Model

Model

Enter the material properties, configuration and staging information of a bridge.

Bridge Material

Define the material type of the bridge girder. Click the  to the right of the selection field to add or modify material data..  

Span(L)

Specify the spans consecutively.

Radius

Specify the radius in the case of a curved bridge.

Convex

Convex curvature bulging to the +ve direction of the Global Y-axis on Global X-Y plane

Concave

Concave curvature bulging to the -ve direction of the Global Y-axis on Global X-Y plane

Fixed Support

Location of the fixed support (If more than one fixed support exists, the general procedure is used to revise the Wizard-generated data)

Segment Division per Span

Number of elements per span

Cold Joint(S3)

Location of concrete construction joint

Anchorage(S4)

Location of tendon anchorage from the construction joint. The distance applies symmetrically to the construction joint and represents the ends of the thickened webs.

Diaphragm(S5)

Location of tendon anchorage from the construction joint. The distance applies symmetrically to the construction joint and represents the ends of the thickened webs.

Stage duration

Duration of each construction stage (ex., Duration for constructing the bridge segment from the buttress to the construction joint).

It represents the time that takes to assemble, cast and cure the segment and dismantle the formwork.

Initial Member Age

for member (girder)

Specify the initial age, which is the maturity of concrete at the start of a construction stage (i.e., aging of concrete taken place in the immediately preceding stage). It represents the age of concrete when the elements become subjected to loads. The member age is used to reflect the compressive strength (modulus of elasticity), creep, shrinkage, tension loss in tendons, etc. The age is applied at the time of calculating the reaction due to the self-weight of concrete and at the time the reactions of the MSS girders are imposed.

Movable Scaffolding Reaction

When MSS is selected as the Bridge Type, the rear cross beam that supports the movable scaffolding girders for the subsequent stage is located at 3m back from the construction joint of the immediately preceding segment, which in turn supports the rear cross beam. The movable scaffolding girders are supported by the rear cross beam and the next pier. The user enters the reaction at the rear crossbeam due to the weight of the movable scaffolding as it varies from supplier to supplier. The program automatically calculates the weight of concrete and applies to the corresponding construction stage.

MSS/FSM Wizard automatically generates Element groups, Boundary groups and Load groups to create a bridge model. Refer to Define Structure Group, Define Boundary Group, and Define Load Group.