In this article, structural engineer, Mark Duckett discusses building demolition and the concept of “reverse” construction.
Building Demolition
Remember the game Jenga? In that game, players take turns to remove a block from the constructed structure and balance it on top, creating a taller and increasingly unstable structure as the game progresses. While simplistic in comparison, similar concepts are shared between the game and building demolition work. It should come as no surprise that a structural engineer would have an advantage in playing that game.
Demolition Drivers Elementary P.e. Games To Play
Demolition is defined as the dismantling, razing, destroying, or wrecking of any building or structure.
Demolition can be thought of as the “reverse” of construction; destroying a building as compared to creating it. However, both processes share many of the same engineering principles, construction techniques and safety concerns. Both processes require that the involved parties have an understanding of the type of structure involved and the need to recognize the order in which members must be installed or strengthened as construction progresses, and which members can be safely removed or weakened incrementally as demolition proceeds.
Hazards abound in demolition work. Although Standards of Care do exist to help manage and reduce the dangers associated with this activity (i.e., ANSI, OSHA, etc.), demolition contractors often fail to perform adequate pre-demolition surveys to detect the presence of certain hazards during the demolition process and accidents sometimes ensue. During demolition, instabilities can occur which may not be readily apparent to an unqualified person without structural engineering knowledge.
Accurately recreating a demolition accident requires intimate knowledge of structures and their constituent materials as well as knowledge as to how the structure was likely originally erected. Members and building sections removed during the demolition process sometimes result in inadequate bracing of the remaining building and/or critical members resulting in lateral instability of the remaining building and/or critical members or overloading of remaining building sections and/or critical members. Premature collapse of the remaining structure, or portions thereof, is often the unfortunate result of those errors.
Structural Engineering Investigations
Demolition Division is a math game that helps students with learning division. Tanks with division problems move toward your base defenses. Content: Division facts to 12. Standards: 3.OA.C.7: Fluently multiply and divide within 100. Grades: Grade 3, Grade 4, Grade 5. How to play Demolition Drive 2 Move the mouse to set the location and angle of the ramp, then click to let your vehicle fly. Destroy all vehicles for a 3-star performance worthy of this smashing game. In Number Demolition: 1 to 10, Floyd mans the controls, Roly is the wrecking ball, and your child is in charge of identifying the numbers on the bricks that match the number being called out. Perfect for preschoolers, this math game helps kids build valuable number sense skills and familiarity with numbers 0–10, while also giving them the. Demolition City 2 is a physics-based destruction game by Joey Betz. Mission of the second episode of Demolition City is to take down buildings without causing too much damage to the surrounding environment. Take dynamite, place it on the building and click Boom! Basic character attributes in Fallout 4 are Strength, Perception, Endurance, Charisma, Intelligence, Agility and Luck. Together they form a S.P.E.C.I.A.L. Each attribute has 10 levels, each level lets you use another perk.
Evaluation of demolition cases is best addressed by structural engineers; particularly those structural engineers who also have extensive construction knowledge. Along with structural-specific education, training and experience, knowledge of construction sequencing and techniques are invaluable tools that an experienced structural engineer can bring to a demolition case.
Featured Experts
Mark Duckett, P.E., S.I., S.E.C.B.
Structural Engineer, Special Inspector & Construction Safety Expert
Mark is a licensed structural engineer with over three decades of experience in the design, construction and inspection of all types of structures. He has also worked as a consultant on demolition projects, assisting the demolition contractors. Mark is a Professional Engineer in multiple states and a licensed Special Inspector in the State of Florida.
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