Author: Dhileepan

  • Getting the Drawings Reviewed

    Getting the Drawings Reviewed

    Drawings are always submitted for approval before fabrication. When any changes are given by the structural engineer or the architect, after implementing the changes, the drawings must be submitted again for 2nd approval so that the structural engineer & the architect will review & approve the drawings.


    In some cases, the architect & the structural engineer skip their duty of reviewing & question the detailer whether the detailer has implemented all the changes. Refer below image for an example.


    In such cases answering with a “yes” might cause trouble to the detailer & the corresponding concern in he future.


    Rather than answering the question, the detailer can pose a question to the question asked like “Have the Structural Engineer and Architect approved?”.
    By such way, the detailer has attended to the structural engineer or the architect and also the duty to review the drawings has also been assigned once again to him.

  • Traffic Railings

    Traffic Railings

    Author: Pon Dhileepan

    A new bridge on the Crescent right turn grade sepration over the Crescent and city west link at Lilyfield and Annandale at 4.6km west of Sydney Rozelle interchange and wester harbour tunnel is built for the NSW Government.

    This bridge is more than 400m in length with approach & departure ramps. RHS (Rectangular Hollow Section) steel railings are provided on both sides of the bridge.

    The barriers curve along the bridge and also the levels rise and fall as the bridge goes on. Two consecutive railings are connected together by a hollow connector. Refer to the images below.

    ISOMETRIC VIEW
    PLAN VIEW
    RAIL ASSEMBLY
    RAIL CONNECTORS
  • Mosnam Metro – Renovation

    Mosnam Metro – Renovation

    Author: Pon Dhileepan

    A set of buildings in Mosman NSW are renovated. The front walls, some windows, doors & a roof are retained to maintain the heritage. The entire interior, GF & FF slabs, some roofs, internal walls etc are made new.

    Existing Structure – Buildings Inside Red Polygon

    Temporary steel frames are used to support the walls to be retained. These remains intact throughout the demolition process until new steel & concrete take their place.

    Not all the internal structure are entirely demolished or all the temporary structures are entirely erected in a stretch. A clear understanding of the sequence of demolition and erection of temporary structure work is vital. Connections given by the structural engineer some times hinder the erection process. It is the duty of the steel detailer to propose new connections accordingly.

    Walls to be Retained
    Temporary Steel Frames to Support the Walls

    New GF concrete slab is laid. New steel columns are added at the GF level to support the FF slab. Steel headers are added to exiting openings that lost support. New concrete walls cover the back & a side of the building. Roof steel rafters are supported between the existing front walls and the new back walls.

    A few retained floor joists are stiffened using additional purlins.

    New Building After Renovation
    New Building Without Roof
    Newly Added Structural Elements
  • 7, Callen Street

    7, Callen Street

    Author: Pon Dhileepan

    This single storey residential house of dwelling area 294m2 is built in Seymour, Victoria.

    This building is neither entirely load bearing structure nor framed structure. It is a composite structure. The roof purlins & beams are supported by steel columns at some area and by block walls at other area.

    The initial design lacked coordination between the structural engineer and the architect. We had raised about 44 RFIs to them. The response delayed the project but the RFIs raised by Tek1 saved a lot of reworks and money at the site.

    ISOMETRIC VIEW
    ISOMETRIC VIEW – STEEL ONLY
  • Skid

    Skid

    Author: Pon Dhileepan

    This is machinery skid made of steel. The main frame made of UB200*18 holds an Alfa Laval Filter (ALF) and a pump. A pedestal out of 75*6EA is bolted to the UB200*18 frame for a strainer. 600mm wide walkway made of chequered plates are placed on top to access the mechanical units. Holes are pre drilled in the steel frame to match the size & location of the mechanical units.

    Steel Skid Frame with Walkway Chequered Plate
    Steel Skid with Mechanical Units
  • Sliding Gate

    Sliding Gate

    Author: Pon Dhileepan

    This sliding gate is modelled to match the existing balustrade (Drawn in red colour). A steel frame covered with aluminium cladding is guided by rollers at the bottom and the rollers attached in the posts.

    Gate Front View
    Gate Back View
    Guiding Rollers attached to Posts
  • M Square

    M Square

    Author: Pon Dhileepan

    This is a commercial development with the combination of precast panels & steels.

    ISOMETRIC VIEW
    ISOMETRIC VIEW – STEEL ONLY
  • VSBA School – Building 21

    VSBA School – Building 21

    Author: Pon Dhileepan

    This is a double storey school building. This building with same dimension and design are used at 4 different locations.

    Full Isometric View
    Isometric View – Steel Only
    Grid and GF Slab Plan

  • Bathers Bay – New Castle Beach

    Bathers Bay – New Castle Beach

    Author: Pon Dhileepan

    Both precast concrete and steel drawings in this project are supplied by TEK1. The outer face of precast concrete has irregular pyramid shape.

    FULL ISOMETRIC VIEW
    ISOMETRIC VIEW WITHOUT ROOF SHEET
    ISOMETRIC VIEW – ONLY STEEL