Large structural cracks appeared in the Rana Plaza the day before and an evacuation order was given. The building and factory owners ignored the warning and insisted work continue hours before the building collapsed.
On Wednesday 24 April morning there was a power cut and diesel generators on the top floor were started. The building collapsed at about 08:57am, leaving only the ground floor intact.
The Bangladesh Garment Manufacturers and Exporters Association president confirmed that 3,122 workers were in the building at the time of the collapse One local resident described the scene as if "an earthquake had struck."
After that Khowas Ali, a small-time trader in Savar and one of the first on the scene, headed a rescue effort using bamboo from the rooftop of next-door RS Plaza. Later he was able to arrange basic instruments to make holes from RS Plaza into different floors of the collapsed building, pulling out those trapped inside. He, and others like him, a motley crew of strangers, worked for 21 days at a stretch, day and night, with minimal sleep or food. The fire-service, army and police, as well as other organisations on the ground, were to give them much-needed support.
And also hundreds of organisations, among them Red Crescent, BILS, Sajeda Foundation, Anjuman Mofidul Islam, Enam Medical College, Centre for the Rehabilitation of the Paralysed, along with thousands of individuals, helped the rescue effort providing money, meals, food, fuel, water, saline, oxygen, generators, torches, basic tools, medical and other support.
Hundreds of garment workers were killed and injured when an 8 story building housing five textile factories collapsed on 24 April. The deadliest garment-factory accident in history, as well as the deadliest accidental structural failure in modern human history.
Building collapsed can be reduced through some steps such AS-
a. procurements of land documents example-survey plans of the proposed lands ,certificate of occupancy , receipt of land purchases etc.
b. production of contact drawings ( architectural , structural , mechanical , electrical services drawing, bill of quantities ) through registered professionals .
Approval of all documents CORRECTLY in items (a) and (b) by the planning authority will be the BEST option to reduce BUILDING COLLAPSE in BANGLADESH.