Partial Factor

 

Overview

IMG_C_ICON_DOT.gifPartial factor which is derived from Euro Code (EN1997-1 Annex A) can be applied on the 2D model.

    (Partial factor will be considered to materials which is containing the cohesion and friction angle and construction stage analysis with stress type.)

 

Methodology

 

Partial Factor

Import database: Values of partial factor for permanent load / variable load / soil materials can be defined from database or those values can be defined as user define. it will be indicated on the partial factor window whether apply the factors for load and soil materials.

Values of

Partial Factor

Permanent

Variable

Soil

 

Fav.

Unfav.

Fav.

Unfav.

Effective Cohesion

(c)

tan Φ’

Undrained

Strength

(su)

 
 

Eurocode 7 - DA1, C1

1.000

1.350

1.000

1.500

1.000

1.000

1.000

 

Eurocode 7 - DA1, C2

1.000

1.000

1.000

1.300

1.250

1.250

1.400

 

Eurocode 7 - DA2

1.000

1.350

1.000

1.500

1.000

1.000

1.000

 

Eurocode 7 - DA3

1.000

1.350

1.000

1.500

1.250

1.250

1.400

 

 

DA1, C1: Partial factor will apply to load only.

DA1, C2: Partial factor will apply to load and soil material.

DA2: DA2 is similar with DA1, C1. But, the factors for pile and footing are different.

DA3: DA3 is similar with DA1, C2. But, the factor for load (Unfavorable under Variable) is different.

 

[ADD]: Add the defined partial factor

[Modify]: Modify the defined partial factor

[Delete]: Delete defined partial factor

 

Material

Material needs to be selected under this tab. It can be compared between original and factored properties from partial factor window.

 

Loads

Factor will apply to selected load set.

 

 

Partial factor will be defined with construction stage analysis which is containing the stress analysis and this construction stage can make sub-stage.

Sub-stage will be defined with stage name and partial factor which is created in partial factor function. The name of sub-stage will be specified with “name of construction stage_name of sub-stage”.

 

 

Partial factor can be defined under analysis control and it will be applied to every construction stage. But, User needs to define partial factor for sub-stage manually.

 

Ex)

PF1 (Partial Factor 1) is applied from analysis control, PF2 (Partial Factor 2) is applied from sub-stage.

 

Stage 1(PF1)

↓→ Stage1_1(PF2)

Stage 2(PF1)

 

- Properties under PF1: Original Properties x PF1

- Properties under PF2: Original Properties x PF2