Inner Corner at Base of Wall Amsterdam NY

The concrete masonry can be connected to the corner column with a debonded shear anchor. This type of anchor resists out-of-plane (but not in-plane) shear forces and permits movement between the steel column and concrete masonry.

Local Companies

All-Isle Masons Inc
(516) 759-1818
98 Baldwin Ave
Locust Valley, NY
Schneid Construction
(315) 479-9004
210 6th St
Syracuse, NY
D'aprile Inc
(516) 783-1393
1907 Bellmore Ave
North Bellmore, NY
Natale Masonry Inc
(518) 348-0303

Rexford, NY
Northwoods Concrete
(518) 494-0138

Chestertown, NY
Rizzo J M & Son Inc
(914) 666-5675
364 Adams St
Bedford Hills, NY
Mazzaferro Rocco Constr
(718) 241-6880
2330 E 74th Heights St
Brooklyn, NY
Cornell Masonry
(315) 387-2899
210 Caster Rd
Sandy Creek, NY
Baxter Tracy A
(315) 379-0866
34 W Main St
Canton, NY
Wolper Bros Contracting
(631) 289-1016
411 Long Island Ave
Medford, NY

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: September 1, 2006

By Walter A. Laska

It is difficult for a mason to properly tool mortar joints at inner wall corners due to the size and shape of the jointer and the acute angle formed by the intersecting brick. As a result, the mortar joints at this location cannot be tooled neatly or compactly. Therefore, inner wall corners provide an ideal location for expansion joints.

Expansion joints located at inner corners are easy to construct and are well concealed. The expansion joint should be totally void of any material which might inhibit movement, and the reinforcement must be discontinuous at the expansion joint.

The concrete masonry can be connected to the corner column with a debonded shear anchor. This type of anchor resists out-of-plane (but not in-plane) shear forces and permits movement between the steel column and concrete masonry. Also, the connection creates a control joint in the concrete masonry backing along the column interface.
Elevation View

The space between the column and the concrete masonry should be kept free of all mortar bridging. If the column and concrete masonry are tightly bonded, any movement of the column is transferred to the masonry, possibly causing the concrete masonry backing to crack.

Flashing continuity must be maintained at the inner corners. The flashing should be cut, lapped, and set in a continuous bed of mastic to prevent water from flowing under the laps.

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