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Showing 1-5 of 65 Abstracts search results

Document: 

SP164V1

Date: 

November 1, 1996

Author(s):

Editor: Barrie Atkinson

Publication:

Symposium Papers

Volume:

164

Abstract:

SP-164(V1) The Fourth World Congress on Joint Sealants and Bearing Systems in Concrete Structures will enhance the general understanding of these systems and introduce entirely new concepts developed to cater to the latest seismic code requirements. This conference was held in Sacramento, California on September 29 through October 3, 1996.

DOI:

10.14359/14204


Document: 

SP164V2

Date: 

November 1, 1996

Author(s):

Editor: Barrie Atkinson

Publication:

Symposium Papers

Volume:

164

Abstract:

SP-164 (V2) Although bearing and joint systems comprise only a small percentage of the construction cost of highways, buildings, and bridges (1 percent, typically), their importance to the functioning of those structures is vastly greater. For without adequate engineering effort in design of these vital elements to account for the many, sometimes conflicting, requirements of loading and/or movement, the integrity of the entire structure may be compromised. Our increased understanding of seismic activity has made us more aware of the wider area of this activity as the greater demand placed on support and joint systems. This Fourth (quinquennial) World Congress on Joint Sealing and Bearing Systems in Concrete Structures will enhance the general understanding of these systems and introduce entirely new concepts developed to cater to the latest seismic code requirements. As with the first two Congresses, this is V.2 of a two-volume set. V.1 contains 22 papers, plus the abstracts ofpapers presented at the Third Congress.

DOI:

10.14359/14214


Document: 

SP164-15

Date: 

November 1, 1996

Author(s):

C. Stewart Gloyd

Publication:

Symposium Papers

Volume:

164

Abstract:

For the Orange County Toll Roads in California, seismic design criteria for bridges has been used which includes a requirement that expansion joints be designed for seismic movement. This departure from traditional practice is part of a design objective

DOI:

10.14359/1448


Document: 

SP164-14

Date: 

November 1, 1996

Author(s):

MichaelI C. Constantinou and Panos Tsopelas

Publication:

Symposium Papers

Volume:

164

Abstract:

In 1991, the University at Buffalo and Taisei Corporation began a collaborative research program on the experimental study of advanced sliding seismic isolation systems for bridges. The project had the objectives of producing and experimentally verifying a class of sliding isolation systems by modifying and/or adapting existing technology. Particular emphasis was given to the adaptation and use of aerospace and military hardware. Furthermore, the project included the study of established sliding isolation systems, such as the friction pendulum system (FPS) which has been used in a number of buildings and other, but not bridge, applications and the lubricated sliding bearing/yielding steel damper system used in a large number of bridges in Italy. This paper presents a description of the experimental program and representative results.

DOI:

10.14359/1447


Document: 

SP164-10

Date: 

November 1, 1996

Author(s):

Douglas K. Nims, Kolluru Subramaniam, Azadeh Parvin, and A. Emin Aktan

Publication:

Symposium Papers

Volume:

164

Abstract:

As part of an overall study of bridge behavior, instrumented elastomeric bearings are being installed on a fully instrumented test bridge in Cincinnati, Ohio. This paper presents a summary of the completed analysis and testing and the planned laboratory and field testing of the elastomeric bearings. The role of the bearings in the behavior of the overall bridge system is explicitly considered. The primary goal is to measure the deformations of the bearings over time. The secondary goal is to determine the practicality of using instrumented bearings to assess the condition and response of the overall bridge system. Analyses have indicated that the short term movements of the bearing, due to truck loading, are large enough to practically measure. Long term movements, such as those due to temperature, are also being measured. The analyses also show that changes in the bridge deck condition can result in measurable changes in bearing deformation. Laboratory studies include shear and compression studies of prototype and one-half scale models of the bearings and instrumentation. In the field, the bearings will be instrumented to monitor long and short term deformations. Limitations to the practicality of using instrumented elastomeric bearings are discussed.

DOI:

10.14359/1444


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