NEHRP Clearinghouse
- Title
- Seismic Response of Light Attachments to Buildings.
- File
- PB80185028.pdf
- Author(s)
- Villaverde, R.; Newmark, N. M.
- Source
- National Science Foundation, Washington, DC. Engineering and Applied Science., February 1980, 442 p.
- Identifying Number(s)
- ['UILU-ENG-80-7006', 'STRUCTURAL RESEARCH SER-469']
- Abstract
- An approximate simple method for predicting the response of secondary systems attached to buildings subjected to earthquakes is presented. Secondary systems comprise a variety of attachments to the floors and walls of large and complex buildings which, because of their different characteristics and functions, are not considered part of the structures which support them. Current methods to predict the response of secondary systems are either inaccurate or impractical. The method developed in this project overcomes these weaknesses. It may be applied for the analysis of multi-degree-of-freedom secondary systems connected to arbitrary points of a multi-degree-of-freedom primary structure. The method is based on the premise that interaction between a primary and secondary system can be accounted for by analyzing the interconnected system constructed by such primary and secondary systems. The response spectrum method is used to determine the maximum response of the assembled system, and analytical expressions are derived for each step. These expressions are simplified and integrated into a single relationship. Comparative studies indicate that this approximate procedure provides a convenient alternative method for the rational seismic design of secondary systems.
- Keywords
- Earthquake resistant structures; Secondary systems; Damping; Mathematical models; Dynamic response; Buildings; Earthquake engineering; Resonant frequency; Subassemblies; Earthquakes; Dynamic structural analysis