Our group is doing two Case Study that happened in Malaysia and foreign country. Case in Malaysia happened in Penang Island which is the collapse of the Second Penang Bridge ramp while the case that happened in foreign country is the collapse of the Hyatt Regency Kansas City Walkways in United States of America.
Penang Second Bridge is one of the biggest project in Malaysia. The incident was happening while the project is under construction. On the 6th June 2013, 30-meter length of a section connector of the bridge at Batu Maung Interchange had collapsed at around 6.50 pm. The incident caused the dead of one civilian and injured to others four which is two civilian and two workers which is from Indonesia and Myanmar. The possible causes that lead to the incident is being investigated from several aspects. The main causes that lead to the incident are the workers were not registered with the board, the failure of the formwork support, the weak risk management, and the poor drainage system.
Development of the Hyatt Regency Kansas City was initiated in 1976 by Crown Center Redevelopment Corporation. 2. Crown Center Redevelopment Corporation hired Gillum-Colaco, Inc. of Texas as the consulting structural engineers. Gillum-Colaco worked together with Crown Center Redevelopment Corporation and project architects to develop the plans and create structural drawings and specifications. However, Gillum-Colaco did not perform the structural engineering but subcontracted this work to its subsidiary, JackD, Gillum and Associates, Ltd. General contractor for the project is Eldridge Construction Company, then hired Havens Steel Company as the subcontractor for fabrication and erection of the atrium steel. There are two possible reasons for the collapse of the Hyatt Regency Kansas City Walkways which are heavy load that cannot be supported by beam for the walkways of both fourth and second floor and negligence of person in charge who gives approval for the design of the walkways.
Lessons that can be learned from the case study of Penang Second Bridge Ramp Collapsed Under Construction is stability of footing foundation that support formwork are really important to make a structure stable. The collapse of the ramp is caused by the failure of the formwork support. Meanwhile, stability of beam is really important for the design of the walkways in the case study of The Collapse of Hyatt Regency Kasas City Walkways. Overload because the beam cannot support the walkways and then collapse. Next, civil engineer construction should have ethical considerations when deals with the designing, planning, construction and management of infrastructures and also in term of safety aspect.