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INTRODUCTION

 

1.1Introduction

Formerly pcaSlab and ADOSS, spSlab is a computer program for the analysis and design of reinforced concrete beams and slab floor systems. Two-way slab systems are analyzed using the Equivalent Frame Method. Beams and frames of up to 22 spans can be analyzed and designed. In addition to the design option spSlab has the capability of investigating existing beams and slab systems. spSlab includes provisions for slab band systems as well as punching shear check and deflection calculations using cracked or gross sections. For beams, moment redistribution as well as combined shear and torsion design are available. Material quantity take-offs are computed. In addition to the required area of reinforcing steel at the critical sections, spSlab provides a complete bar schedule that includes number of bars and bar sizes and lengths. spSlab checks the applicable provisions of the relevant code.

Formerly pcaBeam, spBeam is a limited version of spSlab. It includes all elements that apply to beams and one-way slab systems. Topics describing these elements are denoted with inset_0.jpg icon because they are included in both spSlab and spBeam. Two-way slab systems are available in spSlab only and topics related to two-way slab systems are denoted with inset_1.jpg icon.

1.2Program Features

ACI 318-14, ACI 318-11, ACI 318-08, ACI 318-05, ACI 318-02, ACI 318-99, CSA A23.3-14, CSA A23.3-04, and CSA A23.3-94

English and Metric (SI) units

Design and investigation of beams, one and two-way slabs including one-way joist sys­tems (standard and wide module) and two-way joist systems (waffle slabs)

Slab band system design and investigation for CSA A23.3-14/04

Flexure and shear design and investigation with live load reduction and patterning

Torsion design and investigation for beams/one-way slab systems

Longitudinal reinforcement for combined flexure, shear, and torsion per CSA A23.3-14/04

Automatic or manual moment distribution factors and strip widths

Moment redistribution for beams/one-way slab systems

Calculation of instantaneous deflections at three load levels; dead load, dead load plus sus­tained live load, and dead load plus live load

Calculation of incremental long-term deflections

Instantaneous and long-term design strip deflections for two-way systems

Analytical modeling of variable support stiffness in systems with rectangular, and circular supports

One and two-way (punching) shear investigation considering the effects of drop panels, column capitals, longitudinal beams, transverse beams, and slab bands.

Boundary conditions including vertical and rotational springs

Top and bottom bar details including development lengths and material quantities

Specialty design requirements including crack control, integrity reinforcing, and corner column checking

Frame solution results including tabulated column axial forces and moments

Mixed span types within one-way or two-way systems

Auto-input wizard with instantaneous data checking

Graphical display of geometry, loads, and results

Advanced view, print, display settings and options

Customizable detailed results report

Import input data from ADOSS v6.0x/7.0x, PCA-Beam, and pcaSlab

Detailed manual and online help

1.3Program Capacity

21 supports (22 spans including left and right cantilevers)

6 load cases

50 load combinations

999 partial dead loads per case

999 partial live loads per case

2 top bar layers (Design mode)

2 bottom bar layers (Design mode)

15 bar sets per span

1.4System Requirements

Any computer running Microsoft Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10 operating system is sufficient to run the spSlab and spBeam programs. For instructions on how to troubleshoot system specific installation and licensing issues, please refer to support pages on StructurePoint website at www.StructurePoint.org.

1.5Terms

The following terms are used throughout this manual. A brief explanation is given to help familiarize you with them.

Windows

refers to the Microsoft Windows environment as listed in System Requirements.

[ ]

indicates equivalent value expressed in metric unit or CSA code requirement corresponding ACI code requirement

Click on

means to position the cursor on top of a designated item or location and press and release the left-mouse button (unless instructed to use the right-mouse button).

Double-click on

means to position the cursor on top of a designated item or location and press and release the left-mouse button twice in quick succession.

Marquee select

means to depress the mouse button and continue to hold it down while moving the mouse. As you drag the mouse, a rectangle (known as a marquee) follows the cursor. Release the mouse button and the area inside the marquee is selected.

1.6Conventions

Various styles of text and layout have been used in this manual to help differentiate between different kinds of information. The styles and layout are explained below…

inset_2.jpg 

placed in a topic header means that the topic applies to both spSlab and spBeam

inset_3.jpg 

placed in a topic header means that the topic applies to spSlab only

Italic

indicates a glossary item, or emphasizes a given word or phrase.

Bold

All bold typeface makes reference to either a menu or a menu item command such as File or Save, or a tab such as General Information or Columns

Mono-space

indicates something you should enter with the keyboard. For example type “c:\*.txt”.

key + key

indicates a key combination. The plus sign indicates that you should press and hold the first key while pressing the second key, then release both keys. For example, “ALT + F” indicates that you should press the “ALT” key and hold it while you press the “F” key. Then release both keys.

Small Caps

Indicates the name of an object such as a dialog box or a dialog box component. For example, the Open dialog box or the Cancel or Modify buttons.

1.7Installing, Purchasing and Licensing spSlab/spBeam

To purchase StructurePoint software please visit StructurePoint.org/buy.asp

To download and install a trial version of StructurePoint software please visit StructurePoint.org/download-trial.asp

For setup, installation, and licensing please use the StructurePoint Setup & Licensing Guide