Seismically strengtheningof cultural & heritage building.

St Mary of the Angels is an iconic Catholic Church on the corner of Boulcott Street and O'Reily Avenue in the heart of the Wellington CBD.The church is classified as a Category I Historic Place by Heritage New Zealand. The building was opened in 1922 but was closed following the 2013 Seddon Earthquake due to the seismic assessment deeming it earthquake prone.


Contract value:

$699,340


Project St Mary of The Angels
Client LT McGuinness Ltd
Location Boulcott Street, Wellington

" I was most impressed with their work inside the building during the structural demolition and preparation of site works for the ground beams and ground anchors underneath the building. This was not easy work but the guys from Multi Civil carried it out in a very cheerful manner. "

- Father Barry Scannell s.m. (Parish Priest)

" I was most impressed with their work inside the building during the structural demolition and preparation of site works for the ground beams and ground anchors underneath the building. This was not easy work but the guys from Multi Civil carried it out in a very cheerful manner. "

- Father Barry Scannell s.m. (Parish Priest)

Reasons forthe project


The objective of this work was to seismically strengthen a building of outstanding cultural and heritage significance which contributes hugely to the identity and vibrancy of Wellington.

Works consistedof the following


Demolition

  • Structural demolition to existing portal frames which required intensive saw cutting methods.
  • Demolition of existing slab for new ground beams and anchors.
  • Demolition of existing portal columns for new shear walls.
  • Demolition of existing Tower foundation for new ground beams.
  • Demolition of existing Tower sections for new high level anchor beams.
  • Demolition of existing plaster moldings, windows and decorative pieces for new seismic works.
 

Excavation

  • Excavation and backfilling for new ground beams.
  • Excavation and backfilling for new column and anchorpads.
  • Excavation for new tower foundations.
  • Excavation for 4m deep tower raft slabs using smallmachinery and conveyor belts.
 

Drainage

  • Installation of new storm water.
  • Installation of new sanitary sewer. - Installation of new water main.Site works
  • Installation of new landscaping to northern church garden area.
  • Included resurfacing and shape corrections of the existing carpark to the southern area.

Reasons forthe project

The objective of this work was to seismically strengthen a building of outstanding cultural and heritage significance which contributes hugely to the identity and vibrancy of Wellington.

Works consistedof the following

Demolition

  • Structural demolition to existing portal frames which required intensive saw cutting methods.
  • Demolition of existing slab for new ground beams and anchors.
  • Demolition of existing portal columns for new shear walls.
  • Demolition of existing Tower foundation for new ground beams.
  • Demolition of existing Tower sections for new high level anchor beams.
  • Demolition of existing plaster moldings, windows and decorative pieces for new seismic works.
 

Excavation

  • Excavation and backfilling for new ground beams.
  • Excavation and backfilling for new column and anchorpads.
  • Excavation for new tower foundations.
  • Excavation for 4m deep tower raft slabs using smallmachinery and conveyor belts.
 

Drainage

  • Installation of new storm water.
  • Installation of new sanitary sewer. - Installation of new water main.Site works
  • Installation of new landscaping to northern church garden area.
  • Included resurfacing and shape corrections of the existing carpark to the southern area.

Construction

Machinery andEquipment used


  • Machinery and Equipment Used
  • 5 ton Excavator 4 ton Excavator 3 ton Excavator 2 ton Excavator
  • 1 ton Excavator
  • Excavator Attachments – Hydraulic Breaker, Hydraulic concrete crusher
  • Skid Steer loader
  • Motorized Wheel Barrow
  • Conveyor belts
  • 2 ton Roller
  • 500kg Reversible plate compactors
  • Pedestrian roller
  • Trench Compactor 9.0m3 Truck
  • 7.5m3 Truck
  • 3.0m3 Truck 2.0m3 Truck
  • Concrete wire saw cutting equipment
  • Concrete wall saw cutting equipment
  • Hydraulic and petrol concrete cutting ring saws
  • Hydraulic and petrol concrete cutting hand saws
  • Core drilling equipment
  • Electric, petrol and diesel concrete cutting road saws.
  • Multiple sizes of electric concrete breakers. Dust extraction fans.

Skills used on site


  • Demolition Saw cutting
  • Excavation
  • Drainage
  • Siteworks Asphalting


Construction


Machinery andEquipment used

  • Machinery and Equipment Used
  • 5 ton Excavator 4 ton Excavator 3 ton Excavator 2 ton Excavator
  • 1 ton Excavator
  • Excavator Attachments – Hydraulic Breaker, Hydraulic concrete crusher
  • Skid Steer loader
  • Motorized Wheel Barrow
  • Conveyor belts
  • 2 ton Roller
  • 500kg Reversible plate compactors
  • Pedestrian roller
  • Trench Compactor 9.0m3 Truck
  • 7.5m3 Truck
  • 3.0m3 Truck 2.0m3 Truck
  • Concrete wire saw cutting equipment
  • Concrete wall saw cutting equipment
  • Hydraulic and petrol concrete cutting ring saws
  • Hydraulic and petrol concrete cutting hand saws
  • Core drilling equipment
  • Electric, petrol and diesel concrete cutting road saws.
  • Multiple sizes of electric concrete breakers. Dust extraction fans.

Skills used on site

  • Demolition Saw cutting
  • Excavation
  • Drainage
  • Siteworks Asphalting


CustomerSatisfaction


Value for Money

We completed the project within budget and programme requirements, leaving all parties satisfied.

Quality of Job

The project was completed with no defects needing to be reworked. The client was very pleased with how well the project went with no major accidents, incidents or near misses.

Overall Appearance

The project was completed to a high standard of workmanship. The client was extremely pleased with the overall appearance of the project. Multi Civil Contractors was honored and proud to be a part of this project to seismically strengthen a building of outstanding cultural and heritage significance which contributes hugely to the identity and vibrancy of Wellington. The finished product is as the church looked prior to construction, which is what the client hoped for.

CustomerSatisfaction

Value for Money

We completed the project within budget and programme requirements, leaving all parties satisfied.

Quality of Job

The project was completed with no defects needing to be reworked. The client was very pleased with how well the project went with no major accidents, incidents or near misses.

Overall Appearance

The project was completed to a high standard of workmanship. The client was extremely pleased with the overall appearance of the project. Multi Civil Contractors was honored and proud to be a part of this project to seismically strengthen a building of outstanding cultural and heritage significance which contributes hugely to the identity and vibrancy of Wellington. The finished product is as the church looked prior to construction, which is what the client hoped for.

Planning and Execution

Was the job completed on time?The project was completed on time with all of our sections of work completed for LT McGuinness as per their construction programme.Was the project completed within budget?This project was completed under budget. Multi Civil Contractors completed this project on a minimal margin as a donation and contribution to the St Mary of The Angels Church and Wellington.Quality issues or rework required?The project was completed to a high standard that the client was very happy with and no rework was required.VariationsWe completed multiple variations to the contract, the three major ones being. - - Underpinning of existing foundations- Tower raft slab foundations - Northern side landscaping

Planning& Execution

Was the job completed on time?The project was completed on time with all of our sections of work completed for LT McGuinness as per their construction programme. Was the project completed within budget?This project was completed under budget. Multi Civil Contractors completed this project on a minimal margin as a donation and contribution to the St Mary of The Angels Church and Wellington. Quality issues or rework required?The project was completed to a high standard that the client was very happy with and no rework was required. VariationsWe completed multiple variations to the contract, the three major ones being.

  • Underpinning of existing foundationsTower raft slab foundations - Northern side landscaping

Subcontractors

Multi Civil Contractors has had a long serving relationship with the sub contractors used onsite. We subcontracted the following trades:

  • Asphalting - PCL Contracting
  • Sawcutting - Lowerys Concrete
  • Cutting and Drilling


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