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The main beam supporting the roof system. |
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A track supporting and guiding the wheels of a bridge crane or trolley system. On underhung cranes, the crane rail also acts as the runway beam. See also Crane Rail. |
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The horizontal stiffening members of framed and paneled doors. |
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The intersection of the plane of the roof and the plane of the endwall. |
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Angle fastened to purlins at rake for attachment of endwall panels. |
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A flashing designed to close the opening between the roof and endwall panels. |
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The maximum load (usually in tons) which the crane is designed to support safely. |
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The resisting forces at the column bases holding the structure in equilibrium under a given loading condition. |
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The steel placed in concrete as required to carry the tension, compression and shear stresses. |
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A crane controlled by an operator not in a pulpit or in the cab attached to the crane, by any method other than pendant or rope control. |
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The placing of new metal roof or wall systems over deteriorated roofs or walls. |
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The longitudinal raised profile of a panel that provides much of the panel's bending strength. |
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A panel which has ribs with sloping sides and forms a trapezoidal shaped void at the side lap. |
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The horizontal line formed by opposing sloping sides of a roof running parallel with the building length. |
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A transition of the roofing materials along the ridge of a roof, sometimes called ridge roll or ridge flashing. |
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A connection designed to transfer moment as well as axial and shear forces between connecting members. Also referred to as Moment Connection. |
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A structural frame consisting of members joined together with moment connections so as to render the frame stable with respect to the design loads, without the need for bracing in its plane. |
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Doors that are supported at the bottom on wheels which run on a track. |
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A door that opens by traveling vertically. |
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The exposed exterior roof surface consisting of panels. |
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Loads that are produced (1) during maintenance by workers, equipment, and materials, and (2) during the life of the structure by movable objects and do not include wind, snow, seismic or dead loads. |
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A roof extension beyond the end wall or side wall of a building. |
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The tangent of the angle that a roof surface makes with the horizontal, usually expressed in units of vertical rise to 12 units of horizontal run. |
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That load induced by the weight of snow on the roof of the structure. Usually obtained by taking a fraction of the "Ground Snow Load'. |
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Any material which is used to seal cracks, joints or laps. Also referred to as Sealant, Caulk or Mastic. |
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The member that supports a crane rail and is supported by columns or rafters depending on the type of crane system. On underhung bridge cranes, the runway beam also acts as the crane rail. |
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A bracket attached to the column of a building frame which supports the runway beam for top-running cranes. |
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The main conductors mounted on or parallel to the runway which supplies electric current to the crane. |
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