Skip to main content

Traffic Loads on Bridges

Buy Article:

$28.00 plus tax (Refund Policy)

Abstract:

The results of a study are described which aimed at the derivation of a traffic load model for the design of road bridges. Attention is given to the Ultimate Limit State, the Serviceability Limit State and the Fatigue Limit State under static and dynamic conditions. A set of measurements done in 1978 in Rheden, The Netherlands, served as the basis for the vehicle model. Starting from the measurements of 16,000 vehicles, statistical models for the weight of 16 types of lorry configurations were derived. An additional set of measurements done in 1985 at Moerdijk, The Netherlands, was used to derive a statistical model for the axle loads, once the vehicle type and the total vehicle load is given. Based on various sources, a probabilistic traffic flow model was constructed, comprising traffic intensities, lorry distances and lorry speeds for three types of traffic: free, congested and full stop, each of which governs the traffic flow during some part of the day. Given both models, design values with predefined probabilities were derived for the axle, tandem, tridem and vehicle loads and for distributed loads on single and multiple lanes of various influence lengths. The axle and vehicle loads were derived by direct calculation. The distributed lane loads were derived using a simplified numerical traffic model. For short periods (1, 10 and 30 days), this simplified model was verified by Monte Carlo simulations on the full model. The values obtained in the way described above can not be used directly in design. The vehicle data is very limited and comes from one place and one time. The traffic flow model contains many simplifications and assumptions. These effects have been taken into account by an extensive trend and uncertainty analysis.

Keywords: Dynamic deflection; Fatigue Limit State; Serviceability Limit State; Traffic load models; Ultimate Limit State

Document Type: Research Article

DOI: https://doi.org/10.2749/101686693780607796

Publication date: 1993-08-01

More about this publication?
  • FREE SAMPLE JOURNAL
    Write for SEI: Author Guidelines.
    The journal is included in IABSE Membership.
    Yearly subscription: order form.

    Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.

    SEI is printed in Switzerland; ISSN 1016-8664; E-ISSN 1683-0350
    Abstracted and indexed at: Web of ScienceSM; Science Citation Index Expanded (SciSearch); Journal Citation Reports/Science Edition; Current ContentsR/Engineering, Computing and Technology; CAB Abstracts database; INSPEC, CBA and others.

  • Subscribe to this Title
  • Author Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more