Fallen Arches Grange-over-Sands

Some residential designers and builders in Grange-over-Sands have failed to recognize that all brick arches are structural masonry and must be designed according to structural principals.

Booker & Son
01539 534365
Sycamore Down
Grange Over Sands
 
A & S
01539 533962
Oakfield
Grange Over Sands
 
Appleby & Walmsley Building & Property Maintenance
01539 532126
Lakeland Cottage
Grange Over Sands
 
Coward B
01539 533787
41 Lingarth
Grange Over Sands
 
Stephenson & Sons
01524 761355
66 Silverdale Road
Arnside
 
Msw Builders Ltd
01539 532519
Martinez
Grange Over Sands
 
Woodburn E & Son
01539 536312
Cherry Cottage
Grange Over Sands
 
Hodgson P
01539 552293
Windy Ridge
Grange Over Sands
 
Charlie Bell
01539 559421
16 Main St
Grange Over Sands
 
Acorn Landscapes
01524 702439
7 Stankelt Rd
Carnforth
 

Fallen Arches

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: October 1, 1995

By William G. Bailey

Abstract:

Some residential designers and builders have failed to recognize that all brick arches are structural masonry and must be designed according to structural principals.

Arch Types and Terms
The types of arches most commonly used in residential construction are: jack, segmental, semicircular, and parabolic. Arches typically are classified as "minor" or "major." Minor arches are used to span openings of up to 6 feet and support vertical loads of less than 1,000 pounds per lineal foot. Major arches are those that span more than 6 feet and can support vertical loads greater than 1,000 pounds per lineal foot.

Thrust Loads
Although they carry loads in compression, masonry arches impart horizontal thrust loads at each end or "skewback." The abutments at each side of an arch must be strong enough to resist these loads. Most problems occur in arches that frame into columns. In residential construction arches frame into a column that often consists of a 4x4-inch wood member. Brick are laid merely to enclose the wood column. Such hollow brick columns offer little or no resistance to thrust loads. Various methods can be used to resist thrust loads. When feasible, avoid framing arches into columns and instead place arched openings in walls. Alternatively, increase the strength of columns by increasing their cross section and adding reinforcing steel and grout.

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