Heli news

Appealing Outcome for Silent Bells

All Saints Church in the village of Curry Mallet, five miles east of  Taunton, Somerset, is a beautiful Grade 1 listed building dating back to the 15th century.
Unfortunately, for a number of years its ancient bells have remained silent due to concerns about their safety and the general condition of the tower. However, following sympathetic repairs undertaken by TRAC Structural, using Helifix products and techniques, the tower has been stabilised and repaired, the shifting bell frame is secure and the bells can ring out once more.
Age and weathering, combined with the stresses created by the weight of six pealing bells, had produced cracks in the soft Lias stonework of the 70ft tower
.
The total weight of the six bells is almost two tons which increases significantly during a full rotational peal. This had lead to movement in their supporting frame which was deemed unsafe.
Using abseiling techniques, TRAC personnel bonded pairs of stainless steel HeliBar reinforcing rods into slots channelled into the stonework at five different levels. This was repeated on all four elevations with bonded CemTies connecting the HeliBars at each corner via holes drilled behind the buttresses. The effect was to tie the stonework together and stitch cracks while creating masonry beams which distributed the structural loads.
Additional cross-stitched CemTies were installed internally to bind the cracks while to secure the two giant beams that support the bell frame, two pairs of BowTies were installed, through the masonry, into each of the beam ends to complete the concealed stress-free repairs.


Full Recovery for Converted Hospital

Due to the presence of significant structural faults, the conversion, by Berkeley homes, of a former Victorian hospital in Windsor into private dwellings appeared to require major sections to be taken down and rebuilt. This was going to cause delays, visibly disrupt the existing fabric and greatly increase costs.
Fortunately they decided to use our stress-free Helibeam System of concealed masonry repair which ensured an aesthetic finish, avoided any rebuilding, provided an insurance backed guarantee from Approved Installer, South Eastern Ties economically than would have been the case using traditional repair methods.
South Eastern Ties were able to use a combination of Helifix products to restore full structural stability while retaining the existing building fabric. Various lengths of bonded HeliBar rods were used to stitch cracks, create new lintels and reinforce and stabilise sections of masonry, particularly in separating bays and at the corners of the building. Grouted CemTies were installed to secure brickwork above several openings and reconnect external and internal walls while DryFix ties were rapidly power-driven into position to stabilise sections of delaminated brickwork.

 


 


What a Bore

When resecuring the stone facing on the head retaining wall of a main drain outfall at Gravel Farm, Rodley, Gloucestershire, workers for TRAC Structural had to be alert for the roar of the approaching tidal bore which could lead to water levels rising 2 - 2.5m in just a few minutes.
The outfall forms part of the flood alleviation scheme on Rodley Plain in the inter-tidal zone to the west of the River Severn, which has the second highest tidal range in the world. All work had to be hastily abandoned on several occasions when the Severn Bore was heard rushing down the drain.
On the occasion of spring tides the water submerges the top of the headwall by 1.5m which had contributed to the facing stones becoming detached from the concrete backing by as much as 70mm.
Where possible the stones were tied back to the concrete using grouted stainless steel CemTies to stabilise the structure with minimal disturbance to the stones. Some stonework had to be rebuilt to allow the installation of a new ladder leading down to the inspection flap which is opened by means of a winch.


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