Powered by the Equivalent Frame Method of analysis and design per latest American (ACI 318-14) and Canadian (CSA A23.3-14),
spSlab v5.50 is widely used for analysis, design, and investigation of two-way slab systems (including waffle and slab bands),
beams, and one-way slab systems (including standard and wide module joist systems).
spSlab, formerly pcaSlab and ADOSS, is used for new designs or investigation of existing structural members subject to flexure,
shear, and torsion (equilibrium, or compatibility). With capacity to integrate up to 20 spans and two cantilevers of a wide variety of
floor system types, spSlab is equipped to provide cost-effective, accurate, and fast solutions to engineering challenges. spSlab
calculates one-way (beam) and two-way (punching) shear around columns and drop panels, immediate and long term deflection.
Using the moment redistribution feature reduces negative moments by up to 20% and reduces reinforcement congestions over the
supports to ultimately save in both material and labor.
spSlab also incorporates torsion into shear design and investigation of beam systems. Shear capacity including torsion is
represented in terms of required and provided area of transverse and longitudinal reinforcement.
User Interface
New spResults Module
New spReporter Module
Reinforced Concrete Floor Systems
Two-way Slab Systems
Flat Plate
nonprestressed two-way slabs without interior beams without drop panels
without edge beams / without column capitals
with edge beams / without column capitals
without edge beams / with column capitals
with edge beams / with column capitals
Flat Slab
nonprestressed two-way slabs without interior beams with drop panels
without edge beams / without column capitals
with edge beams / without column capitals
without edge beams / with column capitals
with edge beams / with column capitals
Slab Bands
nonprestressed two-way slabs without interior beams with slab bands (Canadian Standard only)
equivalent frame in the direction of slab band (longitudinal band) without column capital
equivalent frame in the direction perpendicular to slab band (transverse band) without column capital
equivalent frame in the direction of slab band (longitudinal band) with column capital
equivalent frame in the direction perpendicular to slab band (transverse band) with column capital
Slab on Beams
nonprestressed two-way slabs with beams spanning between supports on all sides
spSlab utilizes the Equivalent Frame Method for the analysis and design of two-way slab systems, i.e. a slab system consisting of approximately rectangular panels with the ratio of longer-to-shorter span within a panel not exceeding 2.0, per American (ACI 318) and Canadian (CSA A23.3) concrete codes.
Two-way (punching) Shear
Two-way (punching) shear check considering the effects of columns (rectangular, round), drop panels, column capitals, longitudinal beams, transverse beams, and slab bands can be performed.
Punching Shear Check Around Columns
Punching Shear Check Around Drop Panels
One-way (beam) Shear Calculations
One-way (beam) shear check considering the effects of drop panels, column capitals, longitudinal beams, transverse beams, and slab bands can be performed.
Slab Shear Capacity Check by Considering Drop Panel Contribution
To the top
Results Output
Graphical Output
Reinforcement Bars with Development Lengths
Moment and Shear Diagrams
Moment Capacity vs Moment Demand Envelope View for beam, column and middle strips
Shear Capacity vs Shear Demand Envelope View for beam, column and middle strips
Deflection View including dead, sustained, live, and total deflections
Loading Diagram
spResults
spReporter
To the top
Advanced Features
Equilibrium-Torsion (ACI & CSA)
Equilibrium-Torsion (CSA)
To the top
Additional 20% discount available for multi-product bundle purchase spMats, spBeam, spColumn, spSlab, spWall, spFrame
(formerly pcaMats, pcaBeam, pcaColumn, pcaSlab, pcaWall, pcaFrame). Email us at info@StructurePoint.org for more information on pricing and licensing.
