Structural Design

A professional service provided by Carley Daines & Partners is full highway and drainage design, to both private and adoptable standards.

This is frequently required where our clients (particularly Housing Associations and major house-builders) are proposing to construct new housing estates with associated new highways and drainage infrastructure.

• Over 50 years post qualification expertise between the two managing partners in the Carlisle and Manchester offices giving clients the confidence of a highly successful previous track record.
• Widespread experience of medium and high-rise building design in steel and reinforced concrete leading to economical and cost effective solutions.
  
• The use of the latest structural design and analysis software allowing speedy production of preliminary designs for costing purposes right up to detailed design and construction stages.
• Innovative design and completion of a large number of buildings in forms other than steelwork particularly timber framing and load-bearing masonry.
• Design of specialist foundations to suit high loadings and abnormal or poor ground conditions allowing the development of otherwise unsuitable or marginal sites.
• Further widespread experience on related issues such as basement / retaining wall design and more specialist areas such as the alteration and conversion of major listed buildings.
  

Much of the United Kingdom  suffers from contaminated land due to its industrial heritage.   The mo st common forms of contamination are chemical pollutants present in the ground (typically heavy metals and hydro -carbons) as well as explosive or poisonous gases (methane and carbon dioxide).

The Environmental Protection Act 1990 (Part  IIA) is the principal legislation covering the identification and remediation of contaminated and polluted land.

UK legislation is framed in such a way as to require Risk Assessments of potentially contaminated land, specifically relating to the pollutant/pathway/receptor model.  

Ways of treating contaminated land typically involve either reducing the concentration of the contaminant or breaking the pathway between the contaminant and the receptor.  

Initially, it is normal practice to undertake a Desk Study (sometimes known as a Preliminary Risk Assessment) to identify in advance from historical usage what are likely to be the principal contaminants.

Carley Daines & Partners advise clients extensively in the re-development of Brownfield sites .  Services provided   fall into the following categories:-

• Production of Phase 1 Desk Studies and Preliminary Risk Assessments  

• Phase 2 intrusive investigations involving full geotechnical and environmental testing to determine contamination concentrations, and remediation strategies.

Government policy on the re-development of Brownfield Sites requires many buildings to be constructed on specialist (non-traditional) foundations.  

Carley Daines & Partners have vast experience in the design of specialist foundations, particularly piled solutions, vibro-compacted solutions, and raft type foundations where appropriate.   

The choice of foundation depends on the underlying ground conditions and engineering judgement, paying particular concern to the loadings, the form of construction, and any limiting settlements.

Carley Daines & Partners undertake a large number of projects on individual properties.   These can range from the structural design of major extensions down to the supply of structural calculations to justify a single steel beam that may be required to support an internal wall.

Carley Daines & Partners have undertaken over 10,000 Structural Engineer's Reports over a period in excess of 20 years.   Such reports are frequently required at a time of sale to satisfy a potential purchaser and their Building Society that a property remains in a satisfactory and structurally stable condition.  

Structural Engineer's Reports generally fall into two categories.

Firstly, the engineer may be asked to comment upon   a single specific defect, such as a crack, (say) to a corner of a building, a bulge to a wall, or excessive deflection to the roof structure.   The typical cost of such a report would be in the region of £270.00 + VAT.

Secondly, the engineer might be requested to carry out an appraisal of the building as a whole.   This may be required due to an overall tilt in the building (which is common in coal mining areas) or because there are significant defects in several parts of the building.

The cost of such a report is typically in the region of £330.00 + VAT.

In addition to the above, Carley Daines & Partners organise and undertake the following inspections :-

-            cavity wall tie checks

-            timber and damp surveys

-            drainage reports

In addition to the above, Carley Daines & Partners provide full advice, design, and supervision of remedial works, particularly in underpinning schemes and methods of structural repair and stabilisation.

Carley Daines & Partners have a wealth of experience in major structural design spanning almost 40 years.

This has been gained & developed working for major clients such as Countryside Properties, Barratt plc, Crosby Homes, many health authorities and housing associations.

Steel & concrete frame design

WEASTE BUILDING 1 COMPUTER FRAME ANALYSIS

Detailed are structural design models plus construction photographs of the re-development of buildings 1 & 2 at Weaste bus depot in Salford, to provide around 250 individual apartments.

The design has been completed using the latest 3 dimensional frame analysis programs to provide the client with the considerable benefit of fast-track design leading to highly economical construction.

The programming can be adapted to compare alternative designs in differing materials, particularly steel & reinforced concrete.

WEASTE BUILDING 1 UNDER CONSTRUCTION	WEASTE BUILDING 2 COMPUTER FRAME ANALYSIS

Foundation design

Carley Daines & Partners were requested by Countryside Properties to provide a foundation solution for the construction of a reinforced concrete frame & panel building on deeply filled ground in St Helens that had the additional complication of being affected by shallow coal mine workings.

Following consolidation by grouting of the workings, a pile & reinforced concrete ground beam arrangement was adopted to provide support to the building.

Again, the latest 3 D frame analysis software was employed to design & detail the layout shown.

General design

The practice also utilises the latest software to enable fast economical designs to be produced for all aspects of civil & structural engineering design, again leading to the major client benefit of economical design.

TEDDS BEAM DESIGN CALCULATIONS