Shell Frame | SkyCiv Documentation

Getting Started

Modeling Structures

Applying Loads

Solving the Structure

Post Processing

3D Renderer

Reporting

Verification Models

Shell Frame

Overview

The purpose of this test case is to validate some of the analysis of an asymmetric structure, specifically:

Deflection
Forces/Moments
Linear Analysis

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

Model Setup

The structure is a 53-node, 138-member frame structure supported by fixed supports. The structure is made entirely of steel round diameter 20 sections.

Evaluation points: 10
Solve Type: Linear Analysis (14 iterations)

Analysis Results

Result	Location	SkyCiv	Third Party	Difference
Moment Z	Member 38, Start Node	-0.00184 kN-m	-0.00183 kN-m	-0.54645%
Moment Y	Member 119, End Node	0.00322 kN-m	0.00322 kN-m	0.00000%
Shear Y	Member 49, Start Node	0.09661 kN	0.09662 kN	0.01035%
Shear Z	Member 129, End Node	-0.06816 kN	-0.06816 kN	0.00000%
Reaction Y	Node 51	0.20722 kN	0.20724 kN	-0.04141%
Reaction Y	Node 41	0.83895 kN	0.83890 kN	0.00596%
Deflection X	Node 14	0.02806 mm	0.02806 mm	0.00000%
Deflection Y	Node 22	-0.02224 mm	-0.02224 mm	0.00000%
Rotation Z	Node 47	0.00139 rad	0.00139 rad	0.00000%
Rotation X	Node 84	-0.00129 rad	-0.00129	0.00000%

Result

Location

SkyCiv

Third Party

Difference

Moment Z

Member 38, Start Node

-0.00184 kN-m

-0.00183 kN-m

-0.54645%

Moment Y

Member 119, End Node

0.00322 kN-m

0.00000%

Shear Y

Member 49, Start Node

0.09661 kN

0.09662 kN

0.01035%

Shear Z

Member 129, End Node

-0.06816 kN

0.00000%

Reaction Y

Node 51

0.20722 kN

0.20724 kN

-0.04141%

Reaction Y

Node 41

0.83895 kN

0.83890 kN

0.00596%

Deflection X

Node 14

0.02806 mm

0.00000%

Deflection Y

Node 22

-0.02224 mm

0.00000%

Rotation Z

Node 47

0.00139 rad

0.00000%

Rotation X

Node 84

-0.00129 rad

-0.00129

0.00000%

Result Screenshots

Showing reactions along the y-axis through linear analysis (Plan View)