Category: Projects

  • pedestrian over pass

    Bendigo Pedestrian over pass

    Just revisiting some old projects. This project was fabricated by Third angle, Detailed by Tek1. One of the early pedestrian bridges detailed by Tek1.

    Many more followed after this.

    Bendigo pedestrian Bridge
  • TYPES OF MODEL VIEWERS FORMAT , PURPOSE AND ITS BENFITS

    A. IFC Mode

    Industry Foundation Classes (IFC) is an open file format developed by Building Smart Alliance. It is an international data exchange standard for exchanging building information across different software platforms. An IFC Model is just a model of a building or a construction project with all geometric, structural, and semantic information.

    Key Features of IFC Models:

    • Open Standard: IFC is vendor-independent, i.e., any software that supports it can be accessed, without regard for the vendor.
    • Static Data Exchange: It is mostly utilized for data exchange between software tools, data import, and export. For instance, an architect can create a model using Revit and export it as an IFC file, which can then be imported into structural engineering software like Tekla or SAP2000.
    • Limitation of Real-Time Coordination: IFC files are representations of the model at a specific moment. Changes in one application are not duplicated in another except where the file is re-exported and re-imported.
    • Use Cases:
    • Exchange of models between stakeholders with various software.
    • Ensuring interoperability in interdisciplinary projects (e.g., construction, engineering, and architecture).

    Advantages of IFC Models:

    • Encourages collaboration and interoperability in BIM workflows.
    • Reduces errors by making sure all stakeholders are working from the same information.
    • Allows clash detection and coordination between different disciplines.

    B.  Live Link Model Viewer

                      A Live Link Model Viewer is software that enables real-time sharing and visualization of BIM models on various software platforms. Unlike IFC models, which are pre-exported static files, a Live Link Model Viewer enables multiple users to work on the same model at the same time using different software programs. Common examples of Live Link Model Viewers are:

    Revit Live: A cloud-based collaboration platform by Autodesk.

    Trimble Connect: A BIM data management and sharing tool.

    Key Features of Live Link Model Viewers:

    1. Real-Time Collaboration: One software application’s changes are reflected immediately in the model viewer and other linked applications.
    • Dynamic Data Sharing: Unlike static IFC files, Live Link Model Viewers offer dynamic, real-time linking between software applications.
    • Multi-User Collaboration: Multiple stakeholders can view and edit one model at the same time even though they are in different software.
    • Use Cases:
    • Real-time collaboration among architects, engineers, and contractors.
    • Collaborative design review and clash detection.
    • Smooth communication between teams working on different software platforms.

    Advantages of Live Link Model Viewer Benefits:

    • Make collaboration more effective and faster.
    • Eliminate the need for repeated file imports and exports.
    • Enhance accuracy by getting the entire team to work on the current version of the model.

  • How TEK1 Solved the Complicated Star Node Puzzle in Great EMU in the Sky

    How TEK1 Solved the Complicated Star Node Puzzle in Great EMU in the Sky

    At TEK1, we believe great detailing is more than just precision—it’s about understanding real-world challenges and turning complexity into clarity.

    The Challenge

    The Great EMU in the Sky project presented one of the most unique and technically demanding structures we’ve ever worked on—a 30-metre-wide globe made up of 128 intricate “star nodes” connecting the bracing members.

    These nodes weren’t ordinary joints. Each featured 5 or 6 connection points and came in three different CHS sizes, with every arm set at unique, non-repeating angles.

    For the fabrication team, this posed a significant challenge:

    • 128 Complex Star Nodes, each with custom angles
    • Inconsistent geometries
    • Time-consuming and difficult to fabricate accurately

    Even with precise 3D modelling, the practicality of fabrication was proving to be a serious bottleneck. Something had to change.

    The Turning Point

    That’s when TEK1 took the initiative.

    Rather than simply delivering a model and walking away, we engaged directly with the fabricator to understand the issue from their perspective. We realized that even the most accurate detailing wasn’t enough—what the team needed was smarter, fabrication-friendly solutions.

    The Solution

    Our detailing team re-engineered how the star nodes were documented, presented, and ultimately fabricated. Key solutions included:

    • Custom fabrication jig design: We developed a dedicated jig that allowed star nodes to be fabricated with greater ease and precision, regardless of the angle configuration.
    • Standardized node sub-groups: We grouped similar nodes together to reduce variation and streamline production.
    • Detailed templates: For common angle types, we provided accurate templates to guide fabrication.
    • Visual fabrication aids: Clear drawings showing exact cuts, welds, and orientations for every node.

    The Result

    • Faster fabrication times
    • 🎯 Improved accuracy and alignment
    • 🔁 Reduced rework and error rates
    • 🤝 Stronger collaboration between design and workshop teams

    Most importantly, the fabricators were able to work with confidence, knowing each node would come together exactly as intended.

    Taking Detailing to the Next Level

    This project reinforced one of TEK1’s core values: true excellence in detailing comes not just from precision—but from empathy. When we truly understand the needs of the people building the structure, we unlock practical, buildable solutions.

    The Great EMU in the Sky is more than a globe—it’s a powerful example of what happens when detailers and fabricators work together as one team.

    📢 Call to Action:

    🚀 Have a complex structure or fabrication challenge? Partner with TEK1—where technical expertise meets buildability.

  • TEK1 Brings the ‘Great Emu in the Sky’ Sculpture to Life for Sydney’s M12 Motorway

    TEK1 Brings the ‘Great Emu in the Sky’ Sculpture to Life for Sydney’s M12 Motorway

    TEK1 is proud to be part of an iconic project—the ‘Great Emu in the Sky’ sculpture, a monumental 30-meter-high emu nest that will stand as a cultural landmark along Sydney’s M12 Motorway.

    A Symbol of Dharug Heritage

    The peanic structure celebrates the Dharug Community’s sacred creation story of the Great Emu constellation.

    A Landmark Visible from Land & Sky

    Positioned for maximum visibility, the sculpture will be seen by:

    • Road users
    • Pedestrians
    • Sydney Metro passengers
    • Even planes approaching and departing Sydney Airport

    Blending Art, Culture & Engineering

    The steel artwork will take on different forms depending on the time of day and viewing angles:We look forward to seeing this one-of-a-kind sculpture take its place in Sydney’s landscape, honoring history while welcoming the future.

    • By day, it will resemble an emu nest, crafted from signature steel “sticks” that reflect the natural landscape and traditional materials of the Dharug people.
    • By night, it will illuminate and reveal two emu forms, visible only from certain perspectives—mirroring the Great Emu constellation as it shifts throughout the six Aboriginal seasons.

    TEK1’s Role in Detailing the Sculpture

    A lot of technical challenges were navigated to ensure that this complex structure, could be fabricated and erected, cheaply and efficient. We will document this on our blog if you’re interested.

    Please refer to the below video which represents the various stages of on-going erection

  • SYDNEY METRO CITY & SOUTHWEST TUNNELGRC PANELS & ITS BRACKET

    SYDNEY METRO CITY & SOUTHWEST TUNNELGRC PANELS & ITS BRACKET

    TEK1, we recently had the opportunity to detail GRC panel brackets for a section of the Sydney Metro Tunnel, utilizing a point cloud survey to ensure precise alignment and installation.

    Project Overview

    The client provided a point cloud survey of the tunnel, allowing us to accurately determine the placement of GRC panels and their supporting brackets. Since tunnel walls are rarely perfectly straight—often featuring irregularities, ups, and downs—extra attention was required to ensure each bracket was positioned correctly for a seamless fit.

    Challenges & Solutions

    Efficient Coordination – By leveraging point cloud technology, we minimized potential site adjustments, streamlining the installation process for our client.

    As-Built Adjustments – The natural deviations in the tunnel wall’s shape meant that standard placements wouldn’t work. The point cloud data helped us fine-tune the bracket positions to match real-world conditions.

    Precision Detailing – Each steel bracket was meticulously detailed to accommodate the GRC panels, ensuring a secure and uniform installation.

    Conclusion

    Working with as-built tunnel walls requires high accuracy and adaptability, and this project was a great example of how TEK1 effectively integrates advanced technologies like point cloud surveys into our detailing process.

    Check out the snapshots below to see how the GRC panels are securely fixed to the tunnel wall using custom steel brackets.

  • Understanding PFC Shear Connection: A Practical Discussion

    Understanding PFC Shear Connection: A Practical Discussion


    Based on this scenario, what would you propose as an alternative to balance structural performance and fabrication efficiency? Share your thoughts in the comments!

    Introduction

    Shear connections play a crucial role in structural steelwork, ensuring the stability and strength of a framework. One common method is the extended shear plate connection, as seen in the R1 to J1 connection detail. However, this method introduces bolt eccentricity, which could impact the overall efficiency of the joint.

    The Challenge

    In the given design, the PFC (Parallel Flange Channel) shear connection is detailed using an extended shear plate. While this is a standard approach, it inherently results in increased eccentricity due to the offset load transfer through the bolts. This can lead to additional bending moments in the connection, requiring careful consideration in the design phase.

    Possible Solution

    A potential improvement is to introduce a cope in the PFC section and utilize a simple shear connection instead. This modification would:

    • Reduce bolt eccentricity
    • Simplify force transfer
    • Enhance structural performance

    However, this approach was not accepted by the client due to fabrication ease considerations.

    Key Learning for Junior Engineers

    This case highlights a key engineering principle: design optimization vs. fabrication practicality. While structural efficiency is paramount, practical considerations such as ease of fabrication, cost, and site constraints often dictate final design choices.

  • Erection Issue Eliminated Through Suggested Changes in the Splice Connection During Detail Engineering

    Erection Issue Eliminated Through Suggested Changes in the Splice Connection During Detail Engineering

    Issue Identified During Detail Engineering

    • During detail engineering, it was identified that the design specifies both-side web plates, with shop weld on one side and field bolts on the other.
    • This would have created a field erection issue, as the shop-welded web plate on both sides prevents secondary beam placement.

    Proposed Solution: Fully Bolted Connection

    • Use bolted connections on both sides instead of welding one side.
    • This allows the web plate to be shipped loose, making field installation easier.
    • At the site, the secondary beam can be placed first, followed by the web plate installation and bolting.
    • Factory-drilled holes ensure precise alignment and better quality.
    • Eliminates on-site welding hazards and inspection issues.

    Client Approval

    • The client accepted the suggestion due to its practical benefits and ease of installation.
    • The change improves efficiency, cost-effectiveness, and safety.

    Conclusion

    • Switching from welded-bolted to fully bolted improves constructability.
    • Ensures stronger, safer, and more efficient structural connections.
    • Small design changes can greatly impact project success.
  • Melbourne Airport Gantry

    Melbourne Airport Gantry

    At Melbourne Airport, a gantry supporting a signboard spans 26 meters between laced columns without intermediate supports. The box gantry alone weighs 8 tonne. Since the gantry would bend because of to its self weight, pre-camber of 170mm was provided at the middle.


    For accurate representation, two models were created: one with pre-camber for assembly drawings and another without for general arrangement (GA) drawings. This approach ensures clarity in fabrication and erection, maintaining structural integrity while achieving the desired final alignment.