1 Joint Coordinates
2 Support Constraints
| Joint | Condition |
|---|
| 1 (base left) | |
| 4 (base right) | |
Joints 2 and 3 are free (internal joints). Members: 1→2, 2→3, 3→4.
4 Loading
4.1 Joint Loads
4.2 Distributed Loads on Members
5 Support Reactions
| Joint | Rx (kN) | Ry (kN) | Mz (kN·m) |
|---|
| 1 | — | — | — |
| 4 | — | — | — |
6 Member End Forces
| Mbr | Joint | Axial (kN) | Shear (kN) | Moment (kN·m) |
|---|
| 1 | 1 | — | — | — |
| 2 | — | — | — |
| 2 | 2 | — | — | — |
| 3 | — | — | — |
| 3 | 4 | — | — | — |
| 3 | — | — | — |
7 Maximum Moments per Member
| Mbr | Type | M (kN·m) | Location (m) |
|---|
| 1 | +M(max) | — | — |
| −M(max) | — | — |
| 2 | +M(max) | — | — |
| −M(max) | — | — |
| 3 | +M(max) | — | — |
| −M(max) | — | — |
8 Joint Displacements
| Joint | Dx (mm) | Dy (mm) | θz (rad) | θz (deg) |
|---|
| 1 | — | — | — | — |
| 2 | — | — | — | — |
| 3 | — | — | — | — |
| 4 | — | — | — | — |
9 Bending Moment Diagram
Maximum Absolute Moment
— kN·m
Reference: Matrix Structural Analysis — Direct Stiffness Method for 2D Rigid Frames