MIDAS CIVIL Integral Bridges Soil Structure Interaction Tips & Tutorials Substructures Bridge Engineering Spring Support Field_Bridge Category_How-to Structure Type_Bridge
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MIDAS CIVIL Bridge Design Bridge Insight Moving Load Optimization Traffic Loads Traffic Lane Moving Load Case Field_Bridge Category_Knowledge Category_How-to Structure Type_Bridge Design Code_Eurocode Design Code_BS Design Code_AASHTO
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MIDAS CIVIL News & Trends API Application Programming Interface MIDAS CIM Excel JSON Field_Bridge Category_Knowledge Category_Industry Structure Type_Bridge
1. MIDAS Open API (Application Program Interface) Workflow
API (Application Programming Interface) is a type of software that provides a connection between computers or between computer programs. Furthermore, API helps interface within the software. There are often misunderstandings of why an engineer wants to implement API. First of all, rather than focusing on the value of the API, it is better to think about the value of the effect it brings. APIs make sense when they provide a channel through which businesses can access the current value in new ways.
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Introduction
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Time History Analysis Load Rating Fatigue Analysis Case Study Field_Bridge Category_Case Study Structure Type_Bridge
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In June 2020, we hosted a webinar, “How I Design Bridge : Load Rating of Steel U-Through Bridge" by Abdullah Zaid, Senior Engineer/SMEC.
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MIDAS CIVIL Bridge Insight Substructures Bridge Bearings Bridge Components Curved Bridges Radial Bearing Layout Tangential Bearing Layout Hybrid Bearing Layout Superstructures Bearing Arrangement Field_Bridge Category_Knowledge Structure Type_Bridge
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Bearing Arrangement for Curved Bridges
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MIDAS CIVIL Dynamic Analysis Bridge Insight Cable Stayed Bridges Response Spectrum Fan Cable Stayed Bridge Unknown Load Factor Cable Stiffness Semi-Fan Cable Stayed Bridge Harp Cable Stayed Bridge Arrangement of Cable System Field_Bridge Category_Knowledge Category_How-to Structure Type_Bridge Design Code_Eurocode
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Dynamic Analysis of Fan, Semi-Fan, and Harp Type of Cable-Stayed Bridges
While modeling cable-stayed bridges, the different types of cable arrangements such as Fan, Semi-Fan, and Harp type is often considered. Since they vary in cable arrangement, the pretension in the cables is different and the deflection, bending moment, and stresses vary in the bridge. It then becomes prudent to choose the best arrangement for a more optimized design leading to lesser cost and increased safety.
Figure 1: Cable Stayed Bridge
In this article, we present, in a concise way, the modeling of a Cable-Stayed Bridge in midas civil with three different cable arrangements. Furthermore, Response Spectrum analysis is carried out on the models to study the Dynamic Responses of the three arrangements.
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MIDAS CIVIL Bridge Insight Construction Stage Analysis Camber Camber Control Initial Tangent Displacement Field_Bridge Category_Knowledge Category_How-to Structure Type_Bridge
Camber Control in midas Civil
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Meshing
As structural engineers, whenever we need to analyze a complex structure, we turn to FEM (Finite Element Method) analysis for a quick solution with acceptable accuracy. The generalized beam element model is quite sufficient in most cases; however, there are a few instances in which we may need to go for detailed 3D finite element analysis. Few such cases are joint analysis, buckling analysis, material non-linear analysis, and so on. But hey, meshing even matters in simple linear analysis! Let’s have a look at the basic guidelines for meshing and the process of mesh convergence.
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MIDAS CIVIL Bridge Design Prestressed Concrete Bridge Insight Structural Design Bridge Construction Prestressed Concrete Bridges Elongation of Tendons Elongation Tolerance Postensioned Concrete Structural Assesment Elongation of Cables Estimated Elongation Field_Bridge Category_Knowledge Structure Type_Bridge Design Code_AASHTO Design Code_ACI
Elongations of Prestressing Steels
When we build prestressed concrete structural members, which is a frequently used material for bridges worldwide, the benefit in material savings and reduction of dimensions is guaranteed only when it is built correctly. Structures behave the way they are built, and not the way they are designed, so it is imperative that the designer and reviewer engineers provide the necessary information so that the construction process is oriented towards a structure that meets all safety requirements.
Figure.1 Bridge span and length
In this article, we present, in a concise way, the reasons why the elongations of prestressing steels in bridges should be controlled, and in the end, we provide a comparison of a real case in contrast to what is obtained from numerical modeling. Also, you can download a spreadsheet template (Click here) for the manual calculations of the friction loss and elongations that you can use to compare with the reliable results of midas Civil.
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MIDAS CIVIL Bridge Insight AASHTO LRFD Bridge Span Field_Bridge Category_Knowledge Structure Type_Bridge Design Code_AASHTO
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MIDAS CIVIL Project Tutorial Live Load Limit State Design Composite Section Field_Bridge Category_Knowledge Category_How-to Structure Type_Bridge Design Code_AASHTO
Bridge Rating in Midas
Table of Contents
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MIDAS CIVIL PSC Bridge Project Tutorial Tendon Profile Arrangement Field_Bridge Category_How-to Structure Type_Bridge
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download 80 Masterworks of Civil Engineering
Design with Prestress Tendon Profile in midas Civil
Table of Contents
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MIDAS CIVIL Project Tutorial Seismic Analysis Damping Verrazzano Narrows Bridge IRC 6 Response Spectrum Analysis free vibration IRC SP 114 Spectral Data Field_Bridge Category_Knowledge Category_How-to Structure Type_Bridge
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News & Trends Cable Stayed Bridges Suspension Bridges George Washington Bridge Fort Pitt Bridge Verrazzano Narrows Bridge Onaruto Bridge Rainbow Bridge Bowstring Arch Bridges Double Layered Truss Girders Sherman Minton Bridge Gwangan Bridge Gogeum Bridge Field_Bridge Category_Knowledge Structure Type_Bridge
1. Introduction
Depending on the purpose, a bridge can be planned in various shapes. To enable a large amount of transportation, a bridge designer can apply several design considerations to a bridge design. Let’s look at one of them.
A double-layer bridge provides more space through the double-layer girder to transport vehicles, trains, or pedestrians. This type of girder has enough vertical clearance to carry them. Therefore, it could make clearance issues under the bridge, and also it could make aero stability issues. Nevertheless, the double-layer girder can be one of the available options for a bridge in areas where heavy traffic is expected.
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MIDAS CIVIL Bridge Insight Composite Section Composite Bridge Design Ebook Field_Bridge Category_Knowledge Structure Type_Bridge
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Bridge Analysis MIDAS CIVIL Time History Analysis Load Rating Fatigue Analysis Case Study Bridge Engineering Field_Bridge Category_Knowledge Category_Case Study Structure Type_Bridge
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Load Rating of Steel U-Through Bridge
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Bridge Analysis MIDAS CIVIL Construction Stage Bridge Insight Bridge Engineering Structural Analysis Construction Stage Analysis Field_Bridge Category_Knowledge Structure Type_Bridge
Interpreting Construction Stage Analysis
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Bridge Analysis MIDAS CIVIL Bridge Insight Rail Structure Interaction UIC Code RSI Continuous Welded Rail Field_Bridge Category_Knowledge Structure Type_Bridge
Comparison for Theoretical and Software Output for RSI
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MIDAS CIVIL Bridge Insight P-M P-M Interaction Curve P-M Interaction Diagram Structure Type_Building Field_Bridge Category_Knowledge Structure Type_Bridge Design Code_ACI
P-M Interaction Diagram: Circular Section
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Spine and Wind Construction
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