[VI-988] Alternate Design from RC Waler + Steel Strut System to Semi-RC Slab System under Top-Down Construction
Keywords:Steel Strut System, Semi-RC Slab, Design Change, RC Waler, Construction Schedule Reduction
RC Waler and Steel Strut System for 4th Level was originally designed for Station Top Down Construction for the Project. However, observing the Diaphragm Wall deflection and Strut Stress status by Instrumentation and Monitoring System, alternate Semi RC slab design was proposed. As a result, congested rebar arrangement for RC waler was able to be harmonized. Furthermore, the work on site could avoid any difficulty of combined RC and Steel Work and realized the reduction of the work schedule. This report specifies the adequacy of the above mentioned alternate design for the work and the possibility of its application to other similar case.
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