UNCONVENTIONAL DESIGN FEATURES ON THE M11

This article is mainly concerned with the unconventional design features of the bridges used in South Harlow to Bishops Stortford section of the M11. The author discusses the design of two small skew bridges that have been built to carry the motorway over single carriageway side roads. A continuous three-span deck on column piers has been used to improve both appearance and natural lighting: further improvement in lighting is given by the inclusion of a light well grillage in the central reservation. Innovations in foot bridges include the adaption of short end spans over v-shaped verge piers and the use of the outer leg of the pier as a stair approach. Details are given of accommodation bridges which were designed to combine visual interest with minimum cost. These are constructed of hollow in-situ reinforced concrete with overhanging end sections. A description is also given of the over bridges which are conventional continuous l-span slab structures of reinforced concrete cast in place. /TRRL/

• Corporate Authors:

  Norwood Publications Limited

  Elm House, Elm Street
  London WC1X OBP,   England 
• Authors:
  • PRITCHARD, B P
• Publication Date: 1975-4

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 63-67
• Serial:
  • Consulting Engineer
  • Volume: 39
  • Issue Number: 4
  • Publisher: Norwood Publications Limited

Subject/Index Terms

• TRT Terms: Bridge design; Bridge members; Bridge piers; Bridges; Cast in place concrete; Costs; Design; Footbridges; Freeways; Granulated slag; Landscaping; Length; Lighting; Piers; Reinforced concrete; Skew bridges; Structural design; Structural piers
• Uncontrolled Terms: Bridge spans
• Geographic Terms: United Kingdom
• ITRD Terms: 3455: Bridge; 3434: Bridge pier; 4781: Cast in situ concrete; 224: Cost; 9011: Design (overall design); 3475: Footbridge; 2887: Landscaping; 2752: Motorway; 4794: Reinforced concrete; 3448: Skew bridge; 3452: Span; 8119: United Kingdom
• Subject Areas: Bridges and other structures; Design; Finance; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00127925
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Dec 29 1975 12:00AM