Left

CivilFEM Online Help

Official Websites: CivilFEM | CivilFEM Licenses | Ingeciber
CivilFEM powered by Marc: Installation | Documentation | Python Guide | Theory Manual | Verification Manual | PDF | Class 3
CivilFEM for Ansys: Installation | Documentation | Verification Manual | Instalación | Documentación | PDF | PDF (ES) | Class 3
CivilFEM Apps for Ansys Workbench: Installation | Licensing | FAQ | Reinforced Concrete | Structural Steel | Theory Manual | PDF | Class 3
Right

~DIMPRS

 

~DIMPRS, Lab1, Lab2, DIRKEY, VAL1, VAL2, VAL3, VAL4, VAL5, VAL6, VAL7, VAL8, VAL9, VAL10, VAL11, VAL12, VAL13, VAL14

Designs prestressed concrete cross sections

POST1: Prestressed concrete

Lab1, Lab2

Design type. These labels are related with the CHCKTYPE label used to retrieve results.

DIRKEY

Identity key of the bending plane or shear direction to be designed.

VAL1, VAL2, VAL3 ... VAL14

Arguments used to specify certain design options.

 

Lab1= SHT

~DIMPRS, SHT, Lab2, DIRKEY, , , , , , , , , VAL9

Designs shear and torsion on prestressed concrete cross sections. Valid labels are:

Lab2

Description

SHEAR

Only shear design. Not taken into account torsional movement. (CHCKTYPE = DS_SH).

TORSION

Only torsional design. Not taken into account shear force. (CHCKTYPE = DS_TR).

BOTH

Combined shear and torsional design. Default value. (CHCKTYPE = DS_SHTR).

 

DIRKEY

Description

0

Shear design in element Y direction (shear QY). Default value.

1

Shear design in element Z direction (shear QZ).

If the active code is ACI 318-05 or ACI 349-01:

VAL9

Maximum steel strength force  

0

Restricts the value of the strength force up to the maximum provided in the code. Default value

1

Strength force limitation ignored

 

Lab1= SHELL

~DIMPRS, SHELL, Lab2, , VAL1, VAL2, VAL3, VAL4, VAL5, VAL6, VAL7, VAL8, VAL9, VAL10

Designs shell vertices. Valid labels are:

Lab2

Description

SHEAR

Radial shear design according to ACI 359. (CHCKTYPE = DS_SH).

VAL1

Load category:

= 0® Factored loads.

= 1® Service loads

VAL2

Force Classification:

= 0 or 1® Primary force.

= 2® Primary+Secondary forces.

= 3 ® Structural integrity Test.

VAL7

PLS, load step number of the existing loads.

VAL8

PSS, substep of the existing loads.

VAL9

Maximum steel strength force

= 0 Restricts the value of the strength force up to the maximum provided in the code. Default value.

= 1 Strength force limitation ignored.

TNGSHR

Tangential shear design (in plane shear) according to ACI 359 code. (CHCKTYPE =DS_TSH).

VAL1

Load category:

= 0® Factored loads.

= 1® Service loads.

VAL2

Force Classification:

= 0 or 1® Primary force.

= 2® Primary+Secondary forces.

= 3 ® Structural integrity Test.

VAL3

LSP, load step number where pressure, prestress and dead load are applied.

VAL4

SSP, substep number where pressure, prestress and dead load are applied.

VAL5

LSL, load step number where lateral loads are applied (earthquake, wind or tornado).

VAL6

SSL, substep number where lateral loads are applied (earthquake, wind or tornado).

VAL7

LST, load step number where thermal loads are applied

VAL8

SST, subset number where thermal loads are applied

VAL9

Maximum steel strength force

= 0 Restricts the value of the strength force up to the maximum provided in the code. Default value.

= 1 Strength force limitation ignored.

VAL10

Tangential shear strength limit RG 1.136 (SRP 3.8.1, Section II.5.A)

= 0 limit is ignored (default value).

= 1 limit is used

BEND_AXL

Flexure and axial loads design according to ACI 359 code. (CHCKTYPE = DS_2D).

VAL1

Load category:

= 0® Factored loads

= 1® Service loads.

VAL2

Force Classification:

= 0 or 1® Primary force.

= 2® Primary+Secondary forces.

= 3® Primary+SIT

= 4® Primary+Secondary forces+SIT

= 5® Primary+SIT (RG 1.90)

= 6® Primary+Secondary forces+SIT (RG 1.90)

VAL3

Stress strain diagram:

= blank ® diagram selected as the Design Diagram in the Material (civil preprocessor> materials)

= 0® User defined

= 1® PCA parabolic

= 2® Rectangular

= 3® Parabolic ACI359

= 4® Linear ACI359

VAL9

Maximum steel strength force

= 0 Restricts the value of the strength force up to the maximum provided in the code. Default value.

= 1 Strength force limitation ignored.

VAL10

Reinforcement distribution to be obtained:

= 0 Minimize reinforcement amount (default value)

= 1 Distribute all reinforcement on one surface, if possible.

= 2 Symmetric reinforcement (same amount on top and bottom surfaces)

BEND_SHR

Design for flexure, axial, tangential and radial shear loads according to ACI 359-04 code. (CHCKTYPE = DS_2DSH).

VAL1

Load category:

= 0® Factored loads

= 1® Service loads.

VAL2

Force Classification:

= 0 or 1® Primary force.

= 2® Primary+Secondary forces.

= 3® Primary+SIT

= 4® Primary+Secondary forces+SIT

= 5® Primary+SIT (RG 1.90)

= 6® Primary+Secondary forces+SIT (RG 1.90)

VAL3

LSP, load step number where pressure, prestress and dead load are applied.

VAL4

SSP, substep number where pressure, prestress and dead load are applied.

VAL5

LSL, load step number where lateral loads are applied (earthquake, wind or tornado).

= -1 lateral loads are obtained by subtracting the dead loads from the main loads.

VAL6

 

SSL, substep number where lateral loads are applied (earthquake, wind or tornado).

VAL7

LST, load step number where thermal loads are applied

= -1 no effective prestress is present and Vc=0

VAL8

SST, substep number where thermal loads are applied

VAL9

LSE, load step number of the existing loads.

VAL10

SSE, substep of the existing loads.

VAL11

Tangential shear strength limit RG 1.136 (SRP 3.8.1, Section II.5.A)

= 0 limit is ignored (default value).

= 1 limit is used

VAL12

Stress strain diagram:

= blank ® diagram selected as the Design Diagram in the Material (civil preprocessor> materials)

= 0® User defined

= 1® PCA parabolic

= 2® Rectangular

= 3® Linear ACI359

= 4® Parabolic ACI359

VAL13

Maximum steel strength force

= 0 Restricts the value of the strength force up to the maximum provided in the code. Default value.

= 1 Strength force limitation ignored.

VAL14

Reinforcement distribution to be obtained:

= 0 Minimize reinforcement amount (default value)

= 1 Distribute all reinforcement on one surface, if possible.

= 2 Symmetric reinforcement (same amount on top and bottom surfaces)

 

Notes:

- Calculation results are stored in the CivilFEM results file as an alternative. The available results for cross sections are the following:

If active code is EC2-91:

CHCKTYPE

DS_SH: Shear design.

Results

Description

VRD1

Design shear resistance without considering the reinforcement in the section.

CRVRD1

Ratio of the design shear force (VSd) to the resistance VRd1.

VRD2

Maximum design shear force that can be carried without crushing of the concrete compressed struts.

CRVRD2

Ratio of the design shear force (VSd) to the resistance VRd2.

VWD

Contribution of the necessary shear reinforcement.

ASSH

Area per unit length of defined shear reinforcement.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_TR: Torsion design.

Results

Description

TRD1

Maximum torsional moment that can be resisted by the compression struts of the concrete.

CRTRD1

Ratio of the design torsional moment (TSd) to the resistanceTRd1.

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_SHTR: Shear and torsion design.

Results

Description

VRD1

Design shear resistance without considering the reinforcement in the section.

CRVRD1

Ratio of the design shear force (VSd) to the resistance VRd1.

VRD2

Maximum design shear force that can be carried without crushing of the concrete compressed struts.

CRVRD2

Ratio of the design shear force (VSd) to the resistance VRd2.

VWD

Contribution of the necessary shear reinforcement.

TRD1

Maximum torsional moment that can be resisted by the compression struts of the concrete.

CRTRD1

Ratio of the design torsional moment (TSd) to the resistanceTRd1.

CRTCST

Criterion for the ultimate compression strength of the concrete due to combined shear and torsion.

ASSH

Area per unit length of defined shear reinforcement.

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DS_OK

Designed and not designed elements.

 

If active code is EC2-08 or ITER:

CHCKTYPE

DS_SH: Shear design.

Results

Description

VRDC

Design shear resistance without considering the reinforcement in the section (VRd,c).

CRT_1

Ratio of the design shear force (VEd) to the residtence VRd,c.

VRDS

Design shear resistence of shear reinforcement (VRd,s).

VRDMAX

Maximum design shear force that can be carried without crushing of the concrete compressed struts (VRd,max).

CRT_3

Ratio of the shear force VEd to the resistance VRd,max.

ASSH

Area per unit length of defined shear reinforcement.

DSG_CRT

Designed and not designed elements.

 

CHCKTYPE

DS_TR: Torsion design.

Results

Description

TRDMAX

Maximum torsional moment that can be resisted by the compression struts of the concrete (TRd,max).

CRT_1

Ratio of the design torsional moment (TEd) to the resistance TRd,max.

TRD

Maximum torsional moment that can be resisted by the torsional reinforcement (TRd).

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DSG_CRT

Designed and not designed elements.

 

CHCKTYPE

DS_SHTR: Shear and torsion design.

Results

Description

VRDC

Design shear resistance without considering the reinforcement in the section (VRd,c).

CRT_1

Ratio of the design shear force (VEd) to the resistence VRd,c.

VRDS

Design shear resistence of shear reinforcement (VRd,s).

VRDMAX

Maximum design shear force that can be carried without crushing of the concrete compressed struts (VRd,max).

CRT_3

Ratio of the shear force VEd to the resistance VRd,max.

ASSH

Area per unit length of defined shear reinforcement.

TRDMAX

Maximum torsional moment that can be resisted by the compression struts of the concrete (TRd,max).

CRT_4

Ratio of the design torsional moment (TEd) to the resistance TRd,max.

TRD

Maximum torsional moment that can be resisted by the torsional reinforcement (TRd).

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

CRT_6

Resistance criterion to combined torsion and shear

 (CRT_3 + CRT_4)

DSG_CRT

Designed and not designed elements.

 

If active code is EHE-98 or EHE-08:

CHCKTYPE

DS_SH: Shear design.

Results

Description

VU1

Ultimate shear resistance due to oblique compression of concrete in web.

CRTVU1

Ratio of the design shear (Vrd) to the resistance Vu1.

VCU

Contribution of concrete to shear resistance.

VSU

Contribution of the web shear transverse reinforcement to the shear resistance.

ASSH

Area per unit length of defined shear reinforcement.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_TR: Torsion design.

Results

Description

TU1

Maximum torsional moment that can be resisted without crushing due to compression of the concrete.

CRTTU1

Ratio of the design torsional moment (TSd) to the resistance Tu1.

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_SHTR: Shear and torsion design.

Results

Description

VU1

Ultimate shear resistance due to oblique compression of concrete in web.

CRTVU1

Ratio of the design shear (Vrd) to the resistance Vu1.

VCU

Contribution of concrete to shear resistance.

VSU

Contribution of the web shear transverse reinforcement to the shear resistance.

TU1

Maximum torsional moment that can be resisted without crushing due to compression of the concrete.

CRTTU1

Ratio of the design torsional moment (TSd) to the resistance Tu1.

CRTCST

Criterion for the ultimate compression strength of the concrete due to combined shear and torsion.

ASSH

Area per unit length of defined shear reinforcement.

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DS_OK

Designed and not designed elements.

 

If active code is ACI 318:

CHCKTYPE

DS_SH: Design for shear.

Results

Description

VC

Shear strength provided by concrete.

VS

Shear strength provided by shear reinforcement.

ASSH

Area per unit length of defined shear reinforcement.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_TR: Torsional design.

Results

Description

CRTTC

Concrete failure criterion.

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_SHTR: Torsional and shear design.

Results

Description

VC

Shear strength provided by concrete.

VS

Shear strength provided by shear reinforcement.

CRTTC

Concrete failure criterion.

ASSH

Area per unit length of defined shear reinforcement.

ASTT

Area per unit length of torsional transverse reinforcement defined.

ASLT

Total area of torsional longitudinal reinforcement defined.

DS_OK

Designed and not designed elements.

 

If active code is ACI 359-04:

CHCKTYPE

DS_SH: Radial shear design on shells

Results

Description

VC_X

Allowable shear stress in concrete, X direction.

VS_X

Shear strength provided by shear reinforcement, X direction.

VU_X

Nominal shear stress, X direction

ASSH_X

Area per unit length of shear reinforcement, X direction.

VC_Y

Shear stress provided by concrete, Y direction.

VS_Y

Shear strength provided by shear reinforcement, Y direction.

VU_Y

Nominal shear stress, Y direction

ASSH_Y

Area per unit length of shear reinforcement, Y direction.

ASSH

Area per unit area of shear reinforcement.

DS_OK

Designed and not designed elements.

 

 

CHCKTYPE

DS_TSH: Tangential shear (in plane) design.

Results

Description

VC

Shear strength provided by concrete.

ASX

Reinforcement amount for in plane shear, X direction.

ASY

Reinforcement amount for in plane shear, Y direction.

CRT_ASO

Tangential shear strength limit criterion.

DSG_CRT

Total design criterion.

 

CHCKTYPE

DS_2D: Design for flexure and axial loads on shells.

Results

Description

ASTX

Reinforcement amount at X top.

ASBX

Reinforcement amount at X bottom.

ASTX

Reinforcement amount at Y top.

ASBX

Reinforcement amount at Y bottom.

DS_OK

Designed and not designed elements.

 

CHCKTYPE

DS_2DSH: Design for flexure, axial, radial shear and tangential shear loads on shells.

Results

Description

ASTX

Reinforcement amount at X top.

ASBX

Reinforcement amount at X bottom.

ASTY

Reinforcement amount at Y top.

ASBY

VC

Reinforcement amount at Y bottom.

Tangential shear strength provided by concrete.

ASX

Reinforcement amount for in plane shear, X direction.

ASY

Reinforcement amount for in plane shear, Y direction.

CRT_ASO

Orthogonal reinforcement limit criterion.

VC_X

Allowable radial shear stress in concrete, X direction.

VS_X

Shear strength provided by radial shear reinforcement, X direction.

VU_X

Nominal radial shear stress, X direction

ASSH_X

Area per unit length of radial shear reinforcement, X direction.

VC_Y

 Allowable radial shear stress in concrete, Y direction.

VS_Y

Shear strength provided by radial shear reinforcement, Y direction.

VU_Y

Nominal radial shear stress, Y direction

ASSH_Y

Area per unit length of radial shear reinforcement, Y direction.

ASSH

Area per unit area of radial shear reinforcement.

DSG_2D

Bending plus axial design criterion.

DSG_TSH

Tangential shear design criterion.

DSG_RSH

Radial shear design criterion.

DSG_CRT

Total design criterion.

 

Notes

 

- All calculation is made according to the established in the active code (see ~CODESEL command).

- Design is made for the ends (cross sections and shell vertex) of the selected elements.

Menu Paths

Main Menu > Civil Postprocessor > Code Checking> ###### > Design by code > Beams & Solid

Main Menu > Civil Postprocessor > Code Checking> ###### > Design by code > Shells

Where ###### represents the active code (prestressed concrete).

¾¾¾¾¾¾¨¾¾¾¾¾¾