Abstract
This paper presents a case study on the rehabilitation of a fire-damaged structure and describes the results of a site investigation and tests, leading to a plan for the rehabilitation of the structure. The fire took place in the main control room of a thermal power plant and lasted about three hours until it was finally extinguished. To set up a rehabilitation plan for the damaged structure, a visual inspection of the damaged condition was first carried out, which was followed by analysis and on-site material tests indicating the degree of neutralization progress in the remaining structure. Specimens of damaged concrete and reinforcing bars were sampled and tested for their residual strengths. As a conclusion, two methods of rehabilitation were suggested considering the current condition of the structure and the sequence of construction.
Highlights
Fire is one of the most severe hazards that building structures may experience during their lifetime [1]
This paper presents a case study to provide a reference for the rehabilitation of fire‐damaged reinforced concrete (RC) structures
This paper presents a case study on establishing a rehabilitation plan for a fire‐damaged reinforced concrete structure
Summary
Fire is one of the most severe hazards that building structures may experience during their lifetime [1]. The topics main structural components damaged by the fire such as slabs, girders, beams, columns and walls discussed in this paper include the results of the site investigation and tests, and a tentative plan for were visually examined. Thewere condition of all the Thesite visual inspectionwas revealed most of after the batteries in the room burned down, main structural components damaged by the fire such as slabs, girders, beams, columns and walls especially the Batteries #1, #4, #5 and #6. In spite of the spalling of the concrete cover and the exposure of reinforcing bars, the girders and Inwere spitedeemed of the spalling of thetheir concrete cover and the capacity, exposurejudging of reinforcing the girders beams to still retain designed structural from thebars, fact that neither and beams were tonor stilldiagonal retain their designed capacity, judging the fact that flexural cracks at deemed mid-span cracks towardstructural the span-ends were found,from and deflection at neither flexural mid‐span nor diagonal the span‐ends were found, and the center of the cracks elementatwas not detected with thecracks naked toward eye.
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