ACI 530-05 Building Code Requirements for Masonry Structures

ACI 530-05 Building Code Requirements for Masonry Structures. Tendon coupler – A device for connecting two tendon ends, thereby transferring the prestressing force from end to end. Tendon jacking force — Temporary force exerted by a device that introduces tension into prestressing tendons. Thin-bed mortar Mortar for use in construction of AAC unit masonry whose joints are 0.06 m. (1.5 mm) or less. Tie, lateral — Loop of reinforcing bar or wire enclosing longitudinal reinforcement. Tie, wall – Metal connector that connects wythes of masonry walls together. Transfer — Act of applying to the masonry member the force in the prestressing tendons. Transverse reinforcement Reinforcement placed perpendicular to the axis of the member. Unbonded prestressing tendon Prestressing tendon that is not bonded to masonry. Unreinforced (plain) masonry Masonry in which the tensile resistance of masonry is taken into consideration and the resistance of the reinforcing steel, if present, is neglected. Veneer, adhered — Masonry veneer secured to and supported by the backing through adhesion. Veneer, anchored — Masonry veneer secured to and supported laterally by the backing through anchors and supported vertically by the foundation or other structural elements. Veneer, masonry — A masonry wythe that provides the exterior finish of a wall system and transfers out-of- plane load directly to a backing, but is not considered to add load resisting capacity to the wall system. Wall — A vertical element with a horizontal length to thickness ratio greater than 3, used to enclose space. Wall, loadbearmg — Wall carrying vertical loads greater than 200 lb/lineal ft (2919 N/rn) in addition to its own weight. Wall, masonry bonded hollow A multiwythe wall built with masonry units arranged to provide an air space between the wythes and with the wythes bonded together with masonry units. 1.13一Details of reinforcement and metal accessories 1.13.1 Embedment Reinforcing bars shall be embedded in grout. 1.13.2 Size ofreinforcement 1.13.2.1 The maximum size of reinforcement used in masonry shall be No.11 (M #36). 1.13.2.2 The diameter of reinforcement shall not exceed one-half the least clear dimension of the cell, bond beam, or collar joint in which it is placed. (See Section 1.16.1) 1.13.2.3 Longitudinal and cross wires of joint reinforcement shall have a minimum wire size of W1.1 (MW7) and a maximum wire size of one-half the joint thickness. 1.13.3 Placement of reinforcement 1.13.3.1 The clear distance between parallel bars shall not be less than the nominal...