Oval
Location: Kennington, London
Client: Keltbray / Berkeley Group
Location: Kennington, London
Client: Keltbray / Berkeley Group
CapabilitiesCapabilities
- Buildings
- Adaptive Re-use
- Strategic Decommissioning
- Structural Engineering
- Construction Method Engineering
- Temporary Works
- Buildings
- Adaptive Re-use
- Strategic Decommissioning
- Structural Engineering
- Construction Method Engineering
- Temporary Works
SummarySummary
Oval Village is a mixed-use development on a 2 hectare sites, providing over 700 new homes, offices, retail and leisure facilities.
Wentworth supported Keltbray on the scheme where they were involved in the remediation of the site, the sheet piling and bulk excavation and the bored piling. A key part of the scheme was the re-use of the iconic Gasholder No 1.
Wentworth supported Keltbray on the scheme where they were involved in the remediation of the site, the sheet piling and bulk excavation and the bored piling. A key part of the scheme was the re-use of the iconic Gasholder No 1.
Oval Village is a mixed-use development on a 2 hectare sites, providing over 700 new homes, offices, retail and leisure facilities.
Wentworth supported Keltbray on the scheme where they were involved in the remediation of the site, the sheet piling and bulk excavation and the bored piling. A key part of the scheme was the re-use of the iconic Gasholder No 1.
Wentworth supported Keltbray on the scheme where they were involved in the remediation of the site, the sheet piling and bulk excavation and the bored piling. A key part of the scheme was the re-use of the iconic Gasholder No 1.
Delivering valueDelivering value
Our initial involvement was several years before the scheme was let. We were approached to look at how the gas holder frame could be dismantled or repaired in situ. The aim was to dismantle the framework, to lower the top of the tank wall and then re-erect the repaired frame on the new capping beam.
It seemed to us that this would present risks from a listed building perspective and that getting approval would be a challenge. We developed an approach that enabled us to support the frame in-situ whilst lowering the top of the tank wall, constructing the new capping beam and new supporting columns.
It seemed to us that this would present risks from a listed building perspective and that getting approval would be a challenge. We developed an approach that enabled us to support the frame in-situ whilst lowering the top of the tank wall, constructing the new capping beam and new supporting columns.
Our initial involvement was several years before the scheme was let. We were approached to look at how the gas holder frame could be dismantled or repaired in situ. The aim was to dismantle the framework, to lower the top of the tank wall and then re-erect the repaired frame on the new capping beam.
It seemed to us that this would present risks from a listed building perspective and that getting approval would be a challenge. We developed an approach that enabled us to support the frame in-situ whilst lowering the top of the tank wall, constructing the new capping beam and new supporting columns.
It seemed to us that this would present risks from a listed building perspective and that getting approval would be a challenge. We developed an approach that enabled us to support the frame in-situ whilst lowering the top of the tank wall, constructing the new capping beam and new supporting columns.
Key scopeKey scope
- Structural Assessment: Review of the strength and stability of the frame under wind load without the inflatable lifts in place. Assessment of the impact of the poor condition of the unrepaired wrought iron frame.
- Temporary Works: Design of the sequencing for the works, detailed design of the temporary support towers and jacking. The scheme worked as a series of towers that were reused several times through the scheme.
- New Structural Elements: The design of the temporary works was coordinated with the geometry of the new build elements and in providing enough working space around these.
- Construction Sequencing: creation of a detailed construction sequence to minimise disruption and ensure the structural integrity of the supported frame. By phasing the works so that we always maintained a suitable stability path we avoided having to interfere with the listed superstructure.
- Structural Assessment: Review of the strength and stability of the frame under wind load without the inflatable lifts in place. Assessment of the impact of the poor condition of the unrepaired wrought iron frame.
- Temporary Works: Design of the sequencing for the works, detailed design of the temporary support towers and jacking. The scheme worked as a series of towers that were reused several times through the scheme.
- New Structural Elements: The design of the temporary works was coordinated with the geometry of the new build elements and in providing enough working space around these.
- Construction Sequencing: creation of a detailed construction sequence to minimise disruption and ensure the structural integrity of the supported frame. By phasing the works so that we always maintained a suitable stability path we avoided having to interfere with the listed superstructure.
Key challenges and solutionsKey challenges and solutions
- Supporting the fragile frame in the temporary condition on support towers needled back to the existing tank wall below the new capping beam.
- Providing lateral stability to these towers whilst enabling the weight of the frame to be transferred by jacking.
- Providing a clear set of information to enable all the stakeholders to engage with the proposal. This was key as the retention of the frame was a key part of the planning approval.
- Supporting the fragile frame in the temporary condition on support towers needled back to the existing tank wall below the new capping beam.
- Providing lateral stability to these towers whilst enabling the weight of the frame to be transferred by jacking.
- Providing a clear set of information to enable all the stakeholders to engage with the proposal. This was key as the retention of the frame was a key part of the planning approval.