00756093

Component

https://doi.org/10.3141/1624-28

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

The term "road ironwork" is used to refer to covers that are placed over manholes, drainage gullies, water valves, and the like. Such ironwork can be found in virtually all highways, especially in urban areas. Highway engineers have to deal with a high incidence of premature failure in these installations, the total costs of which are estimated to be 207 million pounds sterling (U.S., $338 million, 1998) per year in the United Kingdom alone. These failures are generally characterized by gradual deterioration of the surrounding asphalt surfacing, associated with failure of the bedding material that supports the ironwork frame. The reasons for this high incidence of failure were investigated in a research project involving the construction of a full-scale laboratory test facility to simulate field conditions. This paper contains a description of the development of this apparatus. The results recorded from the apparatus were later used to identify the failure mechanisms that develop within road ironwork installations.

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

English

p. 237-245

1998

Transportation Research Record

0309064694

Figures (9) ; Photos (4) ; References (5) ; Tables (1)

Deterioration; Drainage; Failure; Grates; Manholes; Subgrade materials; Test facilities; Testing equipment

Laboratory equipment

Bridges and other structures; Highways; Hydraulics and Hydrology; I20: Design and Planning of Transport Infrastructure

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 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
• SEISMIC STRENGTHENING OF COLUMN-PIER-CAP CONNECTIONS
• 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