Fallen Arches Barrow-in-Furness

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

Leck Construction
01229 820394
Leck House
Barrow in Furness
 
Handyman
01229 470035
10 Leopard Street
Barrow in Furness
 
Builders A M C
01229 823086
13 Cheltenham St
Barrow in Furness
 
Britannia Construction Cumbria
01229 811601
Unit 54 Furness Business Park
Barrow in Furness
 
T.p Mcnulty Construction Ltd
01229 832386
19 The Crescent
Barrow in Furness
 
Neil Martin N
01229 813428
Sowerby Wood Business Park
Barrow in Furness
 
A.m.c Builders
01229 823337
13 Cheltenham Street
Barrow in Furness
 
Bob Evans Builder
01229 433466
18 Hempland Avenue
Barrow in Furness
 
Neil Price Limited
01229 839966
Sowerby Woods Business Park
Barrow in Furness
 
Bryn Clark Building And Roofing
01229 825555
Daveys Yard
Barrow in Furness
 

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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