CINTEC International News
1997

CINTEC'S LONGEST ANCHORS

AUSTRALIA

At 10.27 am, on Thursday December 1989, the city of Newcastle in New South Wales was struck by the first significant earthquake to affect an Australian urban area. The earthquake, registering 5.6 on the Richter scale and with a Modified Mercalli Index of up to VIII, had an epicentre approximately 14km south west of the city's centre. the most important building to be severely damaged was Christ Church Cathedral which dominates the skyline of the city. Earthquakes had previously occured in Australia only in sparsely populated areas, and most practising structural engineers and building authorities know little, if anything, about earthquake design requirements.

The effect of the earthquake was largely as might be expected: high set stone crosses and other decorations fell to the ground, flying buttresses were dislodged, shear cracking occurred in the north and south walls and out-of-plane movements occurred in the wast wall dislodging windows.

Work on a building such as Christ Church Cathedral is governed by State heritage legislation which invokes the International Council on Monuments & Sites (ICOMOS) principles derived From the world body's Venice Charter. To repair and strengthen the Cathedral, reinforcement of the walls was necessary, with least visual intrusion or damage to the existing fabric. Materials had to be found which were compatibla with the masonry of the building and which ensured the long life for which cathedrals are noted.

The CINTEC Anchor System was chosen by the engineers to solve the Cathedral's problems when it became obvious that no other company had the materials, experience and expertise to meet all the requirements. Bill Jordan, a structural engineer who runs the CINTEC operation in Australia, convinced the consulting engineers and architects that CINTEC was the best solution with the lowest risk. Only CINTEC was able to offer a high strength stainless steel anchor body coupled with a purely cementitious grout which was controlled by a woven sock to prevent its escape. Trial installations and tests were undertaken before CINTEC's accredited installer, Australasian Concrete Services Pty Ltd was contracted to place over 4 km of CINTEC anchors.

The aim of the repair and reinforcement work was to turn the building from a brittle to a ductile structure, able to resist future earthquakes. CINTEC anchors were used to reinforce walls and piers, horizontally and vertically. Some steel frames were used where they could not be seen, behind the parapets and in the tower.

CINTEC anchors used on the project ranged from 215mm long RAC cavity ties to 32 metre long anchors in the nave walls which were manufactured from 32mm diameter "Hi-proof" grade 316 deformed stainless steel bar. All the long anchors had to be manufactured on site, with long vertical anchors being installed by crane.

The 32 metre anchors were the longest ever installed by CINTEC and amongst the longest in the world.

Water could not be used for drilling because of the damage it could do to the building, so all drilling was carried out with non-coring, polycrystalline diamond bits using air for cooling and cuttings removal.

Down-the-hole video was used to verify the integrity of all drill holes and each hole was surveyed for its full length using techniques specially developed on site by the surveyors.

Christ Church Cathedral, New South Wales, Australia, after completion of repair and strengthening.

UNITED KINGDOM, WALES

The furnaces at Blaenavon were built in 1788-89 and, by 1796, were the heart of the second largest ironworks in Wales until its demise in the 1880's. It is now in urgent need of attention, CADW, responsible for the renovation of Welsh historic monuments, are involved in a programme of restoration to the main furnaces at Blaenavon. A series of anchors have been installed to support the delicate structure to allow access for repairs and refurbishment.

Plowman Craven & Associates of Harpenden, Herts, (PCA) Contributes to Blaenavon

PCA were brought in to produce a digital 3D model for the engineering team responsible for stabilisation of the structure. Working in very difficult conditions, the team collected data to produce 3D elevations of all the faces of the furnace.

THE LEANING TOWER OF TORONTO?

Not so famous perhaps as the Italian tower, but, the Don Valley Chimney definitely has as pronounced a lean as the Pisa counterpart.

The Don Valley Brickworks chimney is the last remaining chimney of Toronto's most significant brickworks. McGillivray Architect was selected to restore it. The chimney, built in 1890, had serviced three adjacent downdraft kilns. The shaft had been deteriorating through the years and had become a pigeon roost. Significant cradcking appeared on the east and west elevations and it was found to be leaning almost 43 inches to the south and a bit to the west. The corrective action was to stitch two sides together using the CLS CINTEC anchoring system. The CLS CINTEC Canada Ltd. company has had previous experience in similar projects obtaining execllent results in what is truly corrective surgery on buildings. The restoration work also included substantial repointing and some brick replacement.

Cavity Lock Systems are pleased to announce the appointment of its new Chief Executive, Keith Minton. Over the last few years the company's expansion programme, and increased activity throughout the world, has led Cavity Lock's Managing Director Peter James, to appoint Keith. He will have control of the day to day running of the Company, including sales, marketing, project management and the implementation of the business plan.

Keith brings a wealth of management experience and skills to the company. He enjoyed a 30 year career in the Royal Air Force, including service in Cyprus, the Falkland Islands and Germany. He was promoted to Air Commodore in 1991 overseeing the repatriation of the main forces from Germany to the UK. His last appointment was as the Director responsible for the building of a new 27M headquarters.

His extensive knowledge of controlling a broad range of key support functions, which includes human resource, finance and facilities management, will prove vital for the planned growth of the Company.

BATMAN AT ROYAL BRIDGE!

A recently completed CINTEC project was the refurbishment of the Royal Border Bridge, Berwick on Tweed. This magnificent bridge carries the main line from King's Cross, London, to Edinburgh, Scotland. Built by George Stephenson and opened by Queen Victoria in 1850, the bridge is 2,160 feet long, with 28 imposing arches 126 feet high. It was the repair and refurbishment of land based arches that CINTEC undertook for Railtrack.

In order that the stone work repairs could be carried out safely, and in all weathers, an intricate network of scaffolding was built supporting staging boards. The size of the project can be gauged by the simple fact that if all the steel scaffolding tubes were laid end to end it would cover 65 miles!

Green nylon based mesh surrounded that main work areas, to protect the workers from the elements, but most importantly to contain dust and protect the environment.

What drove the engineers batty was the need to protect a colony of bats that used the arches for the roosting areas, protected by law, provision had to be made to keep their exits clear. Another first for CINTEC, who have duly added 'Bat' experiences to their portfolio.

NEVER A BRIDGE TOO FAR!

The installation of CINTEC anchors, is carried out in the most difficult of circumstances none more than at this job in Isle of Wight, UK.

CINTEC does the 'Time Warp'

John Brooks, CINTEC's Western UK Region Representative, has come across a most extraordinary project, in Saltash, near Plymouth. Apparently, a grant of 66,500 has been awarded to the Tamar Protection Society for the refurbishment of a 'Time Capsule' grocery ship, called Elliott House.

This shop has changed little since it closed in the 1970's and, with the grant, will be restored as a museum.

Retired grocer Francis Elliott, left the shop in his will to the Tamar Society, on condition that the shop is preserved as s historical display, that of a family grocers shop, with the Elliott name preserved. It is complete with all the original decor, advertising material and even some preserved bottles of tinned foodstuff.

CINTEC News - Round the World

The CINTEC Anchor System is now recognised throughout the world by structural engineers and architects for its use in repairing buildings with structural faults

BELGIUM
MONS -
Repair to the ancient Chapelle de Beguige.

CANADA
OTTAWA - Parliament Buildings.
The repairs to centre, east and west blocks will continue until approximately 2005. CINTEC's latest involvement was to supply 14 (No.) 1 1/2 diameter anchors each approximately 36' to 40' long to stabilize the pinnacles of the oldest and only remaining building of the original Parliament building, the Library.

Religious Buildings -
CINTEC has been busy in supplying anchors to stabilize and tie the wythes of the masonry walls together on a number of religious buildings, including Christ Church Cathedral, Montreal; Belleville United Church St. Alban; the Martyr, Aldophustown; Picton United Church & St. Matthew's Greek Orthodox Church, Reading, Pennsylvania. CINTEC has also been specified for the repairs of another three churches in Montreal.

MONTREAL - Bank of Montreal Headquarters
CINTEC anchors were specified by the Project Architects Werleman, Guy McHanon of Montreal to tie back the existing stone panelling to an 8" Terra-cotta back up wall. Before the main work was carried out 10mm (3/8") dia test anchors were installed in the back up wall. The pull out required was 400 lbs. The average test load achieved was over 1,333 lbs.

EGYPT

Mr. Peter James, Managing Director of Cavity Lock Systems, leads a fact finding mission to Egypt, to discuss the El Ghouri Mosque and other projects with the Department of Egyptian Antiquities

FRANCE
SEVRES -
CINTEC anchors were used in the restructuring and redesign of a 25,000 sq.metre modern office block.

GERMANY
BRANDENBURG -
Repairs to the ancient Brandenburg Tower & the historic Brandenburg Cathedral.

WULZBURG -
CINTEC anchors used in repairs to the Historic Fortress.

WANDSBEK -
CINTEC anchors as basis to the construction of a new geriatric department of the General Hospital.

KIEL -
CINTEC anchors were used in the basic construction of the new ADAC Centre.

STADE -
The development of the Public Record Office building. Other projects include renovations to Schlob Romrod; City Wall, Heidenheim, Schlob Hellenstein.

MALTA
Structural improvements to a Trust House Forte Hotel.

NEPAL
KATHMANDHU -
CINTEC are working with UNESCO, on the Seismic up-gradings to a World Heritage site.

PUERTO RICO
Real Audencia -
Following the article in the last edition of CINTEC News, preliminary work has started to stabilize the building and CINTEC anchors have been supplied. Full restoration should follow, depending upon funds, once the initial stabilization work is complete.

San Juan -
CINTEC has been specified in the repairs of Bridge No. 86 over San Antonio Rt25.

SAUDI ARABIA
CINTEC anchors used to lock together an ornamental fountain for the Royal Palace of Jedda.

UNITED STATES

SILVERTON, COLORADO - Silverton Town Hall was devastated by fire one November night. The members of this small rural community under the guidance of Richard Beardmore, P.E. completely rebuilt and restored the building to its former glory. CINTEC were delighted to have played a part and were proud to be present at the ceremonies in Chicago last autumn.

NEW YORK - St. Thomas's Church, 5th Avenue Working closely with the New York Architects Beyer Blinder Belle and, Engineer Robert Silman, CINTEC supplied and installed over 150 3/8" dia anchors up to 3ft in length to tie the stone work of the Turret Buttresses and tower together. Now that the scaffolding has been removed New Yorkers & visitors alike can appreciate the true beauty of this magnificent church.

CHICAGO - The Jewellery Exchange on South Wabash
During the refixing of the Terra-cotta facade to the back up wall using 3/8" dia CINTEC anchors the steel frame work of the building became a problem. Combining two diverse material technologies, CINTEC's R & D Department working with Jon Boyd and Associates, Chicago, developed a masonry retrofit anchoring system which combines welded steel studs with the CINTEC retrofit Anchoring System. This combined system has now been successfully used to finish the project and has been used on other projects.

ZIMBABWE
HARARE -
Corbel anchors for the Anglo American Mining Corporation.

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