Bridge Software Institute FB-MultiPier 5.6 | 246.0 mb
Bridge Software Institute很高兴地宣布FB-MultiPier 5.6的可用性，这是一种非线性有限元分析程序，能够分析桥梁互连的多个桥墩结构。 FB-MultiPier是一个非线性有限元分析程序，能够分析通过桥跨互连的多个桥墩结构。完整结构可以在静态分析中服从完整的AASHTO载荷类型数组，而在动态分析中则可以服从随时间变化的载荷函数。每个墩结构由墩柱和顶盖组成。该结构支撑在具有非线性土壤的桩帽和桩/竖井上。该分析程序将非线性结构有限元分析与用于轴向，横向和扭转土性的非线性静态土模型耦合在一起，从而为耦合的桥墩结构和基础系统提供了可靠的分析系统。 FB-MultiPier在设计人员以图形方式输入结构和基础系统的几何定义的情况下，在内部执行有限元模型的生成。这使工程师可以直接使用设计参数，并减少了创建和解释模型所需的簿记工作。对于面向设计的应用程序来说，FB-MultiPier根据结构和基础系统的参数化几何定义自动生成有限元模型。输入和分析结果均通过基于表单的2D图形和3D图形窗口的简化组合进行处理。Bridge Software Institute is pleased to announce the availability of FB-MultiPier 5.5, is a nonlinear finite element analysis program capable of analyzing multiple bridge pier structures interconnected by bridge spans. 
Major features include: - Option to rigidize pile top portions.- AREMA load combinations for rail bridges.- Customized Design Table output.- Multiple-support excitation for nonlinear dynamic seismic analysis. 
FB-MultiPier performs the generation of the finite element model internally given the geometric definition of the structure and foundation system as input graphically by the designer. This allows the engineer to work directly with the design parameters and lessens the bookkeeping necessary to create and interpret a model. As is a necessity for design-oriented applications, FB-MultiPier automatically generates finite element models given a parametric, geometric definition of the structure and foundation system. Both input and analysis results are handled through a streamlined combination of form-based, 2D graphics, and 3D graphics windows.
Features
Updated Interface
The User Interface (UI) has been updated to more closely adhere to Microsoft(R) User Experience (UX) design guidelines. These updates include use of enlarged icons, use of a standardized font program-wide, updated form stylings, and anti-aliased graphics.
Multiple Pier Modeling
Unique Piers
Each pier in a multi-pier model can be unique, including pier type (general pier or pile bent), soil model, elevations, member properties, skew angle, and bearings. The 2D Bridge window shows the bridge layout in plan and the 3D Bridge window shows the 3D visualization of the bridge.
Pier Rotation
Each pier can be rotated about the vertical (Z) axis. This facilitates modeling skew bridges and radial piers on curved alignments.
Bridge Superstructure
The bridge superstructure is incorporated into the model using an equivalent beam that connects the centerline of two piers. The span can have variable cross section properties. The bearing connections at the pier supports can be released, pinned, roller, integral or user-defined using a custom load-displacement curve.
Two Rows of Bearing Locations
Two independent lines of bearings accommodate the transfer of load from the bridge superstructure to the piers. Unique distributions of bearings can be defined and spaced along each row. In addition, because the bearings are offset from the center of the pier cap, any pier cap torque induced from unequal spans is automatically taken into account.
Wind Load Generator
Generate wind loads for the entire bridge model at once.
Dynamic Analysis
Time Step Integration
Time history load functions and ground acceleration records can be applied to the model. Different time step integration methods are available as well as a variety of analysis control parameters. Concentrated masses and dampers can be added to the model to simulate added mass and energy dissipation effects.
Modal Analysis
The modal analysis option performs a frequency analysis of the model. Both frequencies and mode shapes are provided as output results.
Dynamic Soil Modeling
Soil gap modeling is available to model energy dissipation due to hysteretic damping. Cyclic degradation parameters are also available to modify the lateral soil response during dynamic loading.
Animated Results
The 3D model displacement results can be animated for a time step integration analysis. Animation results can be played and paused and a slider bar is provided for selectively viewing individual time step results.
Time-Displacement Plots
The displacement results for any model node can be plotted over time.
Seismic Database
Ground acceleration records are provided for notable earthquakes.
关于FB-MultiPier。 FB-MultiPier是一种非线性有限元分析程序，能够分析通过桥跨互连的多个桥墩结构。在动态分析中，完整结构可以在静态分析或时变负载函数中受到完整的AASHTO加载类型的影响。每个码头结构由墩柱和帽组成。这种结构支撑在桩帽和具有非线性土壤的桩/轴上。该分析程序将非线性结构有限元分析与轴向，横向和扭转土壤行为的非线性静态土壤模型相结合，为耦合桥墩结构和基础系统提供了一个强大的分析系统。假设结构和基础系统的几何定义由设计者以图形方式输入，FB-MultiPier在内部生成有限元模型。这允许工程师直接使用设计参数并减少创建和解释模型所需的簿记。作为面向设计的应用的必要条件，FB-MultiPier在给定结构和基础系统的参数化几何定义的情况下自动生成有限元模型。输入和分析结果都通过基于表单，2D图形和3D图形窗口的简化组合来处理。FB-MultiPier在给定结构和基础系统的参数化几何定义的情况下自动生成有限元模型。输入和分析结果都通过基于表单，2D图形和3D图形窗口的简化组合来处理。FB-MultiPier在给定结构和基础系统的参数化几何定义的情况下自动生成有限元模型。输入和分析结果都通过基于表单，2D图形和3D图形窗口的简化组合来处理。 关于Bridge Software Institute。 佛罗里达桥梁软件学院的使命是通过向州政府和行业专业人士提供软件，软件维护，技术援助和培训来弥合研究界和运输业的工作。这将主要通过从佛罗里达大学土木工程系的研究项目开始，并进一步完善产品，以易于传播的形式。一般用途的软件维护，升级和改进将是该研究所的主要努力。Florida Software Bridge Institutes的客户包括美国的许多DOT以及大多数从事桥梁设计和分析的咨询公司。
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