prokon general & other · prokon general & other ... in general column design, and taking...

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PROKON GENERAL& OTHER

Prokon Software Consultants (Pty) Ltd. +27 12 346 2231 | [email protected] | www.prokon.com10 Guild House, 239 Bronkhorst Street, Nieuw Muckleneuk, Pretoria, South Africa


Other: Timber, Masonry & Padds

Prokon General:Prosec, Wind Pressure Analysis & Gutter Size Design

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Timber Member Design

Masonry Design

Masonry Wall Design

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Padds

Prosec

Wind Pressure Analysis

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Gutter Size Design P 11

PROKON GENERAL & OTHER

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The timber member design module, Timsec, is used to check and optimise timber members subjected to a combination of axial and biaxial bending stresses, e.g. beams, frames and trusses. The timber member design module can design timber and glued laminated timber load bearing members. Timsec currently has the following limitations:

• Only rectangular sections bent about their major or minor axes can be designed.• Design of tapered and haunched sections is not supported.

The program primarily acts as a post-processor for the Frame Analysis and Sumo modules. It also has an interactive mode for the quick design or checking of individual members without needing to perform an analysis in Frame or Sumo first.

The output contains the detailed calculations or all members and a graphic display of moments and axial forces, with the option of sending certain members and their calculations to a Calcsheet.

TIMBER MEMBER DESIGN Optimise timber members subjected to a combination of axial & bi-axial bending stresses

Key features:

• Design different timber members.• Links with Sumo and Frame Analysis.• Includes interactive mode.

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MASONRY DESIGN Masonry section and wall design

The Prokon suite currently includes two modules for the design of masonry sections and walls. The masonry section design module, MasSec, is mainly used for the design of members such as lintels and masonry that span large openings in walls. MasWall, on the other hand is ideally suited for the design of wall panels and bearing walls.

Code of practice support is currently limited to SABS 0164-1992. Characteristic compression strengths for masonry units are calculated based on unit geometry, nominal strengths and tables in the abovementioned code of practice.

The design output provides a tabular as well as a diagrammatic summary of the design. All the masonry modules provide a detailed Calcsheet on design methodology and results, i.e. a complete record of the design is generated automatically generated.The masonry design modules are standalone programs, i.e. they do not post-process results from any of the other analysis modules.

Masonry Section Design, design members that span large openings in walls.The masonry section design module verifies the resistance of a reinforced masonry beam at a critical section. It is assumed that the loads imposed on the beam causes uniaxial bending and a shear force only.

The module supports the following beam types:

• Single leaf: Single leaf of masonry.• Collar jointed: Double leaf of masonry, where the small void between the two leaves of masonry is filled with

mortar or concrete.• Grouted cavity: Double leaf of masonry, where the larger void between the two leaves is filled with concrete with

strength of at least fcu.

The following limitations apply:

• No direct support for composite action, e.g. masonry beam and prestressed a lintel.• No support for doubly reinforced sections.

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The masonry wall design module, MasWall, determines the resistance of an unreinforced masonry wall, subjected to one of the following loads:• In plane axial loading (Bearing walls).• Out of plane loading, causing biaxial plate bending (Wall panels).

The module is standalone, i.e. it does not post process results from any of the analysis modules.The module supports the following beam types:

• SINGLE LEAF:Single leaf of masonry.

• COLLAR JOINTED:Double leaf of masonry, where the small void between the two leaves of masonry is filled with mortar or con-crete.

• GROUTED CAVITY:Double leaf of masonry, where the larger void between the two leaves is filled with concrete with strength of atleast fk.

MASONRY WALL DESIGN Design unreinforced masonry wall

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Key features:

• 3 Different beam types supported.• 3D representation.• Detailed calculation output.

Possible values for the horizontal restraint are:• Simple: No rotational fixity at the top of the wall.• Enhanced: Partial rotational fixity at the top of the wall.

The following limitations apply:• No direct support for composite action, e.g. masonry beam and prestressed a lintel.• No support for doubly reinforced sections.

The module is a standalone program, i.e. it does not post-process results from any of the other analysis modules.

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PADDS (FULL-FEATURED CAD PROGRAM)Concrete Reinforcement Detailing and Scheduling

The Prokon suite includes a full-featured CAD program, Padds, designed specifically for structural engineers. New users are usually pleasantly surprised by how intuitive and easy to use it is.Without the bloat of modern CAD systems, all that remains is a lean and powerful tool for drawing and structural detailing.

The free PaddView drawing viewer compliments Padds even further. PaddView is a simple utility for viewing and printing Padds drawings.

Padds - Parametric Drawing and Detailing System

Concrete detailing, general purpose CAD and model generation for PROKON analysis modules. All the basic CAD procedures are available to create or edit drawings. Elements like lines, arcs, circles, splines, text, hatch, dimensions, blocks, and construction lines are all supported with a host of editing functions. Using an innovative approach to layers and scales, laying out details on a drawing sheet is very intuitive.

The program has a large number of reinforcement detailing functions. You can work with reinforcement bending schedules created with the concrete design modules, or create drawings and schedules from scratch.

It supports reinforcement shape codes defined in the following codes of practice:

• BS 4466 - 1989• BS 8666 - 2005• SANS 282 – 2004

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Padds’ powerful macro and scripting functionality (based on the Pascal programming language), allows you to develop your own extensions. Included macro functions are a complete staircase detailing function, and a function to combine multiple bending schedules (A4 of letter size) onto a larger sheet.

Padds also links with Prokon’s Section Database to enable you to draw standard profiles in section, elevation or plan. Creating welding details is also easy given the included library of welding symbols. These features gears Padds for basic detailing of structural steel.

A full library of commonly used structural and architectural entities is available and you can expand this repository as needed.

Padds has the ability to generate geometrical input for other Prokon analysis modules. Examples include drawing shapes for section property calculation in Prosec or design in General Column Design, and taking complex slab geometries and generating finite element meshes for Frame Analysis. You can import drawings from and export to a variety of formats. Supported formats include AutoCAD DWG, DXF and Caddie CEX.

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PROSEC(SECTION PROPERTIES CALCULATION)Calculate cross-sectional properties for custom shapes

• BASIC AND BENDING SECTION PROPERTIES:cross-sectional area, location of centroid and orientation of major and minor axes, moments of inertia, elasticand plastic section moduli, radii of gyration, outside perimeter length, void ratio and section efficiency factor.

• TORSIONAL SECTION PROPERTIES:normalised shear stress, effective shear area, location of shear centre, St. Venant torsional constant, mono-symmetry constant, torsional modulus and warping torsion constant.

You can import cross-sections from the section database or use Padds to sketch the section and then export the sketch to Prosec. The section database is fully compatible with Prosec, so custom sections created in Prosec can be saved for use in Frame, Sumo, a selection of the design modules and even third party applications such as Autodesk Revit.

The calculation of cross-sectional properties of general shapes, torsional properties in particular, often involve the solution of equations that require numerical approaches.

Prosec uses the finite difference method to calculate over 30 section properties, which include:

Key features:

• Large number of properties for any custom geometry.• CAD data from Padds.• Created sections are compatible with a variety of

software applications.• Free on-line version.

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WIND PRESSURE ANALYSIS Compute free stream velocity pressures

Key features:

• Simple input.• Double-pitched and mono-pitched roofs.• Integrates with Frame.

Calculation of wind loading based on codes of practice is a laborious process involving table look-up and tedious interpolations.

Wind eliminates the tedium of wind loading by computing the free stream velocity pressures, including frictional effects due to wind, on building structures based on a few simple inputs. Three-dimensional depictions of input and output illustrate the wind direction and pressure vectors, thus reducing the effort of transferring wind loading to the correct regions of an analysis model. Currently cladded, mono- and double-pitched buildings are supported.

Frame integrates with Wind via the portal and trussed frame wizards. These wizards export building geometry to Wind and generate the required loading in the final model automatically, thereby simplifying the process and avoiding errors.

The module currently supports the following codes of practice:• SANS 10160-3: 2011• AS/NZS 1170.2: 2011

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GUTTER SIZE DESIGN Analyse gutters & downpipes

Key features:

• Sizes gutters and downpipes.• Select 2 min. M5 rainfall intensities for various regions in the United Kingdom and South Africa.• Clear results visualisation.

Roof drainage is an often-overlooked part of building design. The low stiffness of steel structures for example, makes them particularly vulnerable to roof ponding.

Ponding can be avoided with proper drainage design and Gutter is the ideal design tool for this task. Using the requirements of BS EN 12056-3 - 2000, the module design gutters and down pipes to drain roof of building structures for specified rainfall intensities and design durations.

The rainfall intensities can optionally be picked from a list of regions in the United Kingdom and South Africa. Gutter offers a 3D visualisation of the roof segment under analysis, and a roof and gutter-draining diagram eases result interpretation.

The outflow characteristics of each gutter segment, each down pipe is summarised in table form, and detailed design calculations are provided.

The module currently supports the following codes of practice:• BS EN 12056-3 – 2000

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