ROCK SHELTER OPENS

The Avon Gorge Gallery, on the A4 Hotwell Road, immediately beneath the Clifton Suspension Bridge, Bristol will protect traffic from being struck by rock falling from the unstable vertical face beneath the bridge abutments. The 90 M long gallery has a 900 mm deep welded plate girder roof acting compositely with a 300 mm thick reinforced concrete slab. The roof is covered with a 2 M thick layer of crushed limestone aggregates to absorb the impact of falling rock. The river side of the roof is supported on a collonade of reinforced concrete columns on piled foundations. At the other side, near the rock face, the roof is carried on reinforced concrete abutments, anchored to the rock. The road surface was raised by 400 mm during the building of the gallery, to alleviate flooding at high tides. Lack of documentary guidance on the dynamic design of the structure has led to constructional methods being developed from first principles. The roof has been designed to cope with the fall of a 1.3 tonne piece of rock. Rebound characteristics were confirmed by in situ tests recorded on slow motion film. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00107859
• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Authors:
  • Atkinson, I
• Publication Date: 1981-9-24

Media Info

• Features: Figures;
• Pagination: p. 25
• Serial:
  • CONTRACT JOURNAL
  • Volume: 303
  • Issue Number: 5319
  • Publisher: Reed Business Information, Limited
  • ISSN: 0010-7859

Subject/Index Terms

• TRT Terms: Absorption; Beams; Bridge abutments; Columns; Construction management; Crushed limestone; Foundations; Galleries; Impacts; Pile foundations; Plate girders; Protection; Reinforced concrete; Rockfalls; Roofs; Slope stability; Steel; Support piles; Valleys
• Uncontrolled Terms: Gallery; Reinforced concrete beams
• Geographic Terms: United Kingdom
• ITRD Terms: 3434: Bridge pier; 3377: Foundation; 4029: Landslide; 3399: Pile; 9149: Prevention; 4794: Reinforced concrete; 5783: Slope stability; 4542: Steel; 3374: Tunnel; 8119: United Kingdom; 4059: Valley
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Safety and Human Factors; Security and Emergencies; I54: Construction of Tunnels; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00345865
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Feb 27 1982 12:00AM