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Follow the next steps to specify the load cases (classes) combined with the load factors.

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Go to Combinations/Design Load Combinations/Limit States one last time and select Load Cases 1.

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Click on three-dots icon under DC1 column of StrengthI limit state and click Select.

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Select DC1 (Remember, its content was composed of the corresponding construction stages in Combinations/Result Extraction Cases step).

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In same way, keep selecting the load cases for the corresponding limit states.

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Load cases not included in this example should remain as NULL.

Tip

Serviceability limit states (Strength, Service, and Fatigue) and load combinations are completed.

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Follow the next steps to include a unique load combination for the constructability limit state.

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Under Combinations/Design Load Combinations/Limit States, add a row named StrIConst.

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Select DC1 and keep the rest of the load cases as NULL.

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Enter γmax as 1.4.

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Go to Combinations/Design Load Combinations/Load Combination Table one last time.

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Add a row named SuperStrConstLCT.

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Select StrengthI column as StrIConst, and keep the rest of the limit states as NULL.

Tip

Analysis loads & combinations of the code checks are completed.

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Go to Limit States under Design Load Combinations on the tree view.

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Copy Load Modifiers, Load Cases 1, Load Cases 2, and Load Cases 3 from model inputs and paste into OpenBrIM.

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Limit States

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Load Modifiers

Code Block
StrengthI	1.0000	1.0000	1.0000
StrengthIII	1.0000	1.0000	1.0000
StrengthV	1.0000	1.0000	1.0000
ServiceI	1.0000	1.0000	1.0000
ServiceII	1.0000	1.0000	1.0000
FatigueI	1.0000	1.0000	1.0000
FatigueII	1.0000	1.0000	1.0000
StrengthII	1.0000	1.0000	1.0000
StrengthIV	1.0000	1.0000	1.0000
ServiceIII	1.0000	1.0000	1.0000
ServiceIV	1.0000	1.0000	1.0000
StrIConst	1.0000	1.0000	1.0000

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Load Cases 1

Code Block
StrengthI	DC1	1.2500	0.9000	DC2	1.2500	0.9000	DW	1.5000	0.6500	LL	1.7500	1.7500	BR	1.7500	1.7500	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	1.7500	1.7500	NULL	1.0000	1.0000
StrengthIII	DC1	1.2500	0.9000	DC2	1.2500	0.9000	DW	1.5000	0.6500	LL	0.0000	0.0000	BR	0.0000	0.0000	WS	1.0000	1.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	0.0000	0.0000	NULL	1.0000	1.0000
StrengthV	DC1	1.2500	0.9000	DC2	1.2500	0.9000	DW	1.5000	0.6500	LL	1.3500	1.3500	BR	1.3500	1.3500	WS	1.0000	1.0000	WL	1.0000	1.0000	TU	1.2000	0.5000	CENT	1.3500	1.3500	NULL	1.0000	1.0000
ServiceI	DC1	1.0000	1.0000	DC2	1.0000	1.0000	DW	1.0000	1.0000	LL	1.0000	1.0000	BR	1.0000	1.0000	WS	1.0000	1.0000	WL	1.0000	1.0000	TU	1.2000	0.5000	CENT	1.0000	1.0000	NULL	1.0000	1.0000
ServiceII	DC1	1.0000	1.0000	DC2	1.0000	1.0000	DW	1.0000	1.0000	LL	1.3000	1.3000	BR	1.3000	1.3000	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	1.3000	1.3000	NULL	1.0000	1.0000
FatigueI	DC1	0.0000	0.0000	DC2	0.0000	0.0000	DW	0.0000	0.0000	LLFat	1.7500	1.7500	BR	1.7500	1.7500	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	0.0000	0.0000	CENT	1.7500	1.7500	NULL	1.0000	1.0000
FatigueII	DC1	0.0000	0.0000	DC2	0.0000	0.0000	DW	0.0000	0.0000	LLFat	0.8000	0.8000	BR	0.8000	0.8000	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	0.0000	0.0000	CENT	0.8000	0.8000	NULL	1.0000	1.0000
StrengthII	DC1	1.2500	0.9000	DC2	1.2500	0.9000	DW	1.5000	0.6500	LL	1.3500	1.3500	BR	1.3500	1.3500	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	1.3500	1.3500	NULL	1.0000	1.0000
StrengthIV	DC1	1.5000	0.9000	DC2	1.5000	0.9000	DW	1.5000	0.6500	LL	0.0000	0.0000	BR	0.0000	0.0000	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	0.0000	0.0000	NULL	1.0000	1.0000
ServiceIII	DC1	1.0000	1.0000	DC2	1.0000	1.0000	DW	1.0000	1.0000	LL	1.0000	1.0000	BR	1.0000	1.0000	WS	0.0000	0.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	1.0000	1.0000	NULL	1.0000	1.0000
ServiceIV	DC1	1.0000	1.0000	DC2	1.0000	1.0000	DW	1.0000	1.0000	LL	0.0000	0.0000	BR	0.0000	0.0000	WS	1.0000	1.0000	WL	0.0000	0.0000	TU	1.2000	0.5000	CENT	0.0000	0.0000	NULL	1.0000	1.0000
StrIConst	DC1	1.4000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	WL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000

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Load Cases 2

Code Block
StrengthI	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.7500	1.7500	NULL	0.0000	0.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.7500	1.7500
StrengthIII	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000
StrengthV	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.3500	1.3500	NULL	0.0000	0.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.3500	1.3500
ServiceI	NULL	1.2000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	0.5000	0.5000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.0000	1.0000
ServiceII	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.3000	1.3000	NULL	0.5000	0.5000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.3000	1.3000
FatigueI	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.7500	1.7500	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.7500	1.7500
FatigueII	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.8000	0.8000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.8000	0.8000
StrengthII	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.3500	1.3500	NULL	0.0000	0.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.3500	1.3500
StrengthIV	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000
ServiceIII	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	0.5000	0.5000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	1.0000	1.0000
ServiceIV	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000	NULL	0.0000	0.0000
StrIConst	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000	NULL	1.0000	1.0000

Load Cases 3

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Info

After clicking on ‘Combinations> Design Load Combinations> Limit States' in the navigation treeview, follow the steps to define the Limit State. You can use the collapsed documentation page below for more information on the explanations of each parameter.

Expand
titleLimit States
Limit States [SIG]

1

(blue star) Click the three-dots on the first cell of the Name and click Import OBPAASHTOLimitState.

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2

(blue star) Import following limit states from OpenBrIM Library

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Strength Limit States > StrengthI

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Strength Limit States > StrengthII

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Strength Limit States > StrengthIII

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Strength Limit States > StrengthIV

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Strength Limit States > StrengthV

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Service Limit States > ServiceI

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Service Limit States > ServiceII

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Service Limit States > ServiceIII

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Service Limit States > ServiceIV

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Fatigue Limit States > FatigueI

  • OpenBrIM Bridge Objects > AASHTO 9th Edition Limit States > Fatigue Limit States > FatigueII

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3

(blue star) Keep the ηD, ηR and ηI as default.

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4

(blue star) Click on the DC1 cell and select a Result Extraction Cases as DC1.

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5

DC2, DW, LL, BR, WS, WL, TU and CE parameters can be defined similarly to DC1.

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6

(blue star) Keep the CL as default.

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7

(blue star) Keep the Load Cases 1 and Load Cases 2 parameters as default.

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8

Proceed to the next step to verify the model.

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Tip

The completed limit states are illustrated below. Please verify that you have the same model on your end by examining each view provided here. For more information on how to perform visual checks, refer to the quick tips.

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Tip

To view the entire procedure explained on this page, please watch the recorded Video below.

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