Reinforced Concrete Column Design & Analysis

Save the zipped file to your local hard drive, unzip it and run setup.exe. To unzip the file you will need Winzip www.winzip.com. You will need to contact us by phone or email to obtain a time-limited software key to try the program on a trail basis. If you are a university student or faculty member contact Yang Thao to receive an educational license.

WinRECOL Features In v5.0.5 LRFD

Windows Graphical User Interface (GUI)
Analyze, Design and Check Columns
AASHTO LFD/LRFD or Caltrans LFD/LRFD Design Criteria available
Ultimate Strength Theory
English or Metric Capability for Input and Output
Arbitray Symmetrical Shapes, Standard Cross Sections and Voided Cross Sections
Arbitrary or Predefined Rebar Patterns
Interaction Diagram Plots
Moment Magnification for Slenderness
Spiral Reinforcement for Plastic Hinging
VERSION UPDATED: Added load modifier factors fro ductility, redundance & importance(AASHTO 1.3.2.1)
VERSION UPDATED: Changed Phi to .90 for 'ALRFD' extreme event I(seismic) (AASHTO 5.10.11.4.1b)
VERSION UPDATED: LRFD(Caltrans & AASHTO) All zones. LRFD 3.10.9.4.3d, only divided elastic EQ moments by response modifaction facor, R. not axial load.
VERSION UPDATED: Added calculation of plastic shear for each plastic moment direction for WinFAD input file(*.fad)
VERSION UPDATED: ALRFD Str-II include PL & BR, CLRFD Str-II DO NOT include PL & BR
VERSION UPDATED: CLRFD CR & SH always max=1.50 & min=.90 for Str-Iv

WinRECOL analyzes, designs or checks a reinforced concrete column. The program has the option to choose one of the following design specifications:

CLFD = Caltrans Bridge Design Specification LFD, September 2004, with Revisions

ALFD = AASHTO Bridge Design Specification LFD, Sixteenth, Edition 1996, 1998 Interims and Division I-A Sesimic Design Article

CLRFD = AASHTO LRFD Bridge Design Specification, Third, Edition 2004, 2006 Interims with Caltrans Amendments,(Blue Sheets v0.06)

ALRFD = AASHTO LRFD Bridge Design Specification, Thrid, Edition 2004, 2006 Interims

WinRECOL is based upon the theory of ultimate strength and uses standard or arbitrarily described cross sections with predefined or arbitrary rebar patterns to perform three different solution types.

COLUMN SHAPES may be specified by using predefined, standard geometrical shapes commonly used for bridges, or by specifying coordinates for an arbitrarily shaped symmetrical cross section. Voids may also be included when coordinates are used to describe the cross section.

REBAR PATTERNS are specified by using predefined rebar configurations commonly used for reinforced concrete columns or by specifying the coordinates for each bar. Coordinates for the rebar pattern are generated automatically from a minimum amount of input data.

SOLUTION TYPES in the program include: 1) "Analyze", 2) "Design", and 3) "Check". "Analyze" is used to compute the coordinates of an interaction surface in the first quadrant for planes in 15 degree increments. "Design" is used to determine the amount of reinforcing steel area required for the selected Design Specification (AASHTO LFD/LRFD or Caltrans LFD/LRFD). "Check" is used to check the adequacy of the designed column for the Design Specification selected and to perform a plastic hinging analysis.

MOMENT MAGNIFICATION for slenderness is determined in the analysis via the AASHTO or Caltrans moment magnification procedure specified in Article 8.16.5..

COLUMN SPIRAL REINFORCEMENT required for column confinement, minimum reinforcement and shear due to plastic hinging is output in the check mode.

GRAPHICAL DISPLAY of the column cross section, along with Moment Interaction diagrams at 15 degree intervals can be displayed after an analysis or check has been performed.