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ServicesBuilding in steelRegulations and certificationAssembly guideTechnical libraryReferences

LGS fundamentals and materials

Overview What LGS and lightweight construction are Cold-formed and hot-rolled steel Steel grades for framing Yield strength and thickness go together Zinc coating: what Z275 means Corrosion and service life Material pairing and galvanic corrosion What cold forming does to steel Section types and what they are for Section depth and thickness Why it is not drywall profile Coil, tolerances and material verification How steel behaves with temperature Dimensional stability and moisture Steel and timber framing Steel as a circular material Glossary Where the technology came from

Manufacturing and machines

Overview Roll forming: how coil becomes a section What an LGS production line does Cutting, punching, marking The machine does not get a drawing The logic of machine program formats The machine-specific template What to know about a machine Machine types in general Site-erected frame, panel, module Panel size and transport Manufacturing tolerances on site Marking and erection logic Cutting optimisation and waste Trial production In-process quality control Capacity and lead time The role of LGS design software

FRAMECAD system

Overview The FRAMECAD machine range Auto-gauging: mixed thicknesses Tools and operations on FRAMECAD Steelwise: detailing and engineering Which codes FRAMECAD calculates to What the system exports: RFY, CSV, IFC The FRAMECAD system and the BIM environment Design freedom in the FRAMECAD system Where the system ties you in Quality control at the FRAMECAD machine Nexa and Factory2 The FRAMECAD system in Hungarian practice

LGS structural design

Overview Why thin-walled design differs Local buckling The effective cross-section Distortional buckling Flexural-torsional buckling Restraint and restraint points The role of EN 1993-1-3 Design by testing The wall panel as a structure Load-bearing and non-load-bearing walls Bracing with steel straps Sheathing diaphragm Designing a shear wall Floor joists Floor vibration and serviceability Trusses Openings and lintels Built-up (boxed) sections Web holes and service openings Self-drilling screw connections Clinching, riveting and welding thin sheet Hold-down and uplift anchorage Fixing the bottom track to the substrate Load path continuity Deflection limits What structural software is for

Actions and Eurocode

Overview What the Eurocodes consist of The national annex Basis of design: EN 1990 Ultimate and serviceability limit states Partial factors and load combinations Self-weight and imposed load Snow load in Hungary Wind load and terrain category Seismic design in the Hungarian context Accidental actions and robustness Design working life Serviceability criteria Designing for projects abroad The second-generation Eurocodes

Hot-rolled steel and mixed structures

Overview Hot-rolled sections: the basics When HRS is needed alongside LGS Welded and bolted connections EN 1090 and execution classes Weld quality and inspection Hot-dip galvanising Surface protection systems Composite steel-concrete floors Where steel meets concrete The logic of portal frame halls Long-span solutions Rooftop additions in light gauge steel

Building physics and build-ups

Overview The steel thermal bridge Ways of breaking a thermal bridge Continuous external insulation Calculating the U-value of a steel frame Insulation materials in the frame The principle of vapour control Airtightness and the blower door The service cavity Condensation risk check Wind barrier and breather membranes Façade build-ups Organic and absorbent materials in the wall Sound insulation basics Decoupling and resilient fixing Party walls Impact sound insulation Floor build-ups: dry and wet Summer overheating and thermal mass Mould risk Energy performance requirements in Hungary Nearly zero-energy buildings Energy performance certificate Comparing wall thicknesses Board materials: what belongs where

Foundations and geotechnics

Overview Foundation options for a light building The ground investigation report Geotechnical categories The logic of EN 1997 Strip footings Raft slab Pads and ground beams The principle of ground screws The limits of ground screws Load testing and verification Frost depth and frost heave Slab edge: thermal bridge and insulation Protection against ground moisture Radon protection Resisting uplift in light structures Setting out and foundation tolerances

Applications and operation

Overview What light gauge steel is really good for What it is not good for Residential buildings Non-residential buildings Renovation and extension Erection sequence Common site errors Inspection points What you can hang on the wall Later alterations Maintenance and service life Deconstruction and recycling EPD and life cycle assessment Financing and insurance

Fire safety and fire resistance

Overview What REI means and what it applies to Fire classification: EN 13501 Reaction to fire classes: from A1 to F Section factor and heating Intumescent coatings on thin sections Fire protective boards as a system Fire resistance by calculation Fire simulation as verification The Hungarian fire regulation Lightweight technology in the fire code Fire risk classification Fire compartmentation: why and where Fire spread on the facade Fire stopping of penetrations Cavity barriers Status of the fire safety guidelines Fire characteristics of structures Fire safety documentation How connections behave in fire Fire questions around insulation materials

Construction products and certification

Overview What counts as a construction product The declaration of performance What the CE marking verifies Harmonised standards NMÉ: the national technical assessment ETA and EAD: the European route Technical assessment bodies The new construction products regulation DoPC and the digital product passport The concept of a construction kit When no system document is required How to read a declaration of performance Product and system certification Specifying and installing a product

Building procedure and design stages

Overview The legal framework of building Permit or simple notification Simple notification The building permit procedure Authority systems The role of the OTÉK The local building code Design stages Concept design and project cost The content of the permit design The content of the detailed design Shop drawings: who is responsible Designer qualifications Designer liability and indemnity The design checker The responsible technical manager The construction log Handover documentation Authority inspection on site The legal side of a foreign project

General design and BIM

Overview What general design is Design disciplines Responsibility between disciplines The design brief Site data, survey and setting out Utility connections Surveying an existing building Coordination between disciplines The design programme Cost estimating by the designer BIM basics Levels of development (LOD)IFC and data exchange Clash detection Model-based collaboration Structural and discipline software Drawings or model as the deliverable

Service: general design

Overview Input data: what it takes to start Needs assessment Team assembly Do I need my own architect?The four stages Why the concept decides the cost The permit package The simple notification package Detailed design and BIM Taking part in the design process Clash detection in practice Supervision and construction management What we hand over at the end

Service: structural design

Overview Input data from the architect What happens if the input is incomplete The structural part of the permit design The structural detailed design Steel shop drawings What we work in: steel, LGS, timber Material optimisation Structural expert opinion Working with the other disciplines When a design checker is needed What we hand over

Service: LGS shop design

Overview Input data: the narrow criteria The three steps When the design exists but not for steel Machine survey The machine program: what we hand over Machine independence in practice Trial production Optional structural note Our build-up guidelines What we hand over We design, we do not manufacture

Service: choosing a service

Overview The service first, the price after What happens when you write to us The fastest route: send everything How we price What you can estimate yourself Programme: how long a design takes What we do not take on Where we work Qualification, signature, liability Confidentiality and uploaded drawings When the brief changes mid-way

Service: plan review

Overview This is not a design check Risk ranking What comes after the review

International examples

International case studies

ServicesBuilding in steelRegulations and certificationAssembly guideTechnical libraryReferences

Overview
LGS fundamentals and materials
Manufacturing and machines
FRAMECAD system
LGS structural design
Actions and Eurocode
Hot-rolled steel and mixed structures
Building physics and build-ups
Foundations and geotechnics
Applications and operation
Fire safety and fire resistance
Construction products and certification
Building procedure and design stages
General design and BIM
Service: general design
Service: structural design
Service: LGS shop design
Service: choosing a service
Service: plan review
International examples
- International case studies

On this page

Overview

International case studies

In preparation

This article is part of the structure; its content comes in the next round. It will cover:

case studies from machine makers (e.g. FRAMECAD) and designers, with sources
building type, storeys, structural solution, lesson
our own projects: References

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