Bridge Design Software with 4D Construction Sequencing and Time-Dependency

ADAPT-ABI is a general finite element program which performs 4D time-dependent analysis of concrete bridges and frames during and after the construction phase. ABI can investigate the effect of newly placed concrete, creep, shrinkage, and relaxation in prestressing over time, aging of concrete, and variation in temperature. Its excellent graphical interface can display moments, shears, stresses, and deformations for various stages of construction. The software can handle nonprestressed concrete, precast, cast-in-place, pre-tensioned or post-tensioned frames. The software is intended for incrementally constructed bridges and frames; retrofit of concrete frames where new concrete is added, new members are added or existing members are modified; and demolition (reverse construction) of frames.

New Release - ADAPT-ABI 2012 (build 0)
January, 2012: ADAPT-ABI 2012 build 0 is a new and improved version of our specialized software for the design and 4D analysis of prestressed concrete bridges built either segmentally or conventionally. This release incorporates major improvements to the 3D modeling of structures for a more realistic representation of the built structure and also delivers dramatic performance improvements.

Complete analysis of the construction phase and in-service performance, including safety checks for:

  • Precast-prestressed girder bridges with or without field splicing and topping slab
  • Balanced cantilever bridges (Cast-in-place or Precast)
  • Incrementally launched bridges
  • Span-by-span bridges
  • Cable-stayed bridges
  • Bridge bents
  • Slab bridges
  • Box girder bridges
  • Bridge rehabilitation with external post-tensioning

12 reasons why ADAPT ABI is a good investment over other Bridge solutions

1. Good for quick, fast preliminary design. Object Orientated Modeling allows user to model the bridge quickly as an assembly of Girder, Pier, Tendon etc. without specifying nodal coordinate, connectivity, cross sections.

2. Affordable solution which fulfill almost all requirements of a Concrete Bridge of Segmental Construction

3. Accurate time dependent analysis, creep, shrinkage, PT losses, etc. ADAPT ABI accurately calculates effect of change of Tendon Forces over the time.

4. Easy to learn as opposed to mastering other Bridge solutions where you will be struggling (especially younger engineers) to come to grips with the software.

5. Can import AutoCAD drawings and using conversion tools create cross sections, girders, piers, tendons, rebar, stays etc. quickly and assemble Bridge structure fairly quickly. One can even open a DWG file (any version) without having AutoCAD in his system using ADAPT-ABI, view or edit the drawing and save it back as DWG format compatible with any version of AutoCAD.

6. This program can easily handle all Bridge projects where the horizontal alignment is straight or having moderate curvature. Extended 2D (2.5D) solution gives a much faster processing speed compared to other solutions.

7. It can handle moderate curvature with associated torsion calculations. By moderate curvature we mean horizontal offset between two successive piers in plan is less than 1/10 th of distance between the piers.

8. Physical modeling of tendons and force is determined as per location as opposed to equivalent force taken by other programs. Almost all programs replace the tendon by an equivalent axial force along the cg line of the member to compute the results. However ADAPT ABI retains the position of tendon and obtains its force along Tendon line.

9. Automatic rigid link formation between deck and pier when it generates Input File

10. This program can model travelers and handle construction sequences effectively.

11. User can model parts of deck as intended for casting and analyze the assembly as a composite section with differential creep and shrinkage pattern. It also allows user to model non linear variation of temperature gradient.

12. Using reference line allows users to model and modify bridge geometry with ease and also adjust travel path, loadings, tendons etc. accordingly.

The all new ADAPT-ABI features a 3D modeling environment which allows the user to model any bridge structure graphically and to define and manage constructions stages more efficiently. The bridge structures may include tendons, loads and travel paths.

ADAPT-Moving Load Module

The moving load module is developed primarily for bridge construction. Using the software's library of the most common truck or train loads, or a user-defined library, the program automatically moves the loading along a user-defined path and generates an envelope of sectional actions for combination with other loading. The moving load module of ABI is general and comprehensive. It is designed to cover all foreseeable conditions in bridge design.

ADAPT- Elongation Module (includes friction and stress loss)
At the completion of an ADAPT-ABI computer run, and without any additional input data, this module calculates the elongation of each of the tendons at stressing and the associated stress losses. The stress losses include the effects of friction and the time-dependent parameters of creep, shrinkage, and relaxation in prestressing.

ADAPT-ABI supports the following codes:

  • ACI 1978, ACI 1972, Indian 1343-1980, British BS8110, Hong Kong
  • AASHTO 1994 / 2007 (new), CEB/FIP 1978, DEB1 1978, EuroCode 2004, User defined

The program supports the following units:

  • SI, MKS, American Customary



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