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310m高的南京预应力砼电视塔是由广播,电影、民视部设计,四川省建筑施工总公司中国华西事业公司承缝、由笔者指导的84级博士生(陆勤博士)在其学位讨文中运用有限元法进行了静、动力分析。该电视塔是由三只略倾斜的、按120°角分布的,四室箱形截面的柱肢(征太空舱下)和7逍圈梁及大小二只太空舱(塔楼)组成,构成空产框架,造型新颖,外观轻巧,这也许是目前世界上第一座空间框架式电视塔。为了较准确地考虑分布配筋的板式构件在其平面内受弯时的“受拉加劲”(即考虑裂缝问受拉砼对刚度影响——减小裂缝间钢筋应变),我们进行了8根构件试验,求出裂缝
The 310m-high Nanjing Prestressed Tv Tower was designed by the Ministry of Broadcasting, Film, and the Ministry of Civil Affairs. The Sichuan West China Construction Company, a construction company in China, was engaged in the cracks. The 84th Ph.D. student (Dr. Lu Qin), who was instructed by the author, discussed in his degree. In this paper, static and dynamic analysis are performed using the finite element method. The TV tower is composed of three slightly inclined, 120° angles, four-section box-section cylindrical limbs (under the capsule), 7-inch ring beams, and two size capsules (towers). The production of the frame, novel design, lightweight appearance, this may be the world’s first space frame television tower. In order to more accurately consider the “strength reinforcement” when the plate member with distributed reinforcement is bent in its plane (that is, considering the influence of the crack on the stiffness of the tensile reinforcement—reducing the strain of the reinforcement between the cracks), we performed Test 8 pieces and find cracks