00485574

Component

http://onlinepubs.trb.org...trr/1988/1180/1180-007.pdf

https://scholar.google.co...tani&publication_year=1988

This paper describes the research procedure followed to eliminate the end blocks from simply supported Washington Series 14 and 10 girders. Girders in the former series have 5-in. webs, are over 6 ft deep, and can be up to 140 ft long. The procedure consisted of an analytical study followed by full-scale testing, the monitoring of a girder in a bridge, and implementation of the end block removal. A finite-element analysis was first made of girders with and without end blocks. This was followed by a full test of a 48-ft long, Series 14 girder manufactured without end blocks. A Series 10 girder was manufactured without end blocks and monitored in a bridge under actual service. The findings of this research were implemented by revising the girder standards. This resulted in about a 7 percent saving in the cost of simple span girders. A study is under way to see whether the end blocks can be removed from continuous girders.

This paper appears in Transportation Research Record No. 1180, Bridge Design and Testing. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01416537

p. 40-48

1988

Transportation Research Record

030904720X

Figures (12) ; References (10) ; Tables (4)

Blocks; Cost effectiveness; Finite element method; Girders; Monitoring; Precast concrete; Standards

Removal; Revisions

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

TRIS, TRB, ATRI

Jul 31 1989 12:00AM

• ANALYTICAL INVESTIGATION FOR SHELL STRUCTURES UTILIZED AS EMERGENCY BYPASS BRIDGES
• BEAM MODELS FOR NONLINEAR AND TIME-DEPENDENT ANALYSIS OF CURVED PRESTRESSED BOX GIRDER BRIDGES
• BEHAVIOR OF OPEN STEEL GRID DECKS UNDER STATIC AND FATIGUE LOADS
• BRIDGE PERFORMANCE PREDICTION MODEL USING THE MARKOV CHAIN
• BRIDGE REPLACEMENT COST ANALYSIS
• BRIDGE STRENGTHENING WITH EPOXY-BONDED STEEL PLATES
• DESIGN AND CONSTRUCTION OF TRANSVERSELY POSTTENSIONED CONCRETE BULB TEE BEAM BRIDGE
• METHODS OF STRENGTHENING EXISTING HIGHWAY BRIDGES
• SEISMIC DESIGN OF HIGH-STRENGTH-CONCRETE BRIDGE PIERS AND COLUMNS
• STRUCTURAL ANALYSIS AND RESPONSE OF CURVED PRESTRESSED CONCRETE BOX GIRDER BRIDGES
• TIE GIRDER FRACTURE IN SIOUXLAND VETERANS MEMORIAL BRIDGE
• TRANSVERSE LOAD DISTRIBUTION IN A 536-FT DECK ARCH BRIDGE