JC
JOHN CRANNA
STRUCTURAL ENGINEER
ABOUT
I started my consultancy in 1992 having worked for major engineering consultants Ove Arup, Scott Wilson and Halcrow.
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I have worked on large buildings including the construction of the Lloyds of London building.
But since becoming self-employed I have gained experience in the smaller scale of construction for domestic and commercial design.
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I provide a personal and friendly and cost-effective solution to your engineering and building needs. I am a chartered engineer, a full member of the Institution of Civil Engineers and have professional indemnity insurance of £500,000.
DOMESTIC & COMMERCIAL DESIGN
I can provide the design of timber, concrete, masonry and steelwork for domestic and commercial properties.
This can vary from a single beam needed to support the structure above to allow the removal of a wall to multi storey commercial buildings. I use computer aided design to provide accurate and cost-efficient designs, with well-presented details and drawings.
Structural engineering services including site investigations, structural surveys, engineering design of domestic and commercial design for both new build and conversion/alterations.
STRUCTURAL SURVEY
Buying a house is a significant investment and you need to know if there are any potential problems before you commit. A visual survey will tell you what defects there are and the likely cost of repair.
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There may also be the need for a specific problem to be investigated, i.e. when a mortgage valour spots movement or cracking and requires a structural report. This survey is limited to the specific area (unlike a general survey) and can be done quicker and cheaper than a general survey.
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I also carry out surveys of barns for conversion to domestic dwellings as many local authorities require one to be submitted as part of the planning application.
STRUCTURAL STEELWORK
I can design steelwork from a simple beam to support a wall/floor to allow wall removal to industrial portal frame buildings and agricultural buildings.
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Computer design makes the design process easier and quicker especially in the portal frame market for industrial and agricultural buildings. I have a set of programs that designs the frame itself and also the main connections with sections and details.
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I also have a set of load tables for agricultural buildings which give the size of column and rafter, eaves, apex and base connection details, bracing information and foundation sizes for a range of bay centres, spans and eaves heights. This enables the building supplier to be able to conform to CE marking in establishing that a certified design has been carried out for each building.
The tables cost £350. I also have a similar set of tables for grain stores at 20' centres - the price for this is £200.