progressive collapse

Global Solutions (UK) Ltd. and Petrellus Limited recognising its complementary skills have joined forces to provide a seamless engineering design service, from full QRA through to Materials Selection and Application Design of Fire Protection.

We are involved in many projects from the earliest design and engineering stage through specification definition, material selection, procurement and installation of the systems.

We have developed an approach, which systematically studies the key elements based on actual requirement and need.

Our services can be utilised at any stage of a project, but for the largest gains our involvement should begin at the Quantative Risk Assessment (QRA) stage.

The menu to the right is an overview of these activities with links to our detailed methodology.


Probability based risk assessment goes hand in hand with the resistance to accidental and extreme loads, and emergency response. This approach provides a balance between engineering solutions and judgement based on long industry experience, and both probabilistic and deterministic mathematical modelling. A successful optimum solution is normally achieved by a combination of probability of loss being within the acceptance criteria, a corresponding plant or structure resistance and the emergency response of safety critical systems and personnel.

PFP Fire Blast Study

By assessing the areas affected in the event of fire or blast we can better establish what requires protection. In turn this provides a list of equipment and areas that require protection.

PFP Optimisation

PFP optimisation can be a crucial part of the design element. Once the equipment and structural components have been collated, we then assess the exact requirements by specific evaluation of the structure or piece of equipment.

Experience has taught us that through this systematic approach the areas requiring PFP can dramatically reduced. This can be a crucial economic design element in any project regardless of scale.

Progressive Collapse Analysis

Using computer program Usfos we carry out progressive collapse analyses of structures to monitor deformation and stress during a simulated accident. This process also determines the residual strength beyond first yield and ultimate strength against events such as ship impact and fire. Thus allowing a more tailored solution to be determined.

Material Design and Engineering

The selection of a suitable material and application varies with each project. This can bring new requirements as materials and regulations evolve. We can help you choose the application which best suits your requirements by evaluating the nature of the project and drawing on our diverse experience.

When using the full design process this stage can be simplified as the needs and requirements are reduced by a process of elimination.

Material Performance Evaluation

Each material type has its own set of pro's and con's. As part of our design and engineering remit we have broken down each material type with their own specific advantages and disadvantages, covering, installation, longevity, cost, durability and many other variables.

Life Cycle Cost Analysis

Historically the approach has been to procure materials when they are required. As an integral part of any structure fire protection should be a consideration from the beginning. The diagram below illustrates the true issues associated with procuring Fire Protection requirements illustrating:

  • Why it is required
  • What is required to select a suitable material
  • How it is to be applied.

Design Process

Following the identification of the performance standards for the fire protection we move onto selecting the materials or system required to meet the criteria.

The design process below illustrates how we provide the end user with a final material selection, accounting for many design variables in each specific case.