Masonry Beams

Thor Helical Standard Detail TLB-01 to 05

 

Load bearing beams can be formed in masonry to evenly distribute structural loads by installing one, or preferably two cords of helical bar 6-12 brick courses apart to effectively support the load triangle of brickwork above an opening.

Installation of a beam has the combined effect of distributing loads and strengthening masonry weakened by structural movement, thus providing a versatile means of restoring structural stability to masonry where it has cracked or failed and lost its load bearing capacity.

These are generally double bar installations incorporated into mortar bed joints to traverse cracks and dissipate stresses within masonry over a larger surface area whilst still allowing small movements of the structure due to natural thermal variations.

Beams can be used in isolation or accompanied by a range of Thor Helical methodologies to restore stability to a structure resulting from inadequate or failed drainage, inappropriate or failed foundations, ground movement, weathering, poor building practice and increased loading stress due to building alterations.

 

Soldier Arch Repair on a Victorian Farm Cottage

On older buildings originally constructed without lintels over openings relied purely on the strength of timber framed windows to support masonry over the openings. The series of photographs below illustrate an example of a late victorian farm cottage where masonry above openings had started to sag by its bowed and cracked appearance; possibly due to decay of the original wooden frame windows?

A decision was to made to replace the windows with more thermally efficient uPVC double glazed units prior to reinforcing and strengthening the masonry above resulting in the complete failure of soldier arches above requiring temporary strutting support. To provide essential support to the masonry we were called in to install Thor Helical Remedial Masonry Beams above openings combind with Grout Ties driven up through soldier arches to tie in with the lower cord of Masonry Beam, all held in position with WHO60 cementitious grout.

 

Before repair.

New uPVC window installed with temporary propping in place.

Repair complete with new window in place.

 

Before repair.

New uPVC window installed with temporary propping in place.

Repair complete with new window in place.

 

Before repair.

Temporary propping of soldier arch being carried out.

Repair complete with new window in place.

 

Before repair.

New uPVC window installed with temporary propping in place.

Repair complete with new window in place.

 

Edwardian House Suffering from Movement Created by a Combination of Age, Poor Design and Leaking Drainage at side of Property 

 

Repair of a 'bowing' bay window to an early C20 Edwardian property using a combination of Masonry Beams, Lateral Restraint Ties, crack repair and brick replacement.

Movement of the bay window masonry has been caused by a combination of old age, minimal lateral restraint of wall when originally built, a large opening to masonry ratio and some lateral movement to the side of the building created by drainage problems.

 

Completed Repair

 

 Replacement of an Existing Corroding Lintel

The photographs below illustrate an example of beam installation over an opening to support masonry above to allow replacement of a faulty lintel installed as part of the structure when originally built.

 

Masonry Beam

Load bearing beam installed 4 courses above a window opening prior to removal of brickwork below using Thor Masonry Beam to support brickwork above

Brick Support

Brickwork above window removed to expose existing failed plate lintel and to allow installation of new 'L' shaped lintel

Lintel Replacement

New lintel in place and brickwork being rebuilt to a higher standard than the original

 

As an approved specifier and installer of the Thor Helical products we can offer an insurance backed 10 year warranty on Masonry Beam works for a small additional fee through Construction Guarantee Services Limited.

 

Masonry Beams

Resurspec Structural Repair Specialists Norwich Norfolk Thor Helical Remedial

This website uses cookies. Find out about cookies here. By continuing to browse this site you are agreeing to our use of cookies.Remove Cookie Message button  Designtec Web Design