Services

Structural Design and Certification

Design and Certification of structural solutions for our clients.

  • Structural Design: Design of structural solutions in response to customer requirements.
  • Certification: Inspecting and certifying completed structural works.

Inspection and reporting

Professional review of any site or job, usually to establish the condition of the site and/or structure in preparation for subsequent work.

  • Dilapidation (condition) Reports: A detailed visual inspection and documentation of the condition of a structure or part of a structure at a point in time
  • Geotech Inspection and Reports: Technical examination of the strata under any building or site in order to understand the through-depth composition of the substrate.
  • Emergency Inspection: Inspection of structures compromised by damaging events such as fire, subsidence or water ingress, in order to assess the adequacy of the damaged structure and establish an appropriate make-safe strategy.

    Difficult excavations

    Excavation of sites with challenging geotechnical conditions or in challenging locations.

    • Constrained sites: Excavations where existing structures adjacent the site could be compromised by the excavation.
    • Confined internal and limited access excavations: Excavations in confined locations like underneath buildings, or along harbour foreshore where conventional excavation machinery and spoil removal techniques cannot be used.
    • Sandy soils: Excavation of sites with sandy soil or pure sand where bulk excavation is not practical.

    Redevelopment of foundations and footings

    Redevelopment of foundations or footings that have been damaged, or where customer requirements such as a build-down or constrained excavation require amendments to existing foundations.

    • Underpinning: Installation of classic monolithic concrete underpinning, either as single pins or as contiguous underpinning.
    • Pier installation: Drilling and installing single or contiguous reinforced concrete piers.
    • Steel screw piling: Installation of galvanised or plain steel screw piles
    • Rock anchors &/or ground anchor installation: Installation of rock &/or ground anchors to control lateral movement.
    • Ground stabilization works (including sand stabilisation): Ground stabilisation using techiques like microfine cement injection into sand substrates.
    • Retaining Walls: Rebuild compromised retaining walls (especially dismantling and rebuild of heritage sandstone retaining walls); installation of new retaining walls.

    Stabilisation and repair of damaged structures

    Stabilisation and repair of structures damaged by events such as ground movement, water ingress, and fire. Our services include emergency insepctions and make-safes, for example where a structure may threaten collapse into a public space.

    • Make-Safes: Putting in place temporary structural elements to stabilise damaged structures to prevent dangerous failure and allow subsequent recovery work to proceeed in safety.
    • Shoring and temporary structural support measures: Placing elements like shoring, needle beams or sacrificial beams as required to permit other works to proceed safely.
    • Hydraulic Diversion: Placement of appropriate drainage and waterproofing to prevent ground water or surface water incursion into living spaces or storage spaces.
    • Replacement of failed lintels: Removing and replacing failed concrete and/or steel lintels.
    • Concrete cancer repairs: Remediation of concrete spalling due to corrosion (rusting) of reinforcing bar.
    • Lifting, re-levelling & re-loading of built structures: Hydraulic jacking and re-levelling of built structures, usually following the placement of underpins, including grouting or packing and re-loading the sub-structure.

    Alteration or refurbishment of existing core structural elements

    Working with dilapidated structural elements, such as rusted steel lintels or columns, or modifying existing structures to accommodate new uses. We have extensive experience in altering or refurbishing heritage structures.

    • Selective demolition: Careful demolition and removal of existing structures, as may be required to gut a heritage facade for example.
    • Installations of post-construction reinforcement: Installing post-tensioned reinforcement into existing structures.
    • Structural steel installation: Installation of steel structural elements , such as steel beam, column and lintel installations
    • Reinforced concrete installation: Installation of all reinforced concrete footings, beams, slabs & columns.

    Alteration or refurbishment of facades

    Alteration or refurbishment of curtain wall or brick veneer facades, specialising in heritage structures.

    • Replacement of window frames: Removal and replacement of window frames in refurbished facades.
    • Render repair: Repair of render to match existing surfaces such as bagged or smooth render.
    • Moulding repair or replacement: Repair or replacement of heritage façade mouldings.
    • Wall tie replacement: Replacing rusted wall ties with stainless helifix coil.
    • Crack stitching: Strengthening cracked brickwork by installing stainless steel helifix coils in mortar joints.