## Load

Define dead loads and live loads of the bridge

### Pavement and Barrier

Input the width of pavement, median strip and barrier.

**b1** : Left barrier width, b5: Right barrier width. The barrier load is applied over the barrier width

**b3** : Median strip width. The median strip load is applied over the median strip width

**b2, b4** : Carriage way width. The wearing surface load is applied over the carriage way width

**P1, P2** : First and the second positions of additional load and utilities load, respectively

The sum of b1 to b5 should be same with Deck Width you typed in Layout tab.

### Dead Loads

When each loads are checked off, the program does not generate the data for the load case.

**Equally to All Girder**

**DC(Before Composite)** : DC load case before the composite action will be distributed equally to all girders.

**DC(After Composite)** : DC load case after the composite action will be distributed equally to all girders.

**DW(Before Composite)** : DW load case before the composite action will be distributed equally to all girders.

**Before Composite**

**Self Weight: Self weight**

**Wet Con'c** : Weight of wet concrete. Load is generated on the concrete weight density and deck thickness

**Form Work** : Weight of form works

The Wet concrete and Form work loads should be input with the unit of force per length square. For Wet concrete, Weight density multiply by thickness makes force per length square

All frame modeling type: The load value is calculated with each deck width and applied to the each girder as an element beam load

All Plate, Deck as Plate, Deck & Web as Plate modeling type: The load value is applied as a pressure load

**S.I.P forms** : Click to apply S.I.P forms instead of normal formwork. S.I.P forms will be applied as loading and it will remain in the place after the wet concrete is hardened.

**- Wet concrete load Case**

**After Composite**

**Barrier** : Weight of the lane barrier

**Median Strip** : Weight of the median barrier/strip installed to separate the traffic lanes.

The Barrier, Median Strip magnitudes should be entered in the unit of force per linear length.

All frame modeling type: This load value is applied over the entire bridge length at the deck ends as nodal loads.

All Plate, Deck as Plate, Deck & Web as Plate modeling type: This load value is applied as pressure loads.

**- Barrier load Case**

**Additional Load** : Weight of the additional point load. Position is defined by value entered. Use above diagram as a reference.

Basically, the distance (P1) is the distance from the reference axis to the first additional load. Multiple locations can be entered and separated by commas. The distance to each location is measured from the left end of the bridge cross section.

Additional load magnitudes should be entered in the unit of force per linear length.

This load value is applied over the entire bridge length at the deck ends as nodal loads.

**Wearing Surface** : Weight of the wearing surface (e.g. asphalt) covering the bridge road

The load magnitude should be entered in the unit of force per length square. (Weight density multiply by wearing thickness)

All frame modeling type: This load value is calculated with each dummy deck spacing distance and applied to the each transverse deck as an element beam load

All Plate, Deck as Plate, Deck & Web as Plate modeling type: The load value is applied as a pressure load

**- Wearing Surface**

**Utilities** : Weight of the utility point load. Position is defined by the value entered. Use the above diagram as a reference.

Basically, the distance (P2) is the distance from the reference axis to the first Utilities load. Multiple locations can be entered and separated by commas. The distance to each location is measured from the left end of the bridge cross section.

The Utilities load magnitude should be entered in the unit of force per linear length.

This load value is applied over the entire bridge length at the deck ends as nodal loads.

### Live Loads

Check on to define Live Loads

**Define Moving Load Case…** : Select moving load code to be used in analysis

**Define Traffic Lane** : Define the location of traffic lane.

**No. of Lanes** : Number of lanes on the bridge.

**Distance** : The distance to each lane center is measured from the left end of the bridge cross section. Each lane width is automatically defined based on the moving load code selected before entering this “Define Traffic Lane”. Based on the Moving Load Code and Traffic Lane information, the program automatically creates the vehicle lane data.

**Define Vehicles** : To enter new or additional vehicle loads. Vehicle loads can be either selected from the standard or manually defined as the “user-defined” type.