# Cross Frame Code Check T \[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.

## Fatigue Parameters

**ADTT:** The annual daily truck traffic is a parameter used in fatigue checks.\
**Number of Lanes Available to Trucks:** Number of lanes available to truck is a parameter used in fatigue checks.

**Additional Load Factor For Fatigue:** The fatigue load obtained from the analysis can be further reduced by applying this property.\
As suggested in NCHRP Report No. 962: *Proposed Modification to AASHTO Cross-Frame Analysis and Design*, the Fatigue I and Fatigue II load factors should be multiplied by an additional factor of 0.65.

**Detail Category (Table 6.6.1.2.3-1)\[Category-A/Category-B/Category-B'/Category-C/Category-C'**/**Category-D**/**Category-E/Category-E']:** The Detailed Category for fatigue calculations is selected using this parameter.

## Tensile Resistance Parameters

**Rp Reduction Factor for Holes \[1.0 for Holes Drilled Full Size/ 0.9 for Holes Punched Full Size]:** For code check purposes, this parameter allows the specification of a reduction factor. The factor can be set to 1.0 for drilled full-size holes or 0.9 for punched full-size holes.

## **Unbraced Length Settings**

**Top Strut Unbraced Length \[Full Length/Half Length]:** This input controls the effective unbraced length used in the code check calculation for the top strut of the cross frame. By default, the length is set to 'Full Length'. Selecting 'Half Length' allows the user to specify that the top strut's unbraced length should be considered half (1/2) of its calculated length, often used in specific design scenarios.

**Bottom Strut Unbraced Length \[Full Length/Half Length]:** This input controls the effective unbraced length used in the code check calculation for the bottom strut of the cross frame. By default, the length is set to 'Full Length'. Selecting 'Half Length' allows the user to specify that the bottom strut's unbraced length should be considered half (1/2) of its calculated length, often used in specific design scenarios.


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