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ALLPLAN BRIDGE - The professional BIM solution for bridge construction

 

Allplan Bridge is the professional BIM solution for bridge construction. Engineers work with a single solution from parametric model creation with a high level of detail including prestressing to integration of the construction process and structural analysis of the bridge model.


ALLPLAN BRIDGE 2021

New generation of bridge design software

 

With Allplan Bridge, a completely new platform has been created that is designed for the simplest operation and efficient workflows. By using a common bridge model instead of two separate ones for structural analysis and detailing, interdisciplinary collaboration is improved. The parametric model and the extensive automation of work steps dramatically reduces the time required for extremely time-consuming and error-prone design changes. Allplan Bridge is a new generation BIM solution that will change the way bridge projects are designed and executed.


Advantages of the Allplan Bridge Solution



Model creation without compromise

 

Allplan Bridge has been developed by recognized bridge experts. The 3D parametric model description considers the road layout, bridge alignment and required cross-sections, making model configuration quick and efficient. Complex geometries including double-curved alignment and variable cross-sections can be created easily. The user only needs to define typical cross-sections and Allplan Bridge will accurately calculate all cross-section variants in accordance with the defined table(s) or/and formula(s).


Structural Analysis

 

A global static analysis based on the Bernoulli beam theory is performed for all automatically and manually generated calculation actions defined previously in the construction sequence definition. The analysis is enhanced to accurately consider the cross-section variation. Furthermore, the nonlinear calculation of time dependent effects is performed, considering design code formulas.


Code Based Design

 

Design of necessary reinforcement area is based on both ULS and SLS requirements. Governing combinations of internal forces including 2nd order effects are checked against flexural, torsional and shear resistance and the requirements for stress limitations and crack width. The greater of calculated or any manually specified reinforcement amount is used for code assessments of the cross-sections.


Parametric Modelling

 

The multidiscipline model in Allplan Bridge is completely parametric. Changes can be made at any time. The dependent objects are automatically adjusted. Allplan Bridge is suitable for all phases of work – from the concept to construction planning and detailed design.


Prestressing made simple

 

Allplan Bridge makes it easy to model a wide range of types of pre-stressing: with immediate or later bond, internal and external, longitudinal, transverse and vertical, as well as with non-standard geometry. Based on user-defined 3D points, the program automatically generates the geometry of a tendon along the bridge structure.


Planning stressing sequences in Allplan Bridge

 

A stressing sequence can be defined for each tendon specified in the model. Stressing, wedge slip, and releasing are available actions. These actions are carried out at the begin of the tendon, at the end, or at both sides simultaneously. To optimize the management of tendon stressing, the sequences of stressing actions are stored as named “stress groups.


Referencing standard profiles

 

Standardized and repeatedly arranged cross-section parts such as longitudinal stiffeners in steel and composite sections can be easily placed.


Integration of the fourth dimension

 

The time as fourth dimension is considered when specifying the construction process. Amongst other things it is possible to define and compare different schedules for the same bridge structure.


Technical preview - Analysis: Calculation of cross section values

 

The calculation of cross-section values is an essential step in the generation of an analysis model. The calculation supports all types of sections with an arbitrary geometry.


Save time with parametric object placement

 

Objects from the Allplan Engineering library can be referenced in Allplan Bridge 2019 to add further details such as lamp posts or anchor devices of tendons to the bridge model.


Convenient operation

 

Unique parametric control enables quick and efficient management of the inevitable changes that occur during the design process saving both time and money. Working with Allplan Bridge is very convenient and specifically tailored to the requirements of bridge engineering.


Changes made in no time at all

 

Allplan Bridge helps you to manage the inevitable changes that occur during the design process. The parametric model description is an ideal base for adapting design changes. The modifications are incorporated only at their origin and all other linked members are automatically updated.


Smooth data exchange

 

Integrating road data used for road/bridge alignment is easily achieved via Allplan’s open BIM platform Bimplus. The bridge engineer must only take over the road data and can immediately start with the bridge design. Once the design is completed, the parametric model can be transferred in Allplan Engineering and to analysis software.


Intelligent Database 

 

Allplan Bridge benefits from a built-in database that is continuously logging modifications as the project progresses. This ensures that the input is never lost.


From model to time planning

 

The parametric bridge model generated in Allplan Bridge can be subdivided into individual construction elements. These can be transferred to Allplan Bimplus and linked with time-specific attributes.

Earthquake Load

Allplan Bridge uses the multi-mode Response Spectrum Method for evaluating the effects of seismic loading. The solution consists of 2 separate tasks in the calculation procedure, firstly the determination of the relevant natural modes of the structural system and secondly the evaluation of the response spectrum prescribed in the design code.

Calculation of Eigen Modes

The natural modes of the structure are calculated on the undamped system by determining the roots of the homogeneous equation system [K]*u - Ω2*[M]*u = 0. A subspace iteration scheme is used to find the eigenvalues of this equation system and thus the natural frequencies Ω and relevant displacement directions for computing the mode shapes. Further also the mass matrix is required, representing the vibrating masses of the structure, as governing parameter of the Eigen value calculation. In the program, the self-weights and superimposed dead loads as defined for the static load-case calculation and any further user defined mases are considered for calculating a consistent mass matrix.
 

Response Spectrum Analysis

In case of an earthquake, the actual extent of excitation of the different natural modes is dependent on the direction of the seismic waves (ground accelerations), the corresponding mass participation and on the damping behavior of the structure. The analytic solutions for typical structures and unit impacts are provided in the design codes as relevant response spectra, specifying the relevant proportionality factors for the individual eigenmodes dependent on the natural frequency. The calculated amplitudes related to the individual natural modes are superimposed using different methods described in literature. The program offers the ABS-method, the SRSS method, and the Complete Quadratic Combination (CQC). Three separate calculations are provided to consider different possible earthquake directions, transverse, longitudinal and vertical directions. These different cases are combined to get finally the envelope of extreme values.


 

Combinations

The table definition and visualization of the combination scheme allows for highest usability and perfect overview. The table form gives the user an overview not only of the defined load factors but also of different types of combinations. The combination type becomes an important attribute when the code-based design is performed. It allows specific design procedures for automatically using the corresponding combinations.

Creep, Shrinkage

Creep, Shrinkage and Relaxation according to JTG and Korean Standard

Particularly important for the construction stage analysis of prestressed and reinforced concrete structures is the correct consideration of the time-dependent effects. In Allplan Bridge the calculation of creep and shrinkage of concrete and relaxation of prestressing steel is code-compliant and now also available for Chinese and Korean Standard.


 

Code-Based

Once the global effects are calculated and the relevant envelopes have been created the user can perform code dependent design tasks to determine the required reinforcement content. After the reinforcement area has been calculated or manually specified, ULS and SLS checks can be performed according to EN code, and ULS flexural capacity checks also according to AASHTO LRFD.

Further New Features

There are many further features and improvements included in this version. An important new functionality is the possibility to interactively moving a station or a section. Furthermore, it is possible to interactively displaying the cross-section at any point along the structure. This gives the user a better control of the parametrically defined geometry. Some new features are available also for tendon modeling. For example, it is possible to use a longitudinal eccentricity for the tendon point definition. This minimizes the necessary definition of stations. A further new functionality is a sophisticated tendon report, which generates an Excel sheet containing not only geometrical data but also certain analytical data, e.g. the initial forces in the tendon. What is more, the construction sequence calculation is extended with a detailed computation of camber values, which are exported to an Excel sheet.


 

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Cấu hình

RECOMMENDATION

› Intel Core i5, i7 or i9 compatible processor with AVX support

› 16 GB RAM

› Screen resolution up to 2560 x 1600 (for higher resolutions as of 4K the scaling of the operating system can be used; multiple monitors should be operated with the same resolution)

› Vulkan 1.1. or OpenGL 4.5 compatible graphics board with 8 GB RAM

 

SUPPORTED OPERATING SYSTEMS

› Windows 10, 64 bit, version 1909*

› Windows 8.1, 64 bit

› Windows Server 2019, Standard-Edition (for Citrix)

› Windows Server 2016, Standard-Edition (for Citrix)

› Windows Server 2012 R2, Standard-Edition (for Citrix)

 

RECOMMENDATION OPERATING SYSTEM

› Windows 10, 64 Bit, Version 1909*
 

RECOMMENDATION DATA SERVER FOR DATA STORAGE

› Windows Server 2019

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