culv5 v2.2.2 user guide
DESCRIPTION
Cluv 5TRANSCRIPT
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USER GUIDE TxDOT Concrete Box Culvert Analysis
Program (CULV5) Version 2.2
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CULV5, Version 2.2 2 July, 2012
Table of Contents USAGE ...................................................................................................................................... 3 INPUT ........................................................................................................................................ 3
Header Cards ........................................................................................................................ 3 Card 1 Job Header ....................................................................................................... 3 Card 2 Description Header .......................................................................................... 4 Card 3 Problem (PROB) Header.................................................................................. 4
Specification (SPEC) Card .................................................................................................... 4 Special Loading (SPLD) Card ............................................................................................... 5 Spring (SPRG) Card .............................................................................................................. 5 Culvert Data (CULV) Card ..................................................................................................... 6
DIAGRAMS ............................................................................................................................... 7 DOCUMENT HISTORY ............................................................................................................. 8
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CULV5, Version 2.2 3 July, 2012
USAGE CULV5 is an analysis tool for concrete box culverts. The program determines the forces acting on each
of the different members of the culvert using the direct stiffness method. The user provides input data
for loading conditions, structure geometry, and member sizes. The program outputs the member forces
for use in either a working stress design or a load factor design in accordance with the AASHTO
Standard Specifications for Highway Bridges, 17th
Ed. for highway loadings, and AREMA 2006 in the
case of E72 and E80 loadings.
INPUT Program data is input using a text file which simulates punch card style input, where each line in the text
file represents a card with fixed field format. The code above each input field indicates the required
input type, a la FORTRAN conventions. Codes that begin with an A indicate alphanumeric input, I integer, and F floating point decimal (real numbers). The numbers following these letters disclose the number of characters in the field (e.g. an A10 field can contain up to 10 alphanumeric characters). If a
code is not followed by a number it indicates that the input field has a one character length.
For the floating point decimal fields there are two numbers, the first is the total number of digits in the
field, and the second is the number of digits to follow the implied decimal in the input field. If the
second number is zero, the implied decimal is at the end of the field and therefore the input must be right
justified if no decimal is input (i.e., if a number without an explicit decimal is entered in the field leaving
a blank space or blanks spaces of the field to the right of the entered number, that space or spaces will be
interpreted as a zero or zeros to the left of the decimal and the intended input value will be 10, 100, or
1000 times larger than intended for 1, 2, and 3 such spaces, respectively). All implied decimal locations
may be overridden by placing an actual decimal point in the input field (e.g. an F5.4 field, entering
12345 would be read by the program as 1.2345, but entering 12.45 would be read as 12.45). The use of
an actual decimal point has the effect of reducing the number of significant figures for a field by 1 but
has the added assurance that the number entered is not off by a magnitude, or magnitudes, of 10. Also, if
this reduction in precision is acceptable, the user may override all implied decimals and thus make the
resulting input file more humanly readable.
Header Cards
These cards are similar to the cards used by many TxDOT structural programs, such as PSTRS14 or
CAP18, and these cards will be repeated as the header for each page of output. The first card may be
free-format alphanumeric fields, but the following format is recommended, though the PSF Number is
no longer relevant.
Card 1 Job Header
A3
1 10 20 30 40 50 60 70 80
* Default is the current date, which is retrieved from the operating system.
A6 A11
Coded
by
Date
(Today's Date)*
PSF
Number
Control-
Section-Job
A11A15 A10
Highway
NumberCounty
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CULV5, Version 2.2 4 July, 2012
Card 2 Description Header
Card 3 Problem (PROB) Header
Use one PROB card per problem.
The CULV cards that follow are identified with this card until a new PROB card is encountered.
Specification (SPEC) Card
Systems of units and AASHTO Specification related toggles as well as soil weight are set by the input
on the SPEC card. Defaults are shown in parentheses. This card is required to deviate from the default
values.
Columns Description
Unit code, E = English, M = Metric, (E = English)
Live load code, 1 for HS20, 2 for H20, 3 for HS15, 4 for H15, 5 for E80, 6 for E72, 7 for
HS25, 9 for no live load, (1 = HS20)
Omit live load code, 1 for live load to be neglected if fill height is great enough as per
AASHTO specs, 2 for live load to be included regardless of fill height (1).
Load Factor Code, 1 for Service Loads, 2 for Load Factors, (2 = Load Factors).
Weight of soil in lbs/ft3 or kg/m3 (120/1922).
Description for the CULV5 Analysis
Enter free form text
A80
1 10 20 30 40 50 60 70 80
P R O B
1 10 20 30 40 50 60 70 80
CARD
ID
Alphanumeric comments
Enter structure name or other descriptive comments
A75
Unit Code Load Factor Code (Service/Load Factor)
LL Code
Omit LL
A I I I
S P E C
1 5 7 10 14 20 30 40 50 60 70 80
CARD
ID
Soil Weight
F4.0
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CULV5, Version 2.2 5 July, 2012
Special Loading (SPLD) Card
This card is optional and it is not normally included. It is used only for additional dead loads.
Columns Description
Additional uniform dead load in kip/feet or kN/m (0.0)
First additional concentrated dead load in kips or kN (0.0)
Position of first load (distance from centerline of leftmost wall of the culvert to the load
in feet or meter (0.0)
Second additional concentrated dead load in kips or kN (0.0)
Position of second load (distance from centerline of leftmost wall of the culvert to the
load in feet or meter (0.0)
Third additional concentrated dead load in kips or kN (0.0)
Position of third load (distance from centerline of leftmost wall of the culvert to the load
in feet or meter (0.0)
Spring (SPRG) Card
This card is used to input spring stiffness values for the floor supports. This card is only used when the
spring support option is chosen for the floor support code (Z in column 31 on the CULV card).
Columns Description
Spring stiffness of vertical supports at exterior walls in kip/feet or kN/m (0.0)
Spring stiffness of vertical support(s) at interior wall(s) in kip/feet or kN/m (0.0)
` `
S P L D
1 5 10 14 15 17 18 22 23 25 26 30 31 33 40 50 60 70 80
CARD
ID
Uniform
Dead
Load
F4.2
Concentrated Dead Loads
Weight
F5.2
Pos
F3.2
Load No. 2 Load No. 3
Weight
F5.2
Pos
F3.2
Weight
F5.2
Pos
F3.2
Load No. 1
` `
S P R G
1 10 11 15 20 25 30 35 40 50 60 70 80
External springs Ko
(kip/ft or kN/m)
F15.0
Internal springs Ki
(kip/ft or kN/m)
F15.0
CARD
ID
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CULV5, Version 2.2 6 July, 2012
Culvert Data (CULV) Card
This card is used to input culvert data and is required for each culvert.
Columns Description
Number of boxes (barrels), from 1 to 4, (required)
Clear span in feet or meter (required)
Clear height in feet or meter (required)
Earth fill to top of top slab in feet or meter (0.0)
Floor support code, See Figure 1 - Floor Support Systems for diagrams of the different
systems. (Blank)
Blank full floor support with interior supports
X No floor with fixed end support
H No floor with hinged supports
Y Full floor support without interior supports
Z Full floor support with spring supports (requires SPRG command card).
Thickness of top slab in inches or millimeters (required)
Thickness of bottom slab in inches or millimeters (top slab thickness)
Thickness of external wall in inches or millimeters (required)
Thickness of interior wall in inches or millimeters (exterior wall thickness)
Live Load surcharge in feet or meter (2.0/0.610)
Maximum soil equivalent fluid pressure in lbs/ft3 or kg/m3 (40.0/640.72)
Minimum soil equivalent fluid pressure in lbs/ft3 or kg/m3 (20.0/320.36)
Water density in lbs/ft3 or kg/m3 (0.0/0.0)
Top haunches in inch or millimeter (0.0/0.0)
Bottom haunches in inch or millimeter (0.0/0.0)
Output component moments, shears, and axial loads (VDL, VLL, LDL, etc). 1 to output,
0 for no output (0)
No. Of Boxes LiveLoad Surcharge
I
C U L V
1 6 7 10 11 14 15 19 20 25 31 32 35 37 40 42 45 47 50 52 54 55 57 58 60 61 64 65 67 68 70 71 75 80
Haunch
Component
Output
I
CARD
ID
Top
F3 .0
Bot
F3 .0
Bottom
Slab
Thick
F4 .1
Ext Wall
Thick
F4 .1
Int Wall
Thick
F4 .1 F3 .2
Soil
Press
M ax
F3 .0
Soil
Press
M in
F3 .0
Clear
Height
F4 .3
Earth
Fill
F5.3
Floor
Support
Code
A
Clear
Span
F4 .3
Top
Slab
Thick
F4 .1
Water
Density
F4 .0
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CULV5, Version 2.2 7 July, 2012
DIAGRAMS
Figure 1 - Floor Support Systems
Figure 2 - Member Labeling Convention
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CULV5, Version 2.2 8 July, 2012
Document History
DOCUMENT HISTORY
Initials Date Description
TT 2000-APR Input Instructions prepared by programmer for release 1.70.
TT/TEB 2003-FEB-03 Transferred from programmer to end-user OPR for maintenance.
TEB 2003-DEC-01 Revised for version 1.71 release and called it an Input Guide.
AJ 2008-DEC-08
Revised support conditions shown for floor support codes H and Z; revised size of Figure 2; renamed to User Guide; Added Title Page; Added Table of Contents; Added Document History section; Revised styles.
TEB 2010-MAY-21 Updated to version 2.1. Updated headers and footers. Revised content and formatting.
TEB 2012-JUL-12 Updated to version 2.2. Updated headers and footers. Revised content and formatting of input cards.
USAGEINPUTHeader CardsCard 1 Job HeaderCard 2 Description HeaderCard 3 Problem (PROB) Header
Specification (SPEC) CardSpecial Loading (SPLD) CardSpring (SPRG) CardCulvert Data (CULV) Card
DIAGRAMSDocument History