Verification Model

Timber Barn Frame

Overview

The purpose of this test case is to validate some of the analysis of a structure with custom sections with the inclusion of shear area in the analysis, specifically:

Deflection
Forces/Moments
Linear Analysis with Shear Area

The Structural 3D results were compared against a third-party analysis software.

Model Setup

The structure is a 46-node, 108-member frame structure supported by fixed supports. The building consists of timber sections from the NDS catalogue for Sawn Lumber. The sections are comprised of the default Oakwood properties as provided in Structural 3D.

Evaluation points: 10
Solve Type: Linear Analysis

Analysis Results

Result	Location	SkyCiv	Third Party	Difference
Moment Z	Member 403, End Node	11.23510 kip-ft	11.23542 kip-ft	-0.0028%
Moment Y	Member 205, Start Node	0.04080 kip-ft	0.04081 kip-ft	-0.0245%
Shear Y	Member 201, Start Node	0.10824 kip	0.10825 kip	-0.00924%
Shear Z	Member 304, Start Node	-0.00441 kip	-0.00441 kip	0.00000%
Reaction Y	Node 11	4.92805 kip	4.92806 kip	0.00000%
Reaction Y	Node 2	2.54242 kip	2.54242 kip	0.00000%
Deflection X	Node 6	0.01830 in	0.01830 in	0.00000%
Deflection Y	Node 17	-0.02282 in	-0.02282 in	0.00000%
Rotation Z	Node 19	0.00118 rad	0.00118 rad	0.00000%
Rotation X	Node 40	0.01398 rad	0.01398	0.00000%

Result Screenshots

Showing global deflection results in the Y without Shear Area

Showing global deflection results in the Y with Shear Area