The Duration of Heating Phase (DHP) concept is the path forward to include in a pragmatic manner the importance of the cooling phase of structural elements in fire safety engineering. This concept is a complementary measure to the standard fire resistance where elements are classified based on testing according to fire resistance standards. The standard […]
The number of tall buildings combining both a visible mass timber structure and large open floor plans is growing rapidly introducing new fire safety challenges. One risk is that of very rapid flame spread in the ceiling, originating from a severe but localized fire, resulting in fires where the majority of large compartments burn simultaneously. […]
The construction sector is of great importance to Sweden and the Swedish economy, with an annual turnover of just over SEK 1,000 billion and employment of approximately 550,000 people. Indeed, the built environment makes up about half of the national wealth. Common estimates show that the sector corresponds to around 40% of Sweden’s total energy […]
Inward-opening doors in evacuation have long been considered problematic, especially at high occupancy levels. The challenge lies largely in an assumed difficulty to open the door when a group of people arrives at the door simultaneously and the door needs to be opened in the opposite direction of the evacuation flow. In older, existing buildings […]
Since 2022, there is a requirement in Sweden that the climate impact generated from the construction phase of new buildings must be declared. The law is planned to be tightened to include more building components and more stages of the building’s life cycle, while also introducing limits for maximum climate impact for buildings. This project […]
At present, concrete has two major issues. On one hand, although concrete is not flammable, it suffers significantly from fire damage. In particular, fire exposure results in spalling, loss of strength and stiffness and as a result, concrete’s load-bearing capacity is reduced. On the other hand, the cement in concrete has a huge carbon footprint, […]
Activities, services, products, energy use, and other aspects of life are increasingly being appraised in terms of sustainability. This is a very positive trend; however, the desire to assess sustainability has exceeded the development of measurable sustainability indicators in some areas. This is the case in many areas of the fire safety sector. From the […]
The national zero vision for fire protection states that no one should be seriously injured or die in fires. Most people who die in a fire can be described as vulnerable. The reasons for the vulnerability vary, but consistently is that the person had a reduced ability to detect, handle and evacuate a fire. If […]
If there are people left in a road or railway tunnel where a fire has broken out and where they in that case are located are likely factors that can be expected to influence on how the rescue operation develops, and on the rescue service’s ability to assist the evacuation. A system for locating people […]