity to show you the poster of the winning project, and some photos taken during the days at the CTA (29 September – 1 October 2022 – Francavilla al Mare)

Today we inform you that on the Strade e Autostrade website there is talk of the launch of the overpass on the A22, in Egna.
A launch which, to avoid excessive obstructions to the road system, was carried out at night, and in a record time of around 3 hours.
To read the article and learn more about this last phase, here is the link: https://www.stradeeautostrade.it/ponti-e-viadotti/un-ponte-sopra-ladige/
Steel Project Engineering took care of the executive project and the assembly of the metal decks of this overpass.

Here is the project in brief:
The overpass on the A22 motorway at Egna is composed by a single span of 46 m with a bowstring arch with eliminated thrust supporting a 6.5m-wide carriageway, pedestrian walkway and cycle path.
It consists of a straight steel deck with an orthotropic plate, supported by a single arch, also in steel, inclined at 20° from the vertical and located laterally, in an eccentric position with respect to the longitudinal axis. The arch has an irregular pentagonal box and a jib of 7.5 m from the deck. The arch-bridge connection is made by means of welded double T-shaped hangers with variable section.
The deck consists of a multi-cellular caisson with 4 cores with a maximum height of 1.4 m with 3.3m pitch diaphragms. The cycle path and the pedestrian walkway, with a usable width of 2.8 m and 2.5 m, are supported by double T brackets with variable height, according to the pitch of the diaphragms.

10th International Symposium on Steel Bridges

We are happy to inform you that Steel Project Engineering has been accepted to participate in the “10th International Symposium on Steel bridges – for a Green planet”, a great event on steel bridges which will run from 20 to 22 September 2022 in Istanbul, Turkey.
The conference has been organized by ECCS members, under the umbrella of European Convention for Constructional Steelwork, since February 1988.

At this event we will present the bridge over the Adige river, an arch bridge that we had already told you about in March (click here to read the article) and whose launch was completed a few months ago.

For further information on the event, visit the official page https://sbic.tucsaevent.org.

Here are some photos of the bridge over the Adige river in the launching phases and in the final position.

OICE

Steel Project Engineering has been an OICE affiliate since June 2022