What is a pilaster wall?
Masonry pilaster wall consist of pilaster, which is rectangular projectile column constructed of masonry blocks in the face of the wall and provide extra strength to the wall, filler wall, and foundation. The pilaster is cantilevered up from the foundation and built at determine interval along the wall length.
What are the advantages of using pilasters?
Where these loads are high or walls are especially tall, the use of pilasters may be advantageous to allow thinner wall sections. A pilaster is a strengthened section that is designed to provide lateral stability to the masonry wall. Pilasters can be the same thickness as the wall but most often project beyond one or both wall faces.
What is the size of a pilaster filler?
Filler is masonry units that spanned horizontally between pilasters. By and large, dimensions of pilaster might be 40.64 cm width x 40.64 cm length. Moreover, using spaced pilaster with masonry block filler might be an economical option for freestanding wall or low height retaining walls.
What is the diameter of a masonry pilaster?
Furthermore, vertical reinforcement is 13 mm diameter at spacing of around 81 mm or 122 mm. A masonry pilaster is a uniform vertical member cross section built as an integral part of a wall that may function as either a vertical beam or a column or both and it is considerably influential in increasing masonry wall capacity.
What is a pilaster wall?
Masonry pilaster wall consist of pilaster, which is rectangular projectile column constructed of masonry blocks in the face of the wall and provide extra strength to the wall, filler wall, and foundation. The pilaster is cantilevered up from the foundation and built at determine interval along the wall length.
How are pilasters built?
Pilasters could be built by assembling standard configuration masonry units. However, there are different types of special units that manufacture specifically for pilaster construction. There are number of advantages which might be achieved by using special units such as ease of construction, providing more space for reinforcements, and avoiding threading of block over reinforcements. The availability of special units should be checked with suppliers when considering special unit pilasters. Figure-3 shows number of special masonry units.
How wide is a pilaster?
Filler is masonry units that spanned horizontally between pilasters. By and large, dimensions of pilaster might be 40.64 cm width x 40.64 cm length.
Where is reinforcement needed for filler wall?
However, for practical and economical reasons, reinforcements can be installed at the wall center as per either controlling positive moment at the middle of the span or negative moment at the pilasters.
Is a pilaster foundation rectangular?
For filler wall, nominal footing is adequate and this type of foundation is employed solely but pilaster foundation could be either conventional rectangular footing or cast in place piers in drilled holes. Detailed design of these foundation types will be included in other article.
What is a pilaster?
: an upright architectural member that is rectangular in plan and is structurally a pier but architecturally treated as a column and that usually projects a third of its width or less from the wall.
What is a pilaster column?
English Language Learners Definition of pilaster. : a rectangular column that is attached to a wall and that is used for decoration or support. See the full definition for pilaster in the English Language Learners Dictionary.
Why use pilasters in masonry?
A pilaster is a strengthened section that is designed to provide lateral stability to the masonry wall.
What is pilaster spacing?
Pilaster spacing is a function of the wall thickness, the magnitude of lateral loads, and the distribution of the lateral load to the vertical and horizontal supports. A relationship exists between the ratio of pilaster spacing to wall height and load distribution. Figures illustrating this relationship are available in Designing Concrete Masonry Walls For Wind Loads (ref. 3). Once the wall panel dimensions have been determined, the lateral load which must be resisted by the pilasters may be calculated as follows:
How many bars are in a 16x16 pilaster?
From Table 1, choose a 16 x 16 in. (406 x 406 mm) pilaster reinforced with four #5 bars.
What are the benefits of concrete walls?
Concrete masonry walls provide benefits such as structural integrity, fire resistance, thermal insulation and mass, low maintenance, and an aesthetic versatility unmatched by any other single building material.
Do pilasters have to be flexural?
DESIGN. Typically, pilasters are subject to little or no vertical load other than their own weight, and as such serve as flexural members. Pilasters required in this type of service must be able to resist bending while transferring the applied loads from the walls to the roof and foundation system.
Is a pilaster bonded or unbonded?
A bonded pilaster may be constructed as an integral part of the wall or, where provisions for crack control are provided such as with control joints, they may be constructed as an unbonded structural member where lateral support is provided through the use of suitable connections.