Twenty-six are injured Panicstricken, Those on the Porch Fight Desperately and Thousands Clamor About the Scene". ^ "100 plunge into pit as porch collapses Storm-bound Men, Women, and Children in Claremont Park Dropped Into a Cellar.^ "22 Injured in Collapse of Porch At Cocktail Party in Newport, R.I.". "Second-floor porch collapse leaves 18 hurt". Many buildings constructed in the 1950s and 1960s are undergoing repair or removal of such balcony structures at considerable cost. Since they are relatively thin and unprotected from the weather, they are vulnerable to corrosion of reinforcing and potential collapse. Many buildings have been designed with the concrete slab extending through the exterior walls to form balconies. High-rise apartment buildings are typically constructed from reinforced concrete. In recent years building codes have been re-written to require direct structural connection to the adjoining structure, as well as cross-bracing to withstand sway. The inherently weak connections were prone to failure, resulting in collapse with injuries and occasional death. When decks became a popular feature, construction practice did not keep up with the new fashion, resulting in many decks that were simply nailed to the side of their houses. Deck collapse Ī related hazard is the collapse of decks built as outdoor extensions of single-family homes. In June 2008, a third-story balcony collapsed in Ottawa, injuring six persons. The disaster inspired a 2005 episode of the ER television show. The weight of approximately 70 people caused the recently renovated porch of the 1890s vintage building to fail. Ī Chicago porch collapse during a get-together in the Lincoln Park neighborhood in 2003 killed 13 people. People have been killed and injured by collapses of wooden porches in other cities as well. While not an everyday occurrence, collapses happen often enough in Chicago that city building inspectors make a point of checking porches when making inspections. Architect Stanley Tigerman said that in New York City one finds steel fire escapes, but in Chicago, the distance to alleys behind multistorey brick buildings encouraged the construction of wooden multistorey porches. The phenomenon is associated with older or poorly constructed multistorey apartment buildings with wooden porches. Many older porches were built before codes required them to be able to support a legally mandated load of so many pounds per square foot or metre, and porches are often not as sturdily built as interior structures. After years of rain and snow, it may be from rotted wood, soil subsidence under the porch foundation, rust of nails and fasteners, and not being built to specifications required by modern-day building codes. It may be from the weight of furniture/appliances, wading pools, or air conditioner compressors. Overoccupancy can result from guests filling a porch at a party, from people seeking cooler breezes during a heat wave, or from people filling a porch while seeking shelter from the rain. The collapses have a number of causes, including overloading due to excessive weight from overoccupancy (too many people). Porch collapse or balcony collapse is a phenomenon typically associated with older or poorly constructed multi-storey apartment buildings that have wooden porch extensions on the front or rear of the building.
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