Abstract
The Church of the Nativity in Blenheim is in two distinct structural types. The nave, narthex and tower are of brick veneered reinforced concrete and steel portal frames constructed about 1959 to replace an old timber building. Check calculations showed this to generally meet latest code requirements.
 The transept and chancel was, prior to the strengthening work, of unreinforced brick masonry built about 1906 - with some reinforced buttresses and reinforced concrete bands. The whole building is roofed with concrete tiles.
 The initial assessment of the building was made in terms of Clause 301A of the Municipal Corporation Act in 1976.
 This building is regarded as one of Blenheim's finest older buildings and the members of the Church did not wish to lose, or detract from, its character, either by obvious strengthening or rebuilding.
Highlights
The Church of the Nativity in Blenheim is in two distinct structural types
The nave, narthex and tower are of brick veneered reinforced concrete and steel portal frames constructed about 19 59 to replace an old timber building
The transept and chancel was, prior to the strengthening work, of unreinforced brick masonry built about 1906 - with some reinforced buttresses and reinforced concrete bands
Summary
The nave, narthex and tower are of brick veneered reinforced concrete and steel portal frames constructed about 19 59 to replace an old timber building. Check calculations showed this to generally meet latest code requirements. The tenders were higher than the finance available At this stage, in discussion with L.G. McSaveney, of Stresscrete Marlborough, the possibility of drilling the walls to provide a viable alternative was first envisaged. McSaveney, of Stresscrete Marlborough, the possibility of drilling the walls to provide a viable alternative was first envisaged As this could provide an unobtrusive strengthening system we were instructed to proceed with the detailed design. From NZS 1900 Chapter 9.2 the walls are generally classified as unreinforced
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