A rigid joint connecting the end of a structural member to a support

A slender rod driven through holes in adjacent parts to keep the parts together or to permit them to move in one plane relative to each other

A means for binding a structural member to another or to its foundation, often to resist uplifting and horizontal forces

A point on a structural member at which its reaction to a load is transmitted as a force to a supporting member

A cable anchorage that allows rotation but resists translation only in the direction of the cable

A structural support that allows rotation but resists translation in a direction perpendicular into or away from its face

A structural member permitted to rotate freely about a point of support

A structural connection that allows rotation but resists translation in any direction

A structural connection that maintains the angular relationship between the joined elements, restrains rotation and translation in any direction, and provides both force and moment resistance

Also called hinge joint, pinned connection

Also called fixed joint, fixed connection, rigid connection

The ability of a structure to resist lateral forces without sliding, overturning, buckling, or collapsing

The straining and distortion of a structural frame by lateral forces

A relatively thin, rigid structural member capable of withstanding shear when loaded in a direction parallel to its plane

A structural frame of linear members made rigid by a system of diagonal members

A rigid floor or roof plane acting as a thin, deep beam in transferring lateral forces to vertical shear walls, braced frames, or rigid frames

A vertical diaphragm acting as a thin, deep cantilever beam in transferring lateral loads to the ground foundation

The ability of a structure, when disturbed from a condition of equilibrium by an applied load, to develop internal forces or moments that restore the original condition

An unstable configuration of structural members susceptible to failing or breaking down under an applied load without a change in length of any individual member

A structural element for positioning, supporting, strengthening, or restraining the members of a structural frame

Stabilizing a structural system against lateral forces by means of diagonal or cross bracing

A system of inclined members for bracing the angles between the members of a structural frame and ensuring the lateral stability of the whole

A pair of transverse braces for stabilizing a structural frame against lateral forces

A diagonal member for bracing a structure against lateral forces

A pair of diagonal braces for stabilizing a structural frame against lateral forces, meeting at some point along the length of a member of the frame

A diagonal member for bracing the angle between two joined members, being joined to each partway along its length

A structural system characterized by the symmetrical configuration of mass and lateral force-resisting elements and having no significant discontinuities of stiffness or strength

A structural system consisting of vertical planar elements for supporting gravity loads and shear walls or braced frames for resisting lateral forces

A structural system consisting of three-dimensional array of interconnected linear members that functions as a complete, self-contained unit in supporting gravity loads and shear walls or braced frames for resisting lateral forces

A structural system characterized by any of various plan or vertical irregularities, such as a soft or weak story, a discontinuous shear wall or diaphragm, or the asymmetrical layout of mass or lateral-force resisting elements

Generally require dynamic analysis in order to determine the torsional effects of lateral forces

The asymmetrical layout of mass or lateral force-resisting elements, resulting in non-coincident centers of mass and resistance and causing the story drift at one end of the structure to be more than the average of the story drifts at both ends

The plan configuration of a structure and its lateral force-resisting system having projections beyond a corner significantly greater than the plan dimension in the given direction

Tends to produce differential motions between different portions of the structure, resulting in local stress concentrations at the corner

A joint that physically separates two adjacent building masses so that free vibratory movement in each can occur independently of the other

The centroid of the vertical elements of a lateral force-resisting system, through which the shear reaction to lateral forces acts