Detection Identification And Reinforcement Analysis Of A Chimney In Power Plant

The chimney is indispensable for industrial and civil building structures, belongs to the civil construction, metallurgy, power, chemical industry is an important symbol of the structures.Reinforced concrete chimney accounted for the vast majority in our chimney, affected by climate conditions, effects of environmental erosion, physical and other external factors, with the service time, the safety and reliability of the structure has gradually become an issue of common concern.Therefore, it is necessary to make further research for the reinforced concrete chimney detection, safety evaluation and reinforcement.The reinforced concrete chimney in Dalian, due to the environmental protection department puts forward newer, higher requirements on the power plant flue gas emissions,the need to implement the transformation of the desulfurization chimney,before the construction of vertical cracks in the tube wall, the outer wall of outer shell with protection layer, longitudinal reinforcing steel due to corrosion caused by the volume expansion of protective coating. The present using condition may not meet the normal use and durability requirements, and may pose a threat to the safety of the structure. Hence the need for safety appraisal of the chimney, on the basis of the identification results put forward the reinforcement program, to ensure the safety of the structure in the following years. First of all, inspection and testing on the spot in the chimney. Secondly, the structure design according to the actual situation of the chimney, grading the chimney. Again, analysis of the cylinder wall lining and insulation, and insulation intact inner shedding intact, lining and insulation effect of load shedding temperature under three kinds of conditions on the cylinder wall.Finally, according to the appraisal result and the practical problems, the reinforcement scheme is presented.The research results of this paper can not only improve the reliability of the identification method of the reliability of the power plant chimney, the chimney is made reasonable evaluation. Repair and reinforcement scheme is proposed in this paper, not only the power plant chimney existing problems have been solved, but also has great reference value to the similar reinforcement of reinforced concrete chimney.