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Et-Global offers a unique set of engineering skills, acquired over years of experience in the mining, marine and oil & gas industries.  This unique skill set is not only our passion but forms part of what distinguishes us from our competitors. View our Gallery here.

Marine Engineering
Dynamic Structural Engineering
Vibration Engineering
Structural Integrity & Asset Management

Design and analysis of plant structures on ships require specialist knowledge of marine engineering standards, codes of practice, ships motions and industry-specific regulation. Et-Global has been working in this domain since inception and offers a world-class engineering service for marine engineering applications.

The analysis of structures, reinforced concrete and structural steel, for their natural frequencies and harmonic responses lies at the core of our engineering offering.  This specialist service allows Et-Global to be an all-in-one engineering supplier to all our clients for mining structure designs.

As part of the design of structures for dynamic loading, Et-Global offers support to clients with existing structures that are problematic in terms of vibration, fatigue or perceived motion.  Engineers measure the structural response on site, and using specialist Operational Modal Analysis software, can provide clear insights into vibration problems and their cause.

Et-Global’s involvement in a number of structural integrity audits (structural safety audits) and refurbishment programs for a number of large mining houses uniquely positions Et-Global to offer in-depth specialist assistance to clients requiring assistance with asset integrity quantification, asset refurbishment and asset management strategies.

Expertise

Our Full Range of Services

3D Modelling, Draughting & Rendering
Structural Refurbishment

Et-Global operates seamlessly with our clients in both the 2D and 3D environments, through our experienced draughting team in a number of specialist software packages.

Et-Global are specialists in refurbishing assets that have long since seen their “sell-by-date”. Refurbishing saves money and extends the life of your asset by years, keeping costs to a minimum.

Vibration/Seismic Simulation

Et-Global as part of its specialised engineering services supplies an in-depth array of vibration and seismic design services, which include; screening structures, crushers, mills and high energy machinery.

Structural Safety Audit

Structural Safety Audits (SSA’s) form part of asset integrity management cycles as the step wherein the condition of an asset is quantified. SSA’s are performed by experienced Structural Engineers, who inspect structures to quantify and document structural deficiencies.

Standardised Conveyor Systems

ET has developed standard conveyor systems whereby typical sizes 600mm, 750mm, 900mm and 1050mm belt sizes have been pre-developed for most applications, using standard gantries, trestles and components which can be put together to suit the client’s needs in a very short time.

Forensic Investigation

Et-Global has a team of Engineers specialising in on-site inspections and the analysis of structural deficiencies and failures (partial & catastrophic), with experience in the process of root cause analysis for some of the largest mining houses in the world.

SSA vs SIMMs

 
 

Below is a brief overview of the differences between a Structural Safety Audit (SSA) and a Structural Inspection & Maintenance Management (SIMM). Both use visual inspections as a method of examining the structures but the fundamental difference is in the deliverables and thus level of detail that is examined on site.

Hover over the below images for a breakdown on each. 

SSA
SSA
SIMM
SIMM
 

Et Industry Glossary

2D General Arrangement Drawings

(GA's) are drawings showing the layout of a steel structure and would normally contain floor plans, elevations and sections showing overall dimensions and steel member sizes. If all the steel member end connections are "standard", a separate drawing will accompany the GA's showing the detailer typical connections. If 'non-standard' connections are required (often referred to as exotic connections), these will be shown as a spot detail on the drawing, i.e. a localised view of the connection, where it's location will be highlighted on the GA. 

The 2D GA's are traditionally used by a 'shop detailer' to generate individual component drawings for each member of the structure.  

Shop Detail Drawings

Shop Detail Drawings, also known as Fabrication Drawings. Each member of the structure is drawn out separately, showing drillings for equipment/plating, wields, end plates etc. Shop detail drawings can electively form of the fabricator's scope of work, which is common practice. 

 

Traditionally drawn by a draughtsman with extensive fabrication knowledge. This has evolved somewhat over the years and is often done using 3D software to generate 'life like' models from which each member can be extracted OR the software can automatically generate individual drawings for each member. 

 

 The automation of the shop detailing process is still only as good as the draughting skill of the operator. Many operators unfortunately leave the details to the software, which sometimes leads to nonsensical or impractical connections (costing more to fabricate and hard to erect).

Common Practice

It is now common practice for Clients/Project houses which include process, mechanical, electrical engineers etc., to produce their own 3D computer models, showing equipment layout, the supporting structure, piping, electrical and other services etc. Each project discipline is then able to 'extract' their required information. Once the design phase is complete, the information flow is reversed and the 3D model is updated. This process is similar to a pre-assembly and generally highlights clashes and possibly mismatches. From a structural perspective, the 3D structural model can be imported directly into a 'shop detailing'/BIM (building information modelling) software. 

Important Structural Design Checks

Both structural GA's and shop details are to be checked and approved by the Structural Engineer prior to issuing to the client or for fabrication. It is important to not in the case of the shop detail drawings that the Engineer checks member sizes, welds, plate thicknesses, bolt size and grade etc. to ensure that the drawings capture the Engineer's design intent. The Engineer does not check dimensional correctness of the drawings as this is seen as the responsibility of the shop detailer.

2D General Arrangement Drawings

(GA's) are drawings showing the layout of a steel structure and would normally contain floor plans, elevations and sections showing overall dimensions and steel member sizes. If all the steel member end connections are "standard", a separate drawing will accompany the GA's showing the detailer typical connections. If 'non-standard' connections are required (often referred to as exotic connections), these will be shown as a spot detail on the drawing, i.e. a localised view of the connection, where it's location will be highlighted on the GA. 

The 2D GA's are traditionally used by a 'shop detailer' to generate individual component drawings for each member of the structure.  

Shop Detail Drawings

Shop Detail Drawings, also known as Fabrication Drawings. Each member of the structure is drawn out separately, showing drillings for equipment/plating, wields, end plates etc. Shop detail drawings can electively form of the fabricator's scope of work, which is common practice. 

 

Traditionally drawn by a draughtsman with extensive fabrication knowledge. This has evolved somewhat over the years and is often done using 3D software to generate 'life like' models from which each member can be extracted OR the software can automatically generate individual drawings for each member. 

 

 The automation of the shop detailing process is still only as good as the draughting skill of the operator. Many operators unfortunately leave the details to the software, which sometimes leads to nonsensical or impractical connections (costing more to fabricate and hard to erect).

Common Practice

It is now common practice for Clients/Project houses which include process, mechanical, electrical engineers etc., to produce their own 3D computer models, showing equipment layout, the supporting structure, piping, electrical and other services etc. Each project discipline is then able to 'extract' their required information. Once the design phase is complete, the information flow is reversed and the 3D model is updated. This process is similar to a pre-assembly and generally highlights clashes and possibly mismatches. From a structural perspective, the 3D structural model can be imported directly into a 'shop detailing'/BIM (building information modelling) software. 

Important Structural Design Checks

Both structural GA's and shop details are to be checked and approved by the Structural Engineer prior to issuing to the client or for fabrication. It is important to not in the case of the shop detail drawings that the Engineer checks member sizes, welds, plate thicknesses, bolt size and grade etc. to ensure that the drawings capture the Engineer's design intent. The Engineer does not check dimensional correctness of the drawings as this is seen as the responsibility of the shop detailer.

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