> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/templates/steel-i-girder-bridge-workflow/templates-for-code-check-and-load-rating-sig/bolted-gusset-plate-code-check-t-sig.md). # Bolted Gusset Plate Code Check \[SIG] ## General **Load Combination Table:** The load combination table is used to map the analysis result cases and their corresponding factors to the template, along with the limit states. It serves as the basis for all finite element analysis results used in the code check equations. **Ignore the moment of the Bolt COG \[Yes/No]:** This parameter is used to ignore the moment about the bolt's center of gravity (COG). **Design basis for the gusset plate \[Truss Gusset (6.14.2.8)/Connection Element (6.13.5)]:** Selects the AASHTO provision the gusset plate is designed against. * **Truss Gusset (6.14.2.8)** — the default. The plate is treated as a truss gusset plate per Article 6.14.2.8. Shear yielding uses Eq. 6.14.2.8.3-1 with the shear reduction factor Ω = 0.88 and φ\_vy = 0.80, and the minimum plate thickness follows the 0.375 in. requirement for gusset plates used in trusses (Article 6.7.3). * **Connection Element (6.13.5)** — the plate is treated as a general connection element per Article 6.13.5. Shear yielding uses Eq. 6.13.5.3-1 (φ\_v = 1.00, no Ω factor), and the minimum plate thickness requirement drops to 0.3125 in. The two options differ in exactly two checks: **shear yielding** (the truss basis applies Ω = 0.88 and φ\_vy = 0.80, giving a lower resistance; the connection basis omits Ω and uses φ\_v = 1.00) and the **minimum plate thickness** limit (0.375 in. vs 0.3125 in.). All other checks — shear rupture, tensile yielding/fracture, block shear rupture, compressive resistance (Whitmore section per 6.14.2.8.4), edge slenderness, and all bolt checks — are unchanged by this selection. Use **Connection Element (6.13.5)** for gusset plates that are not part of a truss (for example, cross-frame connection plates), where the Ω = 0.88 truss shear-reduction factor is not applicable. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.openbrim.org/templates/steel-i-girder-bridge-workflow/templates-for-code-check-and-load-rating-sig/bolted-gusset-plate-code-check-t-sig.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.