Crowds gathered throughout June as two barges carrying the tower and the jacking frame, which will help construct the i360, arrived on Brighton beach. The giant yellow crane on the seafront – dubbed T-Rex by the construction team – successfully completed the unloading in record time, transferring all the pieces over just 4 days. David Marks, the architect behind the i360, was on the seafront to watch the first set of unloading yesterday and hailed the event as a “major milestone” in the construction project. His business partner, Julia Barfield, the co-director of Marks Barfield Architects, who, together with Mr Marks designed the London Eye, said: “Ten years ago, we set out on a journey to bring the i360 to Brighton. After all the preparation and planning, it is fantastic to see it all coming together.” The i360’s chief executive, Eleanor Harris, said the arrivals were a complete success. She said: “We have been preparing the ground for this arrival since July and now the project will be going up, up, up! The tower is growing quickly Four of the 17 steel cans are already in place – numbers one, two, three and 14 (can number one is the bottom can, can number two is the one on top of can number one, with can number 17 the top can). The 200 tonne yellow crawler crane currently on site lifted those first four cans into place and will, one by one, lift cans 15, 16 and 17 into place where they will be bolted down onto the can below. At the same time, the crawler crane will also lift the remaining sections of the 60 metre high jacking tower into place. What is the jacking tower? The jacking tower is a temporary steel frame that allows the construction team to build the i360 using a jack-up rather than the conventional build- up method. Put simply, the build-up method would require a crane and lifting capacity to above the top level of the tower and would involve working at height in what would be very difficult conditions. The jacking tower is equipped with cable jacking systems attached to a 16 tonne steel collar which fits over the cans and is used to lift the cans up in order for the next can to be placed underneath. The steel collar can be lowered within the jacking tower and be attached to a can. Four strand jacks, each with a lifting capacity of 450 tonnes, will then gradually jack up the cans stacked above, high enough so a new section of tower can be slid underneath using the skidding track – the piece of the jacking frame near the bottom which sticks out to one side. This operation will be carried out ten times over the coming weeks. Can three – which is currently in place but will be removed prior to the first jacking in order to place can 13 – will be re-installed at the end to complete the 162 metre high tower. It will be removed at the end of the tower build. i360 cans arrive on the beach
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Crowds gathered throughout June as two barges carrying the tower and the jacking frame, which will help construct the i360, arrived on Brighton beach.
The giant yellow crane on the seafront – dubbed T-Rex by the construction team – successfully completed the unloading in record time, transferring all the pieces over just 4 days.
David Marks, the architect behind the i360, was on the seafront to watch the fi rst set of unloading yesterday and hailed the event as a “major milestone” in the construction project.
His business partner, Julia Barfi eld, the co-director of Marks Barfi eld Architects, who, together with Mr Marks designed the London Eye, said: “Ten years ago, we set out on a journey to bring the i360 to Brighton. After all the preparation and planning, it is fantastic to see it all coming together.”
The i360’s chief executive, Eleanor Harris, said the arrivals were a complete success. She said: “We have been preparing the ground for this arrival since July and now the project will be going up, up, up!
The tower is growing quickly
Four of the 17 steel cans are already in place – numbers one, two, three and 14 (can number one is the bottom can, can number two is the one on top of can number one, with can number 17 the top can).
The 200 tonne yellow crawler crane currently on site lifted those fi rst four cans into place and will, one by one, lift cans 15, 16 and 17 into place where they
will be bolted down onto the can below.
At the same time, the crawler crane will also lift the remaining sections of the 60 metre high jacking tower into place.
What is the jacking tower?
The jacking tower is a temporary steel frame that allows the construction team to build the i360 using a jack-up rather than the conventional build-up method. Put simply, the build-up method would require a crane and lifting capacity to above the top level of the tower and would involve working at height in what would be very diffi cult conditions.
The jacking tower is equipped with cable jacking systems attached to a 16 tonne steel collar which fi ts over the cans and is used to lift the cans up in order for the next can to be placed underneath.
The steel collar can be lowered within the jacking tower and be attached to a can. Four strand jacks, each with a lifting capacity of 450 tonnes, will then gradually jack up the cans stacked above, high enough so a new section of tower can be slid underneath using the skidding track – the piece of the jacking frame near the bottom which sticks out to one side.
This operation will be carried out ten times over the coming weeks. Can three – which is currently in place but will be removed prior to the fi rst jacking in order to place can 13 – will be re-installed at the end to complete the 162 metre high tower.
It will be removed at the end of the tower build.
i360 cans arrive on the beach
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