System Overview

This apparatus enables in-depth investigation of the structural behavior of a fixed arch, focusing on horizontal reactions, fixing moments, and the effects of various loading conditions. Integrated with the Structures platform, it supports computer-based data acquisition and display, offering high-accuracy, real-time measurements for both educational and research applications.

Learning Outcomes

• Calculation of Horizontal Reactions and Fixing Moments under:

  • Varying single point loads

  • Moving single point loads

  • Uniformly distributed loads (UDLs)

• Influence Lines and Superposition:

  • Construct and interpret influence lines

  • Apply superposition to analyze multiple load scenarios

• Thrust Line Analysis:

  • Study the lines of thrust in a fixed arch structure

• Secant Assumption:

  • Understand and apply the Secant assumption in arch analysis

• Bending Moment Diagrams:

  • Graphically construct and interpret bending moment diagrams under point loads

  • Identify maximum bending moments within the arch

Included Components

• Two Arch Supports

  • Designed to hold a rigid arch (Span: 0.5 m, Height: 0.1 m)

• Nine Mass Hangers

• Fifty Precision Masses (20 g each)

• Two Connecting Cables

• Storage Tray for organized component management

• Comprehensive User Guide

  • Includes detailed theoretical background and step-by-step experimental procedures

Applications

This apparatus is ideal for exploring the complexities of statically indeterminate structures, with a focus on fixed arches. It supports advanced structural mechanics courses and enables students to visualize load paths, internal forces, and arch behavior through hands-on experimentation and real-time data analysis.