Analysis and Design of R C Chimney
International Journal Of Mechanical Engineering And Information Technology
It is essential to ensure that a structure like an RC chimney shall exhibit uninterrupted performance in respect of the intended functions successfully over its expected life span. It is important to note that such expectation is made under inherent uncertainties and randomness of the basic design variables in different design situations corresponding to different limit states. An attempt is made to assess the safety of an RC chimney under different wind and earthquake conditions. The thickness
... ions. The thickness may vary from a minimum of 150mm at the top to the 450mm at the bottom depending upon the height of the chimney. Sufficient amount of vertical steel is provided to resist the bending moment due to wind. In addition to this, horizontal steel (loop reinforcement) is provided to resist the horizontal shear and also reduce the effect of temperature gradient on concrete. The tall reinforced chimneys are wind sensitive structures and they exhibit both along wind and across wind response. So the design in this paper is governed by combined response is discussed. The design of tall RC Chimneys mainly depends on the combined values of along and across wind loads. For generating chimney model in STAAD, two types of models were considered, one with 8 node solid elements and other one with line element. Both the models were analysed and deflection was calculated.