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Ceremony held to remember the LAmbiance Plaza collapse in Bridgeport

The building collapsed because of problems with its lift slab construction method. While L’Ambiance Plaza was designed to be safe once it was completed, during construction it had a considerably lower factor of safety. Building regulations do not sufficiently consider structural safety during construction and should be changed to require a high standard of safety during construction as well as after a buildings completion. In the absence of such regulations, however, an ethical engineer must always consider the safety of the workers .

He notices the building did not go up on columns with steel flooring and steel eye beams. LeBel believes building’s architecture was insufficient from the start, although the cause of the collapse remains under investigation. NEW HAVEN, Conn. _ Families of 28 men killed in the L’Ambiance Plaza building collapse and the 16 men who were injured will share $30 million under a tentative $41 million settlement of all lawsuits, a judge said Tuesday. Rescue workers searched the wreckage for days, and 22 workers were injured along with those who died. Bridgeport is marking the 35th anniversary of the L’Ambiance Plaza collapse, a construction accident that claimed the lives of 28 people and injured 22 others on April 23, 1987. SSE analyzed the structural behavior of a typical west tower floor slab under ideal conditions with regards to the unusual layout of the posttensioning tendons.

NBS published a report on its investigation that is summarized in ; the following description of the status of construction at the time of the collapse is based on information given in , as well as in . Family, friends, rescue workers, city and state leaders were all on hand for the annual event. Twenty eight workers were killed when the L’Ambiance Plaza building in Bridgeport, Conn. collapsed on April 23, 1987. File photograph of the L’Ambiance Plaza collapse, in Bridgeport, Conn. File photograph of the L’Ambiance Plaze collapse, in Bridgeport, Conn.

In the weeks and months that followed the accident, a number of theories emerged as to the cause of the collapse. These theories included catastrophic failure due to a bent support column, an improper alignment of the columns, cracks in the concrete layers, improper curing of the concrete, and a malfunctioning hydraulic lift. But others suspected that carelessness, as well as the building design itself , ultimately deserved the blame. Variations in control of lifting operations, particularly the failure to engage one of the slabs at one column during one of the slab lifts in the east tower. Based on various eyewitness accounts , the most likely location of initial failure was within the levels 9, 10 and 11 slab stack near line E between lines 6 and 3.8 of the west tower. However, several eyewitnesses placed the start of the collapse high in the building at the west end of the west tower.

Also, standardized step-by-step procedures for lift-slab construction should be established to ensure the safety of the construction workers. A licensed professional engineer should be present during construction to ensure that these guidelines are followed . The NBS investigation concluded that the failure celebrities with ceiling eyes occurred at the buildings most heavily loaded column E4.8 or the adjacent column E3.8 as a result of a lifting assembly failure. The shearhead reinforces the concrete slab at each column, transfers vertical loads from the slabs to the columns, and provides a place of attachment for the lifting assembly.