00756076

Component

https://doi.org/10.3141/1624-11

http://scholar.google.com...RTIN&publication_year=1998

Many bridges constructed in the 1960s in regions of high seismic risk have column-pier-cap connections with inadequate column bar development and no shear reinforcement in the joint region. The study described in this paper focuses on highway bridges built on Interstate 80 in the Reno, Nevada, area during the 1960s. Two 0.4-scale specimens representing the essential features of the column-pier-cap connections in these bridges were constructed and tested. One test showed that the as-built specimen had little energy dissipation capacity and failed at less than 1% drift. A second specimen was used to test a potential strengthening technique. The technique included increasing pier-cap depth, adding a concrete bolster to the joint, and placing a steel jacket around the column. After strengthening, a plastic hinge formed in the column, the joint damage was minimized, and the energy dissipation capacity increased by a factor of 5.

This paper appears in Transportation Research Record No. 1624, Structural Analysis and Design: Bridges, Culverts, and Pipes.

English

p. 93-100

1998

Transportation Research Record

0309064694

Figures (9) ; Photos (1) ; References (8) ; Tables (1)

Bridge piers; Columns; Dissipation; Earthquake resistant design; Highway bridges; Jacketing (Strengthening); Joints; Material reinforcement; Networks; Retrofitting; Scale models; Steel; Strength of materials; Structural strengthening

Joints; Model tests; Pier caps

Reno (Nevada)

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

TRIS, TRB

Nov 3 1998 12:00AM

• ACCOUNTING FOR EFFECTS OF CORROSION SECTION LOSS IN STEEL BRIDGES
• BEHAVIOR OF HIGH-DENSITY POLYETHYLENE PIPE WITH SHALLOW COVER
• BEHAVIOR OF TENSION SPLICES FOR REINFORCING BARS EMBEDDED IN HIGH-STRENGTH CONCRETE
• BOUNDARY EFFECTS ON RESPONSE OF POLYETHYLENE PIPE UNDER SIMULATED LIVE LOAD
• ECONOMIC ANALYSIS OF BRIDGE REHABILITATION OPTIONS CONSIDERING LIFE-CYCLE COSTS
• EFFECT OF CORROSION ON CRACK DEVELOPMENT AND FATIGUE LIFE
• FATIGUE IMPACTS ON BRIDGE COST ALLOCATION
• FULL-SCALE TESTS OF A RAILWAY BRIDGE
• IMPACT OF 44 000-KG (97,000-LB) SIX-AXLE SEMITRAILER TRUCKS ON BRIDGES ON RURAL AND URBAN U.S. INTERSTATE SYSTEM
• IN-SERVICE PERFORMANCE OF INTEGRAL BRIDGES AND JOINTLESS DECKS
• INFLUENCE OF BRIDGE APPROACH, SURFACE CONDITION, AND VELOCITY ON IMPACT FACTORS FOR FATIGUE-PRONE DETAILS
• JAPANESE "MANUAL FOR THE AESTHETIC DESIGN OF BRIDGES"
• LABORATORY DETERMINATION OF SOIL STIFFNESS DATA FOR BURIED PLASTIC PIPES
• LABORATORY FACILITY FOR TESTING ROAD IRONWORK INSTALLATIONS
• LABORATORY TESTING OF LOW-VOLUME ROAD BRIDGE ALTERNATIVE
• LONG-SPAN REINFORCED STEEL BOX CULVERTS
• LONGITUDINAL RESTRAINT RESPONSE OF EXISTING BRIDGE BEARINGS
• NONLINEAR FINITE ELEMENT ANALYSIS FOR THERMOPLASTIC PIPES
• OPTIMIZATION OF STRUCTURAL DESIGN FOR HIGH-PERFORMANCE CONCRETE BRIDGES
• PROFILES OF DESIGN DIMENSIONS AND FUNDAMENTAL NATURAL FREQUENCIES FOR STEEL INTERSTATE HIGHWAY BRIDGES IN SOUTHEASTERN MISSOURI
• PROTOTYPE TESTING OF INTELLIGENT STIFFENER FOR BRIDGES AT I-35 WALNUT CREEK BRIDGE
• SEISMIC RETROFIT OF 1958 CARQUINEZ BRIDGE
• SEISMIC RETROFIT OF SAN FRANCISCO-OAKLAND BAY BRIDGE WEST CROSSING
• SEISMIC RETROFIT OF VINCENT THOMAS SUSPENSION BRIDGE
• STRUCTURAL PERFORMANCE OF BURIED PROFILE-WALL HIGH-DENSITY POLYETHYLENE PIPE AND INFLUENCE OF PIPE WALL GEOMETRY
• TESTING OF HIGH-PERFORMANCE CONCRETE SINGLE-SPAN BOX GIRDER
• THE GOLDEN PROPORTION AND AESTHETIC DESIGN OF LONG-SPAN BRIDGES