EN 12811-1 PDF

Scaffolding checks EN esasd. Highlights Full integration in the main graphical user interface Integrates complete modelling, analysis and drawings Detailed modelling of all scaffolding parts Semi-automatic determination of buckling lengths Specific checks according to EN and EN Modelling SCIA Scaffolding offers different approaches for modelling of different types of scaffold. The user chooses what best meets their current needs. Scaffolding types Steel as well as aluminium materials are available for input and analysis. Their main advantage is their versatility. Modular systems are defined as systems in which the transoms and standards are separate components.

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Scaffolding checks EN esasd. Highlights Full integration in the main graphical user interface Integrates complete modelling, analysis and drawings Detailed modelling of all scaffolding parts Semi-automatic determination of buckling lengths Specific checks according to EN and EN Modelling SCIA Scaffolding offers different approaches for modelling of different types of scaffold. The user chooses what best meets their current needs.

Scaffolding types Steel as well as aluminium materials are available for input and analysis. Their main advantage is their versatility. Modular systems are defined as systems in which the transoms and standards are separate components. The standards provide facilities at pre- defined modular intervals for the connection of the other scaffold components. One of the main advantages is a short erection time. Frame systems are a special type of modular systems in which standards and transoms are already welded together as fixed frames.

Modelling methods Direct Scaffold Modelling All standard modelling and manipulation copy, move, mirror, etc. In the case a 2D or 3D CAD model of the scaffold is available, this is directly imported as an analysis model. Even an architectural model is imported, which allows the user to model the scaffold next to the existing building.

In addition, any pre-prepared User Blocks, i. Scaffolding Templates Engineers who deal with the design of scaffolds regularly will definitely welcome the possibility to prepare tailor-made templates for all types of scaffolds they have to handle. The advantage of using templates is that all common data e.

Analysis The analysis of the scaffold includes proper defi- nition of loads and combinations, calculation and design in compliance with the scaffolding-related code. Loading According to EN a scaffold should be designed for two specific conditions: In Service: characterized by a high working load and only a minor wind loading.

Out of Service: characterized by an extreme wind loading and a small percentage of the working load. Templates save a lot of effort as they may have predefined all required load cases and combinations.

Load Generators enable the user to define the loading plane and the program automatically distributes the loading on all members within that plane. This is for example used for generation of wind loading on the scaffold. SCIA Engineer uses a stability analysis to determine the buckling shapes of the scaffold, which in turn are used as imperfections for the full second order analysis. Other calculation features are used for handling of various specifics of scaffold structures: non-linear functions for coupler stiffness, friction supports for base jacks, pressure-only supports for abutments, gap elements for margins between the pen and hole, etc.

Design: limit states In the ultimate limit state, the scaffold members are checked according to the capacity check defined in EN In addition to the specific scaffolding checks, full design and check of the structure according to EN is also available for those scaffolds which do not meet the EN prerequisites.

Moreover, users can evaluate deformations of the scaffold and even perform a check on the relative deformations. This is particularly important for ledgers that support floor boards. Scaffolding components SCIA Scaffolding allows for an accurate modelling of different scaffolding components including their appropriate specifics. Diagonals are typically attached with an eccentricity due to the geometry of the attachment between the standards and the diagonals.

In addition to the eccentricity, a special behaviour of diagonals in modular systems is that they mostly have a small gap along their length, caused by a slight margin between the pen and hole. If specific test results for the diagonals of modular systems are available, the stiffness derived from the tests is accounted for using a translation spring.

SCIA Scaffolding integrates an extensive library of couplers which contains the different types given in Annex C to EN including their stiffness.

The user can also add their own couplers in this open library. Scaffolding structures typically have two types of floor systems: metal boards or wooden planks. The metal floor boards are accounted for in the stiffness of the analysis model. If wooden planks are used, however, the stiffness of the planks cannot be accounted for since the planks are put loose on the transoms. In this case, the planks are modelled as an extra load. Base jacks at the bottom of the scaffold feature specific behaviour.

In most cases, the base jacks are not fixed to the ground. Moreover, the horizontal resistance is purely dependent on friction.

This is modelled using friction supports. Drawings A separate module [see esadt. The generated images can be edited, combined with other drawings and inserted in a paper space gallery. All drawings remain connected to the original model, which means that they are automatically regenerated after any modification of the model.

Code checks Input of initial deformation of structures for scaffolding users, together with member check DIN part 1 and connection or scaffold coupler checks for scaffolding structures according to EN Extensions to EN Steel Code Check according to the Scaffolding code EN The Eurocode steel code check has been extended for the design of scaffolding projects.

Additions have been made for: Checking tube members art. The non-linear hinges are selected from a pre- defined user library list in SCIA Engineer Checking resistance values against the design forces Annex C of EN and the combination of actions art. This library provides the following user-selectable items: Right-angle coupler.

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BS EN 12811-1:2003

Daijinn This document sets out performance requirements for working scaffolds. A separate module [see esadt. The metal floor boards are accounted for in the stiffness of the analysis model. The user chooses what best meets their current needs. The user can also add their own couplers in this en library.

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Product Details BS EN is a European Standard that specifies performance requirements and methods of structural and general design for access and working scaffolds. Requirements given are for scaffold structures that rely on the adjacent structures for stability. In general these requirements also apply to other types of working scaffolds. The purpose of a working scaffold is to provide a safe place of work with safe access suitable for the work being done. This document sets out performance requirements for working scaffolds.

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SN EN 12811-1:2003-12;SIA 222.200

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