SV403 – Three-Pinned Arch

 

SV403 – Three-Pinned Arch

The experiment Three Hinge Arch allows the experimental investigation of the horizontal thrust observed when loads are applied to an arch with hinges at each end as well as at the peak of the arch. The measurements taken can then also be used to validate calculated values for the horizontal thrust found using the static equilibrium equations.

This experiment has the following properties:

  • Ability to show mechanical principles of three hinged arches
  • Point loads, uniformly distributed loads (UDL) and rolling loads can be applied to the arch
  • Pivoting support capable of measuring horizontal thrust

Software Included as standard

Description

The arch is comprised of two half sections that meet in the middle with a roller bearing to simulate the central hinge. When assembled the arch sections form the three hinge arch with a flat horizontal plane for the different loads to be applied over the span of the arch.

The two arch sections are clamped to the supports which simulate a pinned support at each end of the arch. The supports don’t allow any horizontal or vertical movement but allow the supports to rotate. One of the supports constrains the frame horizontally by a load cell.

This allows the horizontal thrust at that support to be measured.

Technical Specifications

  • 1 x Three Hinge Arch Left Section
  • 1 x Three Hinge Arch Right Section
  • Arch Span: 500mm
  • Arch Rise: 100mm
  • 2 x 500g Weight Hangers
  • 5 x UDL Masses
  • UDL Mass: 310g
  • UDL Mass Per Unit Length: 3.1g/mm
  • 1 x Rolling Mass
  • Rolling Mass: 810g
  • 1x Instrument Level
  • Load Cell Force Range: 0–17.6N

Features & Benefits

  • Ability to show mechanical principles of three hinged arches
  • Point loads, UDLs (uniformly distributed loads) and rolling loads can be applied to the arch
  • Pivoting support capable of measuring horizontal thrust

Downloads

  • Relationship between applied loads and horizontal reaction force (thrust)
  • Comparison between theory and experimental results
  • Horizontal reaction force influence lines
  • Uniform Distributed loads (UDL), Point Loads and Moving Loads

  • Uniformly Distributed Loads (UDL)
  • Point Loads
  • Horizontal Reaction
  • Influence Lines

  • Storage temperature: -10°C to +70°C
  • Operating temperature range: +10°C to +50°C
  • Operating relative humidity range: 0 to 95%, non-condensing

  • SV100: Bench Mounted Frame
  • SV101: Structures Interface Unit
  • SV102: Pinned Supports Kit

Electrical supply:

110/120V, 60Hz
220/240V, 50Hz

  • SV100: Bench Mounted Frame
  • SV101: Structures Interface Unit
  • SV102: Pinned Supports Kit
  • PC with a USB port, running Windows 7 or above

PACKED AND CRATED SHIPPING SPECIFICATIONS

Volume: 0.1m³
Gross Weight: 25kg

Length: 1.176m

Width: 0.392m

Height: 0.922m

  • SV403: Three-Pinned Arch
  • SV100: Bench Mounted Frame (Sold separately)
  • SV101: Structures Interface Unit (Sold separately)
  • SV102: Pinned Supports Kit (Sold separately)

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