DCALC,DesignCalcs,Seismic Design,Bridge Design Software,Structural Dynamics,Structural Engineering
Calculation Descriptions
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DCALC programs are composed of the following groups:

(To download a PDF file of an example calculation's output, click on underlined calculation titles)

ABUTMENT :Designs a cast-in-place concrete bridge abutment on spread footing or pile footing. (Produces DesignCAD details)
BEARINGS :Designs elastomeric expansion, low profile steel fixed and steel pot bearings per the Illinois DOT Bridge Manual.(Produces DesignCAD details)
BRIJBEAM :Design bridge beams or plate girders per AASHTO, by either service load, load factor or LRFD design methods.(Produces DesignCAD details)
CBRIDGE :Calculates moments, shears and reactions for composite and non-composite bridges with variable I, 1 to 6 spans. Service, load factor and LRFD.
CONDIAPH :Computes moments in continuity diaphragms used in prestressed concrete beam bridges, using a numerical time loss analysis based on PCA methodology.
DCBRIDGE :Collects and computes bridge geometry information, used by the  bridge design programs. Optional interface with DesignCAD to collect geometry information.(Produces DesignCAD details)
DECK :Designs transverse deck reinforcement per LRFD code using equivalent slab strip method.
GIRDER :Computes section properties and stresses for steel beams and plate girders.
INFLUENC :Computes influence line coefficients for bridges from 1 to 6 spans.(Produces DesignCAD details)
INTEGRAL :Designs an integral abutment, analyzing the abutment as a pile bent.
LOADER :Computes beam loads for the design of steel and prestressed concrete highway bridge beams/girders.
PCBRIDGE :Designs a precast prestressed concrete girder, simple and continuous spans.(Produces DesignCAD details)
PTBRIDGE : Designs cast-in-place post-tensioned concrete bridges, 1 to 6 spans.
PIER :Designs a standard highway bridge pier with 1 to 10 columns, spread footing or pile footing.(Produces DesignCAD details)
SCUPPER:Computes bridge scupper placement, per IDOT design methodology.
SEALCOAT:Calculates the required thickness of seal coat concrete for watertight cofferdams in water, per IDOT.
SPLICE :Designs a bolted field splice for steel beams and girders in non-composite regions.(Produces DesignCAD details)
SUBLOADS:Computes the loads from a bridge superstructure to be applied to a bridge substructure (pier or abutment)
SEMI-INT:Designs a semi-integral abutment, analyzing the abutment as a pile bent.
VERIFY:For verification of moments computed in CBRIDGE. Shows loading positions graphically. Makes a FRAME input file for checking purposes.

BEAMELEV :Computes top of beam elevations for fabrication, camber diagrams and bearing seat elevations - steel and PPC bms.(Produces DesignCAD details)
DECKELEV :Computes 10 foot bridge deck elevations adjusted for beam deflections, required for setting concrete forms.(Produces DesignCAD details)
ELEVS :Computes elevations for any point on a vertical curve and cross-section.
GEOMETRY :Solves geometry problems, for determining or checking dimensions shown in plans or shop drawings. (Produces DesignCAD details)
PARABOLA :Fits a parabola thru a known given points and slopes, to be used for calculating vertical curves.

2D-TO-3D :An interface with DesignCAD, allowing the user to create a 3D document from a 2D document.
DC-DCALC :A detail production tool to be used with DesignCAD. Automatically generates routine structural details.
DRAWLIST :A drawing list manager. Maintains records of CAD files, quality control/checking and job progress.

BEAMBRG :Checks the end bearing capacity of a concrete beam and design reinforcement if necessary, per PCI and ACI.
COLUMN :Computes column interaction diagrams for reinforced concrete columns, biaxial loading.(Produces DesignCAD details)
CONCBM :Designs a concrete beam with constant or variable section for a variety of spans arrangements, per the ACI 318 code.
CORBEL :Designs a concrete bracket or corbel, using the PCI Design Handbook procedure, per the ACI 318 code.
DAPPEDBM :Designs a concrete beam with a dapped end, using the PCI Design Handbook procedure, per the ACI 318 code.
SPANDREL :Designs a concrete beam for a given shear, torsion and moment, with or without post-tensioning, per ACI 318-95.

PCBEAM :Designs prestressed concrete rectangular, L-beam, inverted-T, box, hollow core, single and double-T beams, per ACI 318-95.
PTBEAM :Designs post-tensioned concrete framed beams and one-way slabs for buildings, per ACI 318-95.
PTCRACK :Computes the stress in mild reinforcement in a partially post-tensioned or prestressed beam.

BASEPL :Designs a steel base plate for axial load, uplift or moment, or analyzes a base plate for biaxial moment (AISC ASD/LRFD)
BRACKET :Designs a bolted or welded steel bracket supporting a concentrated load, per AISC ASD or LRFD specifications.
BURSPIPE: Computes stresses in buried steel pipe using Guidelines of the American Lifelines Alliance.
HAUNTCH :Designs a steel tube or wide flange beam embedded in a concrete column or wall, acting as a steel hauntch.
STLBEAM :Designs a steel wide flange beam or plate girder, composite or non-composite, per AISC ASD or LRFD specifications.
STLBMCOL :Steel beam column design, using AISC, for W, S, H shapes, double angles, pipes, tubes and WT shapes.
STORSION :Analyzes a steel beams for combined bending and torsion, per AISC ASD specifications. Typically for lintel beams.
WEBOPENG :Checks strength of a steel beam with a web opening, using AISC Design Guidelines, for ASD or LRFD.

BEAM :Computes shears, moments and deflections for a variety of spans, for a beam with constant or variable I.
DYNAMIC :Computes the natural frequencies and modal shapes of plane frames, space frames and plane grids, using the structure modeled in the FRAME program.
FRAME :Plane frame, space frame and plane grid structural analysis using the Finite Element Stiffness Method.
GENCABLE :Non-linear analysis of general cable structures, comprised of tension cables and compression rods.
ISOCABLE :Non-linear analysis of isolated cable supporting weights, used in catenary and suspension structures.
MODAL :Computes the dynamic response of a multi-degree-of-freedom system to forced excitation or support movement.
OSCILATE : Dynamic analysis of a simple oscillator subject to either sinusoidal or general excitations.
PLATE :Computes moments and reactions in rectangular plates using the Finite Element Stiffness Method.
SECTPROP:Computes section properties of complex shapes, comprised of any combination of polygons, circles, voids and steel shapes.
STIFCABL :Non-linear analysis of stiffened cable structure, such as a suspension bridge.
SURFLOAD :Computes Boussinesq stresses caused on surface loadings on an semi-infinite plate.
TORSION : Computes torsional stiffness properties using a numerical approach.
UNLINEAR:Non-linear frame analysis using Newton-Raphson method. Uses model generated in FRAME program. Performs an interative analysis of structure that takes into account changes in geometry and plastic hinging.
WINDTUN1 : 2D analysis of wind velocities and pressures on a structure based on inviscous steady state flow.
WINDTUN2 : 2D simulation of wind flow pattern based on viscous unsteady flow using vorticity-stream function formulation.

BEARPRES :Computes the ultimate bearing pressure under a spread footing or round shaft using a numerical procedure.
BIAXIAL :Calculates pressure under a spread footing for biaxial loading, accounting for uplift.
BORING :A program for entering soil boring log information into a database, to be used by other DCALC substructure design programs. (Produces DesignCAD details)
EXCAV :Designs braced excavations, consisting of either steel sheeting, soldier piling or wood boards.
GEOWALL:Designs a temporary geotextile wall using AASHTO LRFD and Illinois DOT methodology.
GLOBSTAB :Computes factor of safety for global rotational failure for an embankment, wall or abutment using the method of slices.(Produces DesignCAD details)
ISOFOOT :Designs an isolated footing for buildings, with or without tiebacks.
LATPILE :Compute moments, shear, pressures and displacements for a laterally loaded pile.
MSEWALL :Computes overturning and sliding stability, and bearing pressure for a mechanically stabilized earth wall.
PILE: Computes the capacity of a driven pile using the Modified IDOT Static Method of Estimating Pile Length.
PILEBUCL: Analyzes an end bearing pile for lateral stability using a second-order iterative procedure.
PILESETL: Computes the settlement of a single pile or pile group due to an axial load and downdrag.
PILEWALL :Designs a permanent or temporary soldier pile wall with or without tiebacks, in sand, clay or rock.
RETWALL :Designs a cast-in-place concrete retaining wall on spread footing or pile footing, level or sloped backfill.(Produces DesignCAD details)
SEEPAGE :Seepage flow net computation using an iterative finite difference method, for four types of structures.
SETTLE :Computes settlement of footings, caissons and embankments using a numerical integration solution of Boussinesq's equation.
SHORTPIL :Designs a laterally loaded short piles using Broms method. For small foundations, such as for lights and signals.
SHTPILE :Designs sheet piling, with or without tie-backs. Uses two methods of design - classical and FEM.
TIEWALL : Designs a permanent or temporary soldier pile wall with grouted ground anchors in sand or clay (for walls in cuts).
TRIALWEG :Computes the lateral loads on retaining walls and sheeting using the trial wedge method.

MASONRY :Designs a brick or block masonry cantilever or braced masonry wall using UBC specification.


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