What Are Blast Walls?

Have you ever stopped to think about what really happens when an explosion occurs near a building or critical piece of equipment?

How do engineers protect people, structures, and essential assets? Explosions caused by industrial accidents, equipment failures, or external threats release incredible energy that can devastate nearby areas in milliseconds. To reduce those risks, engineers rely on walls designed to shield against explosive effects.

Exterior walls of a building can be engineered to provide adequate protection against an explosion. The term “blast wall” however can be a bit of a misnomer. Most people use this term to describe a cantilever free standing wall used to protect an asset, such as a person, place, or thing, from an explosion. Explosions result in a sudden release of energy in the form of a pressure wave, primary fragments from whatever is exploding, secondary fragments that are engaged by the blast wave, heat, light, and sound. Properly engineered blast walls can do a reasonably job at intercepting direct line-of-sight fragments and associated flammable contents. However, they are of little to no or less value at resisting blast pressure waves and trajected fragments. A blast wall can actually increase the blast pressure in some circumstances.

Read more about blast walls on our website!

Need Blast Design and Protection?

Engineering for blast resistance demands more than simply “building it stronger.” It requires a deep understanding of how energy moves, how materials deform, and how milliseconds can change the outcome. Through advanced modeling, testing, and standards like NFPA-850, engineers can design blast walls and other protective systems that balance safety, practicality, and cost. If you’re responsible for safeguarding facilities or infrastructure, now is the time to evaluate your blast walls and protection strategy—and ensure that it’s grounded in science, not assumptions. Contact us today for an evaluation!

Blast-Resistant Design for Property and Building Owners

Property and building owners and managers should employ a comprehensive approach to blast design:

• Threat Assessment: We work with our clients to define the potential threats, considering factors such as the type and size of explosive, standoff distance, and potential points of attack.
• Performance Objectives: We establish clear performance objectives, defining the acceptable level of damage for different blast scenarios. This might range from minimal structural damage to ensuring life safety.
• Advanced Analysis: We use sophisticated software to model the blast event and analyze the structural response. This includes:
• Blast load modeling: Simulating the complex pressure-time history of the blast wave.
• Nonlinear dynamic analysis: Assessing the structural behavior under extreme loading conditions, considering material nonlinearities and large deformations.
• Design Strategies: Based on the analysis results, we implement design strategies to enhance the blast resistance of the structure. These may include:
•  Ductile detailing: Designing connections and members to deform in a controlled manner, absorbing energy and preventing brittle failure.
•  Stand-Off Distance: Locate parking and roadways to decrease the bomb blast pressures.
•  Redundancy: Build in redundant load paths to minimize the likelihood of progressive collapse.
• Material Selection: Builders should select materials with high strength, ductility, and energy absorption capacity. This may include:
• Ductility: Utilize ductile materials such as steel to absorb the energy from a blast.
• Mass: Utilize heavy cladding to absorb the energy from a blast.

Read the full article on our website!

Blast Design Expertise for Your Business

As technology evolves, so too does physical security design engineering. Integration with cyber security systems and the use of advanced surveillance techniques are becoming increasingly common. This field is constantly adapting to meet the ever-changing security landscape.

By combining engineering expertise with a keen understanding of security threats, physical security design engineers play a vital role in creating safe and secure environments for people and property.

We not only have in-depth knowledge of physical security and blast design criteria; we have access to interpretations and those who make them. Contact us today to learn more!

Blast Design for Defense

In today’s world, the threat of explosive attacks is a serious concern for a wide range of structures, from government buildings and military installations to critical infrastructure and commercial properties.

As a structural engineering company, we understand the importance of designing and constructing buildings that can withstand the devastating effects of blasts.
Understanding the Challenge

Blast events generate extreme loads in a very short time, creating complex dynamic forces that can cause catastrophic damage to conventional structures. These forces include:

•     Airblast: The rapid overpressure wave generated by the explosion.
•     Ground shock: The seismic waves transmitted through the ground.
•     Fragmentation: High-velocity debris propelled by the blast.

The goal of blast design is to mitigate these effects, protecting both the structure itself and the people inside.

Read more on our website!

 Blast Design Expertise for Your Business

As technology evolves, so too does physical security design engineering. Integration with cyber security systems and the use of advanced surveillance techniques are becoming increasingly common. This field is constantly adapting to meet the ever-changing security landscape.

By combining engineering expertise with a keen understanding of security threats, physical security design engineers play a vital role in creating safe and secure environments for people and property.

We not only have in-depth knowledge of physical security and blast design criteria; we have access to interpretations and those who make them. Contact us today to learn more!

Designing for Defense: The World of Blast Design Engineering

Imagine a security system that blends seamlessly with a building's design, deterring threats without sacrificing aesthetics. This is the realm of physical security design engineering, a field that merges engineering principles with risk assessment to create secure spaces.

Security threats come in many forms, from theft to vandalism to terrorism. Physical security design engineers conduct risk assessments to identify potential vulnerabilities and design systems to mitigate them. This might involve blast-resistant walls for government buildings or secure storage cages for sensitive materials.

A prevailing myth about the Physical Security design process is that a consultant can begin their involvement with the project after 35% design of the project is complete. This is too late though, as by this time, sites have been selected and laid out, and the building structural and envelope systems have already been selected.

Risk assessment forms the basis for physical security and bomb blast design. Assets should be categorized and prioritized, threats should be identified regarding aggressors and potential tactics, and you must be aware of any vulnerabilities that could be exploited by these aggressors.

Read more on our website!

Innovative Engineering Inc., Provides Blast Design Expertise

As technology evolves, so too does physical security design engineering. Integration with cyber security systems and the use of advanced surveillance techniques are becoming increasingly common. This field is constantly adapting to meet the ever-changing security landscape.

By combining engineering expertise with a keen understanding of security threats, physical security design engineers play a vital role in creating safe and secure environments for people and property.

We not only have in-depth knowledge of physical security and blast design criteria; we have access to interpretations and those who make them. Contact us today to learn more!

How Does Blast Design Minimize Damage?

We routinely conduct peer reviews of both structural and physical security designs on behalf of the federal government. A fundamental concept used in blast design is the Conservation of Energy Principal – energy cannot be created or destroyed. However, a blast can hit a building and transfer its energy, much like a bowling ball knocking down pins.

Unified Facilities Criteria (UFC) 04-010-01 identifies 21 standards that must be considered for physical security and blast design. 

These standards include but are not limited to standoff distances, unobstructed space, access roads, parking conditions, progressive collapse, and structural isolation. Standoff distance refers to the intentionally designed physical distance or means by which protection is integrated into facilities, personnel, or any other type of asset from a potential threat.

The UFC defines Progressive Collapse as “The spread of an initial local failure from building element to building element, eventually resulting in the collapse of an entire structure or a disproportionately large part of it.” Progressive Collapse can be prevented by adding redundancy and local hardening to the structural design of the building.

UFC 4-010-01 aim to reduce collateral damages and the scope and severity of mass casualties in buildings in the event of a terrorist attack. It encourages the use of cost effective, implementable, and enforceable means of protecting personnel if such an attack were to happen.

Read more on our website!

We Provide Blast Design Expertise

As technology evolves, so too does physical security design engineering. Integration with cyber security systems and the use of advanced surveillance techniques are becoming increasingly common. This field is constantly adapting to meet the ever-changing security landscape.

By combining engineering expertise with a keen understanding of security threats, physical security design engineers play a vital role in creating safe and secure environments for people and property.

We not only have in-depth knowledge of physical security and blast design criteria; we have access to interpretations and those who make them. Contact us today to learn more!

The IEI Physical Security Advantage

More than 4,000 pedestrians, patrons, and employees are severely injured each year, and tragically preliminary data show as many as 500 deaths result from these largely preventable accidents.

Additionally, commercial buildings such as schools, hospitals, and office buildings have such a constant inflow of visitors that security requires more planning than ever.

How can you be sure that your employees, customers, and clients are protected?

Ensuring building security and complying with regulations is essential to making sure your assets are protected. A strong security system can help protect from theft, vandalism, and other types of damage. Many industries also have specific physical security requirements that must be met.

CPTED (Crime Prevention Through Environmental Design)

 CPTED focuses on creating safe environments by using architectural design, lighting, and other factors to reduce criminal activity. The core principles of this approach are:

1. Natural surveillance: Placing architectural features, activities, and people in spaces to maximize visibility. This includes landscaping in such a way that it reduces hiding places for intruders, and allows clear visibility through fences and windows.
2. Natural access control: Having designated ingress and egress points, shaded areas near entrances that allow for more surveillance, and visible hallways and foyers are examples of natural access control.
3. Territoriality: This tactic discourages crime by clearly marking the boundaries of an area, such as transitions between private, semi-private, and public areas, and signage that designates private vs. public spaces.
4. Activity support: Discouraging actions such as loitering, and having a design layout that promotes an open field of view.
5. Maintenance: Keeping up with broken windows, overgrown landscaping, inadequate fencing, and worn or malfunctioning locks.

Learn more about physical security engineering on our website!

The IEI Physical Security Advantage

IEI routinely conducts peer reviews of both structural and physical security designs on behalf of the federal government. Our expertise not only matches that of world-renowned experts in the physical security field, our extensive engineer of record experience brings a unique blend to the project team.
IEI takes a wholistic approach that includes all disciplines. We know what it takes to ensure the physical security requirements get incorporated into the construction documents regardless of discipline. Contact us today to find out how we can help you!

The Importance of Physical Security for Commercial Buildings

Did you know that according to storefrontsafety.org, “every year in the United States there are as many as 22,000 crashes into stores, offices, bus stops, shopping centers, post offices, restaurants, and storefronts?

More than 4,000 pedestrians, patrons, and employees are severely injured each year, and tragically preliminary data show as many as 500 deaths result from these largely preventable accidents.”

How can you be sure that your employees, customers, and clients are protected?

Security Bollards

Security bollards are large posts you often see at the doorways of stores. These are used as both physical and visual barriers, and can protect lives and property by controlling traffic settings.

Vehicle ram-raids have been a security concern for stores for decades, and threaten the safety of employees as well as customers. The damage caused in these incidents is often very extensive and costly, so security bollards are a must for your commercial property.

Blast Resistant Engineering

Make sure your physical security engineer considers blast resistant building practices! In 2020, the city of Beirut suffered a tragic explosion at a port warehouse, which resulted in 150 dead and 5,000 injured.

Buildings are meant to shelter the people inside of them, but when they’re in such close proximity to an explosion, the building materials themselves become the weapons.

You can prevent this type of tragedy in a few ways:

1. Standoff distance – This is the distance to the source of the blast. If the potential blast zone can be predicted based on what kind of hazards are in the area, death and injury can be avoided.
2. Blast-resistant materials – Like in the case of the surprise Beirut explosion, if the location of blast source can’t be predicted, the second most effective protection is choosing building materials that can resist explosive force. Certain materials are made to resist a blast, and cut down on the number of flying shards and debris in the event of an explosion.

Learn more about physical security engineering on our website!

The IEI Physical Security Advantage

IEI routinely conducts peer reviews of both structural and physical security designs on behalf of the federal government. Our expertise not only matches that of world-renowned experts in the physical security field, our extensive engineer of record experience brings a unique blend to the project team.
IEI takes a wholistic approach that includes all disciplines. We know what it takes to ensure the physical security requirements get incorporated into the construction documents regardless of discipline. Contact us today to find out how we can help you!

What is Progessive Collapse and How Does it Relate to Blast Design?

IEI routinely conducts peer reviews of both structural and physical security designs on behalf of the federal government. A fundamental concept used in blast design is the Conservation of Energy Principal – energy cannot be created or destroyed. However, a blast can hit a building and transfer its energy, much like a bowling ball knocking down pins.

The UFC defines Progressive Collapse as “The spread of an initial local failure from building element to building element, eventually resulting in the collapse of an entire structure or a disproportionately large part of it.” Progressive Collapse can be prevented by adding redundancy and local hardening to the structural design of the building.

UFC 4-010-01 aim to reduce collateral damages and the scope and severity of mass casualties in buildings in the event of a terrorist attack. It encourages the use of cost effective, implementable, and enforceable means of protecting personnel if such an attack were to happen.

UFC 04-010-01 identifies 21 standards that must be considered for physical security design. These standards include but are not limited to:

• Building overhangs and breezeways
• Exterior masonry walls
• Windows and skylights
• Building entrance layouts
• Exterior doors

Read the full list and learn more about blast design engineering on our website.

Innovative Engineering Inc., Provides Blast Design Expertise

It is highly advantageous for the physical security consultant to assume Engineer of Record responsibilities. If this does not happen, you will often be left with a report of requirements by the consultant that have not been actually incorporated into the construction documents.

Innovative Engineering will be exhibiting at The Society of American Military Engineers (SAME) Small Business Conference this year at the Georgia World Congress Center! Come get your picture with Bigfoot!

How Does Blast Design Engineering Minimize Damage to Buildings?

The job of a blast design engineer is to understand the risk and consequences of an explosive event, and then to develop methods for reducing the potential harm caused to people and critical assets.

How can you be sure your building is protected and built with the latest standards in physical security?

A prevailing myth about the Physical Security design process is that a consultant can begin their involvement with the project after 35% design of the project is complete. This is too late though, as by this time, sites have been selected and laid out, and the building structural and envelope systems have already been selected.

Risk assessment forms the basis for physical security and bomb blast design. Assets should be categorized and prioritized, threats should be identified regarding aggressors and potential tactics, and you must be aware of any vulnerabilities that could be exploited by these aggressors.

How can blast design minimize damage? Find out more on our website. 

Innovative Engineering Inc., Provides Blast Design Expertise

It is highly advantageous for the physical security consultant to assume Engineer of Record responsibilities. If this does not happen, you will often be left with a report of requirements by the consultant that have not been actually incorporated into the construction documents.

Innovative Engineering will be exhibiting at The Society of American Military Engineers (SAME) Small Business Conference this year at the Georgia World Congress Center! Come get your picture with Bigfoot!