Screens and sizes local reinforcement for existing open-web steel joists under revised point loads, drift, RTUs, and force increases.
Check and design local reinforcement for existing open web steel joists subject to revised point loads, drift loads, RTUs, and member force increases. Computes factored/service line loads, simple-span moment and shear, point-load moment and reactions, chord force (M/d), web force (V/sinθ), CSA S16 style tension/compression/moment resistances, combined axial+bending utilization, a conservative fillet weld force-transfer screen, and a constructability checklist.
Screening / preliminary aid only - does NOT replace engineering judgement. Simple-span gravity model; composite action between existing member and reinforcement is never assumed unless the engineer confirms a connection/battening assumption (and then a review warning is raised). Weld module is a conservative single-strength fillet screen; verify directional strength and detailing.
Local chord bending uses a user-selected local span and end-condition factor and always requires review. Existing member sizes, steel grade, and weld access must be field verified.
Use for preliminary screening of local joist reinforcement. Every output remains in an 'Engineer review required' state until reviewed and sealed by a qualified engineer.
Other design checker in the same workspace.
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Every tool ships inside the CoLateral desktop workspace, so a result can stay attached to the project, the drawing, and the review trail it belongs to instead of ending up in a loose spreadsheet.
Outputs are design aids and stay in draft until a qualified engineer reviews and approves them.