ALIZE-LCPC: mechanical design module
The software ALIZE-LCPC implements the rational method of mechanical design of pavement structures, developed by LCPC and SETRA, French authorities for roads and highways.
A user-friendly and intuitive interface

Input of the layers of the structure
 ALIZE-LCPC: mechanical design module


Specification of the reference load (13t axel or others)
Material library window (possibility of user-defined materials)




User help (1994 guide and 1998 catalogue)
 

Computation of mechanical response under loading (Burmister model)
Results:
  • stresses and strains at the upper and lower fiber of each layer
  • saving a summary report, tables and 2D or 3D graphs
An efficient design tool
ALIZE-LCPC includes a computation tool for admissible values (stresses and strains) according to the recommendation of the LCPC-SETRA method.

ALIZE-LCPC includes a computation tool for admissible values (stresses and strains) according to the recommendation of the LCPC-SETRA method Mechanical design steps
  1. Definition of the road structure, initial solution.
  2. Computation of admissible values.
  3. Computation of the structural response under loading.
  4. Checking results against criterion for each layer and acceptance or rejection of the solution.
  5. When necessary, variation study (automatically generated) on thicknesses:
    • Increase to reach an admissible structure,
    • Or decrease for optimization …

Detailed functionalities
chausséesNew functionalities

interface simple A simple interface to describe the studied structure (fig. 1):
  • number and thickness of the layers,
  • interfaces.

window for capture of the structure
fig. 1: window for capture of the structure

material library
fig. 3: material library


chaussées Results of mechanical calculation

interface simple User defines:
  • points of calculation,
  • studied profiles…

interface simple The results are presented by layer, in following forms:
  • tables (deformations, forced, …),
  • longitudinal profiles,
  • surfaces of isovaleurs 2d or 3d…

profiles of results of mechanical calculation (2d and 3d)

fig. 5 and 6: profiles of results of mechanical calculation (2d and 3d)

   interface simple Loadings of reference:
  • single axle,
  • double axles, …

interface simple Personalized loadings (fig. 2):
  • several prints,
  • several pressures,
  • several points of calculation…

description of a personalized loading
fig. 2: description of a personalized loading


interface simple Preset libraries:
  • standard materials (fig. 3),
  • interfaces.

bibliothèques personnalisées Personalized libraries.











table of results of mechanical calculation
fig. 4: table of results
of mechanical calculation, example

profiles of results of mechanical calculation (2d and 3d)