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International Concrete Abstracts Portal

Showing 1-5 of 41 Abstracts search results

Document: 

SP93

Date: 

September 1, 1986

Author(s):

Editor: D.R. Morgan

Publication:

Symposium Papers

Volume:

93

Abstract:

SP-93 This ACI publication is a collection of over 40 papers from 10 different countries examining concrete in transportation-related applications. The combined expertise of representatives from industry, universities and government agencies is brought together, providing information and ideas on the design, use and performance of concrete in six different transportation-related areas. These six strategic areas include: concrete pavements, railroad systems, transit systems, concrete repair, bridges and marine structures. Concrete in Transportation will give the reader valuable information and substantial insight into the problems and solutions inherent in concrete and the infrastructure.

DOI:

10.14359/14050


Document: 

SP93-31

Date: 

September 1, 1986

Author(s):

P. Taylor, J. E. Torrejon, and K. Manniche

Publication:

Symposium Papers

Volume:

93

Abstract:

Annacis Bridge crosses the South Arm of the Fraser River near Vancouver, British Columbia. When completed in 1986 it will be the longest span cable-stayed bridge in the World. This paper presents an overview of the design and construction of the bridge focusing on the concrete portions of this major structure.

DOI:

10.14359/6324


Document: 

SP93-30

Date: 

September 1, 1986

Author(s):

H. Ainso and T. M. Tronzo

Publication:

Symposium Papers

Volume:

93

Abstract:

Concrete parking decks are subject to several unique problems which can initiate or aggravate deterioration. These include negative-moment cracking, cold joint cracking, cracking due to embedded conduit runs, and other water related damage. This paper will deal with these problems encountered during the rehabilitation of the parking decks in a 3-story, 28-year-old garage. This structure was not maintained for its entire life, except for the installation of a waterproofing membrane on the top deck about 8 years ago. The topics covered are: 1) inspection and testing what to look for and specific test procedures; 2) causes and recommendations for the repair of some of the problems encountered.

DOI:

10.14359/6323


Document: 

SP93-29

Date: 

September 1, 1986

Author(s):

Y. Ozaka and M. Suzuki

Publication:

Symposium Papers

Volume:

93

Abstract:

Reinforced Concrete viaducts of the Tohoku Shinkansen suffered considerable damage especially in mid-height beams due to the Miyagi-ken-oki Earthquake (1978), and there were quite a number that would not have been able to withstand normal use without remedy. In this study the strength-deformation characteristics of 1/2- or l/3-scale model specimens of rigid-frame viaduct mid-height beams are obtained experimentally, and the bending shear characteristics of mid-height beams are examined. Further, various repair methods are applied to specimens loaded to different levels with crack width or displacement as the yardstick, and the effects are investigated. As a result, it is confirmed that member yielding load, resisting capacity, deformability, etc., are not less than those of the original member if repairs are made properly by injecting epoxy resin in cracked parts.

DOI:

10.14359/6322


Document: 

SP93-28

Date: 

September 1, 1986

Author(s):

N. P. Bada

Publication:

Symposium Papers

Volume:

93

Abstract:

Several of the bridge non air-entrained concrete bearing seats on the International Control Dam have concrete deterioration from the application of de-icing salts. A 410 tonne beam and deck slab assembly was raised by twelve hydraulic lift climbing jacks assembled to a single span Bailey Bridge Structure. The concrete repair consisted of removing the deteriorated concrete, application of an epoxy bonder, wood forming, and placing of good quality concrete. The 410 tonne beam and deck slab was lowered onto new elastomeric bearing pads to its original location. The paper details the construction procedures and methods of repair to concrete in Spans 2 and 4.

DOI:

10.14359/6321


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