Mechanical · M-Z594Y

Round Beam Web Opening

Elements

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A round penetration passes through the web of a steel beam subject to specific dimensional limits and reinforcement requirements. A schedule 40 pipe sleeve matching the beam flange width is installed where required, attached with one-quarter inch fillet welds on each side of the web. The opening diameter is limited to a maximum of one-third of the beam depth, positioned within an allowable zone extending up to a span divided by six from the centerline. Reinforcing is omitted when the round opening diameter is one-sixth of the beam depth or less. Unshown penetrations require contractor submittal and structural engineer of record approval.

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