Civil2014 v21 Release Note

DESIGN OF CIVIL STRUCTURES I n t e g r a t e d S o l u t i o n S y s t e m f o r B r i d g e a n d C i v i l E n g i n e e r i n g

Release Note Release Date : Feb. 2014

Product Ver. : Civil 2014 (v2.1)

Civil 2014

Enhancements

1. Improvements in Eurocode Moving Load Analysis 1.1 Centrifugal Forces

1.2 Eccentricity of Vertical Loads of Rail Traffics

1.3 Concurrent Stresses

1.4 User-defined Railway Traffic Loads

1.5 User-defined Permit Truck Loads

1.6 Concurrent Reactions

2. Simultaneous Display of Top and Bottom Stress Diagram

in Bridge Girder Diagram 3. Auto-calculation of Effective Slab Width as per Eurocode 4. Update Geometry of Analysis Model using Buckling Mode

Shape 5. Easy and Fast Generation of Strands/Tendons

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Civil 2014 V2.1 Release Note Civil 2014 Enhancement

Load tab > Moving Load > Moving Load Code > Eurocode Results > Moving Load > Moving Tracer

1. Improvements in Eurocode Moving Load Analysis 1.1 Centrifugal Forces Centrifugal force due to vehicle load in the horizontally curved bridge can be generated as a static load from the Moving Load Tracer. Following vehicle types are supported with “Traffic Line Lane”. Traffic Surface Lane is not supported.

Road Bridge: Load Model 1 Standard and user-defined vehicle Railway Bridge: Standard Vehicle – LM71, SW/0, SW/2, Unloaded Train, HSLM User Defined Vehicle – LM71, SW/0, SW/2, Unloaded Train

Characteristic value of centrifugal forces are automatically calculated as per EN1991-2:2003, clause 4.4.2 and 6.5.1.

Road Bridge Railway Bridge

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1.2 Eccentricity of Vertical Loads of Rail Traffics The effect of lateral displacement of vertical loads can be considered in Standard and User-defined vehicle dialog box. Eccentricity of vertical load to consider cant can be defined in Traffic Line Lane dialog box. Eccentricity needs to be calculated by the user according to the code provision.

Eccentricity of lateral displacement of vertical loads

Load tab > Moving Load > Moving Load Code > Eurocode Load tab > Moving Load > Moving Load Analysis Data > Vehicles > Add Standard/User Defined > EN1991-2:2003 – Rail Traffic Load

Eccentricity to consider cant

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1.3 Concurrent Stresses Concurrent stresses of frame elements due to traffic loads are provided as well as concurrent forces.

Concurrent stress option

Load tab > Moving Load > Moving Load Code > Eurocode Results tab > Results Tables > Beam > Stress

Beam Stress Table

Concurrent Stress Table

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1.4 User-defined Railway Traffic Loads The user-defined traffic loads can be used to consider different National Annex by countries. In the previous version of midas Civil, only standard vehicles were applicable.

Load Model 71 SW/0 HSLM A

Load tab > Moving Load > Moving Load Code > Eurocode Load tab > Moving Load > Vehicles > User Defined

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1.5 User-defined Permit Truck Loads The user-defined permit truck can be used to simulate special vehicle loads with any wheel arrangement and any amount of wheel loads.

Permit Truck

Load tab > Moving Load > Moving Load Code > Eurocode Load tab > Moving Load > Vehicles > User Defined

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1.6 Concurrent Reactions The user can check the concurrent reaction data in a table format for the moving load analysis.

Concurrent Reaction Group Concurrent Reaction Table

Load tab > Moving Load > Concurrent Reaction Group Results tab > Results Tables > Concurrent(Max/Min) Table

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2. Simultaneous display of top and bottom stress diagram – Bridge Girder Diagram In the previous version, either top stress or bottom stress diagram can be displayed. Now, both stress diagram can be displayed at the same time in one graph. Beam Forces/Moments can be displayed with various components at the same time.

Top and Bottom Combined Stress Diagram

Results tab > Bridge > Bridge Girder Diagram

Bending Moment and Shear Force Diagram

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Effective width scale factor – PCS box girder

Effective slab width is automatically calculated and considered in the calculation of bending stresses for both PSC box girder and composite steel plate girder. Code reference: 5.3.2.1 of EN 1992-2 for PSC box girder and 5.4.1.2 of EN 1994-2 for composite steel plate girder

3. Auto-calculation of effective slab width as per Eurocode

Effective width scale factor – Composite steel plate girder

Structure tab > PSC Bridge > Effective Width Structure tab > Composite Bridge > Effective Width

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Buckling Mode Shape

New geometry updated based on buckling mode shape

Select a buckling mode to revise the geometry of model.

Geometric imperfection can easily be included in the analysis model. The buckling behavior of the model can be further investigated by performing geometric and material nonlinear analysis.

4. Update Geometry of Analysis Model using Buckling Mode Shape Create a new model file in which the geometry of analysis model is revised based on the mode shape of linear buckling analysis. The new model can be used for further geometric and material nonlinear analysis to find a buckling load considering geometric imperfection. The mode shape is scaled by the scale factor or by the maximum mode shape. The scaled mode shape is added to the nodal coordinates.

Scale Factor Updated coordinate = (initial coordinate) + (mode shape) x (scale factor) Maximum Value Updated coordinate = (initial coordinate) + (mode shape) x (maximum value)/(maximum mode shape) Results tab > Mode Shapes > Buckling Mode Shapes

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Strands/Tendons can be created using Tendon Template, which will enable the user to generate prestressed beams easily and quickly. Auto-generation of the UK PSC section database is supported. Straight tendons and harped tendons can be defined based on the span and section information.

5. Easy and Fast Generation of Strands/Tendons

Structure tab > Wizard > PSC Bridge > Tendon Template

Tendon Template Add/Modify Tendon Template

Civil2014 v21 Release Note

Documents

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