I heard that the 10 ton antenna is only 1% of the total weight of the tower. Why should that present a problem?
Numerous seismic experts and structural engineers have repeatedly explained that the placement of any weight on this structure at or near the top of the tower will be subjected to tremendous vibration during a major earthquake. This could then destabilize or even dislodge the antenna and possibly cause serious damage to the tower itself. These experts have repeatedly advised the City of San Francisco that prior to placing the antenna on the structure, a full dynamic analysis, independently peer reviewed, should be completed prior to hoisting the antenna so that these concerns can be addressed. • I heard that Sutro Tower meets the minimum building standards of the 1995 Building Code. Isn’t that good enough? No. After the earthquake disasters of Kobe, Japan, and Northridge, California, seismic experts repeatedly warned that meeting minimal building code standards was not enough as numerous code-compliant structures failed or collapsed. Moreover, Sutro Tower is an irregularly shaped struc
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- I heard that the 10 ton antenna is only 1% of the total weight of the tower. Why should that present a problem?
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