113. SM Structural Feature on 181 Freemont
From a Space Program Hall of Fame induction to one of the tallest, mixed-use buildings in San Francisco, Taylor Devices continues to provide the most efficient, effective and innovative structural protection products on the planet.
73. TAYLOR DEVICES HERMETIC DAMPERS DESCRIPTION, APPLICATIONS, AND DESIGN
This hermetically sealed damper was developed during the 1980’s for use space platforms. NASA and the U.S. military had experienced difficulties over the years with all types of oil filled products in space. Conventional sliding surfaces that were sealed acceptably on earth proved unacceptable for spacecraft use. Even the tiniest amount of fluid seepage past conventional seals turns into a dense fog in a vacuum, contaminating optics and electronic systems. Taylor Devices’ solution was to develop a damper that uses a flexural seal – thus sealing by non-sliding methods. The seal itself was a so called metal bellows made by laser welding thin discs of stainless steel into a bellows configuration. This paper describes the design and construction of the Taylor Devices Hermetically Sealed Damper.
56. BUILDINGS: DESIGN FOR DAMPING
The end of the Cold War in 1990 heralded a restructuring period for the American military and defense industry. In the civil engineering field, high capacity fluid dampers have transitioned from defense related structures to commercial applications on buildings and bridges subjected to seismic and/or wind storm inputs. Because fluid damping technology was proven thoroughly reliable and robust through decades of Cold War usage, implementation on commercial structures has taken place very quickly. This paper provides a broad overview as well as a guide to implementation; with specific case studies for four of the more than 300 major buildings and bridges equipped with fluid dampers by Taylor Devices, Inc., a defense contractor from the Cold War years.
54. Here’s How it Works
This article from Bridge Builder magazine shows how Taylor Devices dampers reduce seismic response of bridges.
28. Commonly Asked Questions Regarding Seismic Isolation
This paper answers the questions that asked about using viscous dampers in a hospital.
26. TESTING PROCEDURES FOR HIGH OUTPUT FLUID VISCOUS DAMPERS USED IN STRUCTURES TO DISSIPATE SEISMIC ENERGY
This paper describes the dynamic testing of a 320 kip viscous damper using both sinusoidal excitation and a drop test machine.
22. SELECTED PRODUCTION HISTORY HIGH CAPACITY TAYLOR DEVICES DAMPERS AND ENERGY DISSIPATORS
Selected Production history Taylor Devices dampers and energy dissipators for structural use.
11. LONG TERM LIFE CYCLE EVALUATION OF TAYLOR DEVICES PRODUCTS
A number of Taylor Devices produced between 1956 and 1965 are kept in storage and are periodically evaluated for corrosion and deterioration. This report describes the present day condition of these dampers and shock absorbers.
8. FLUID VISCOUS DAMPERS IN APPLICATIONS OF SEISMIC ENERGY DISSIPATION AND SEISMIC ISOLATION
Experimental study of both a moment frame building and a single span bridge, both with and without viscous dampers, are described here. Additions of viscous dampers significantly reduced both drift and shear forces.
4. Earthquake Protection Systems
Taylor Devices, Inc. has been the leader in shock and vibration technology since 1955. Now, we have boldly stepped into the forefront of one of civil engineering’s greatest challenges: Seismic protection of buildings, bridges, historical structures, and even residential dwellings. Extensive research has been conducted in a joint effort with the National Center for Earthquake Engineering Research (NCEER), located at the State University of New York at Buffalo. A practical approach has been developed for dissipating energy from a structure by the addition of Taylor Devices’ unique Fluid Viscous Dampers. The most noteworthy features include a maintenance-free design proven by years of usage by the Military, “fail-safe” construction which insures safe operation for the life of the building or bridge, and significantly lower cost than conventional methods.
Taylor Devices’ Fluid Viscous Dampers can be incorporated into a newly designed structure or retrofit to existing structures to extend their ability to survive seismic events. The linear output of these devices allows ease in structural analysis using existing software codes.
This data book includes answers to the questions most frequently asked about the use of viscous damping in a structure. Application and sizing information is also provided. For more information about a custom designed seismic protection system for your specific application, please do not hesitate to contact us at our factory. Our staff of highly qualified experts is ready to help you.