The new road bridge at Nathdwara in India is part of a mammoth project to build 50 miles (80 km) of new road and bridges to link the key cities of Gomti Chauraha and Udaipur in Rajasthan. It’s going to make a huge difference to the lives of commuters, saving time and money travelling in the region.
The bridge at Nathdwara though, has a steep curve in it and needed seismic stoppers to protect it against earthquakes.
But the stoppers had to be inserted while the bridge was in construction and that wasn’t easy to do, as it was difficult to drill deeply into the reinforced columns that were already in place.
So we were asked to find a solution.
We suggested using our Hilti HIT-HY 200 chemical adhesive in tandem with our HIT Rebar Design Method for shorter anchorage lengths.
Our design method and HIT-HY 200 allowed the stoppers to be fixed in a shallow environment and reduced the anchor depth from an estimated 800 mm to 360 mm. The building teams could then drill easily into the existing columns, inject our adhesive and fix the stoppers.
Our Hilti engineering team also stayed onsite to help in person throughout the process.
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