# Building Repair Cost Model

## Class Name

• RBuildingRepairCostModel

## Location in Objects Pane

• Models > Model > Consequence > Economic > Building Repair Cost

## Model Description

### Model Form

$$l =\left( {{\eta _S} \cdot {C_S} + {\eta _{ND}} \cdot {C_{ND}} + {\eta _{NA}} \cdot {C_{NA}} + {\eta _C} \cdot {C_C}} \right) \cdot A \cdot \exp \left( { - r \cdot t} \right) \cdot \varepsilon$$ where Building repair cost model gets the “$${A}$$” parameter from the Building information model.
Important Notes:
• if the structural damage ratio exceeds the threshold, i.e. $${\eta _S}$$ > $${\eta_R}$$, all damage ratios are set to 1 and the loss is computed based on the modified values
• The cost of repair operation is computed once it is completed (i.e. the repair status changes to 1), otherwise it is 0.
• To use this model in analyzers other than Discrete Event Sampling Anlyzer, the "RepairStatus" property must be a constant parameter with current value of 1
• For further information on this model, refer to Mahsuli, M., Haukaas, T. (2013) and Mahsuli, M., Haukaas, T. (2013).

• No

## Properties

### Object Name

• Name of the object in Rt
• Allowable characters are upper-case and lower-case letters, numbers, and underscore (“_”).
• The name is unique and case-sensitive.

### Display Output

• Determines whether the model is allowed to print messages to the Output Pane.

### Building Information Model

• A building information model object that returns the total area of the building, $${A}$$, to this model.

### Repairability Structural Damage Ratio

• $${\eta_R}$$ = The threshold of Structural Damage Ratio by which the building can be repaired, otherwise, it needs to be demolished and reconstructed

### Structural Damage Ratio

• $${\eta_S}$$ = Structural damage ratio

### Nonstructural Drift Damage Ratio

• $${\eta_{ND}}$$ = Non-structural drift damage ratio

### Nonstructural Acceleration Damage Ratio

• $${\eta_{NA}}$$ = Non-structural acceleration damage ratio

### Content Damage Ratio

• $${\eta_C}$$ = Content damage ratio

### Structural Unit Area Cost

• $${C_S}$$ = Structural unit area cost (given as a real number)

### Nonstructural Drift Unit Area Cost

• $${C_{ND}}$$ = Non-structural drift unit area cost (given as a real number)

### Nonstructural Acceleration Unit Area Cost

• $${C_{NA}}$$ = Non-structural acceleration unit area cost (given as a real number)

### Content Unit Area Cost

• $${C_C}$$ = Content unit area cost (given as a real number)

### Time

• $${t}$$ = Time object

### Annual Interest Rate

• $${r}$$ = Annual interest rate

### Epsilon

• $${\varepsilon}$$ = Model error

### Repair Status

• $${\varsigma}$$ = Status of Repair operation (1 if completed, 0 otherwise)

## Output

• $${l}$$ = Loss due to the repair cost
• The output is an automatically generated generic response object, which takes the object name of the model plus “Response”.