Top-Down Demolition Method Removes Need for Scaffolding


Italian firm Despe has found a way to innovate the demolition business by turning things upside-down. Their method (called the TopDownWay) involves assembling a three-story modular steel platform with retractable walkways and framework on top of the tower and deploying hydraulic support jacks on the existing columns of the building to support the full load. By working in three-story sections, it limits demolition activities to the upper floors of the building until it’s completed and the whole frame can be hydraulically moved down the succeeding three floors to begin the next demolition phase. The whole system can also be fully set up in just 20 days and offers a competitive cost for buildings exceeding 75 m to 80 m in height. It eliminates the need for traditional methods that enclose the whole structure in scaffolding (which can be costly and take a long time to setup) and also gives a better alternative to implosion (which can pose a hazard in dense cities and with active buildings nearby). This system, and it’s equivalent cost, can now give owners of old buildings a reason to consider replacing the old structure with a better one instead of just gutting and renovating it. Read the full article here…

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