Finally , with the research results , the author analyzes the two tv tower drums : the normal concrete tower and the presrtressed concrete tower . at the same time , the calculation reliability of prestressed concrete tower drum and dropping - coefficient of stiffness established in this paper has been proved 最后,利用本論文的研究成果,對(duì)普通混凝土電視塔和預(yù)應(yīng)力電視塔進(jìn)行實(shí)例分析,驗(yàn)證了本文建立的塔筒計(jì)算公式和剛度降低系數(shù)計(jì)算公式的可靠性。