Description
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Elastically Coupled Beam Apparatus
Apparatus consists of a three parallel bar suspension system with elastic beam at their upper and lower ends. The upper ends of the two outer suspension rods are tied to a vertical wooden board while central suspension rod may be tied to the centre of another elastic beam supported at two outer ends only. Mild steel Apparatus to be supplied should be complete with a supporting stand and a set of weights.
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Unsymmetrical Bending Apparatus
DESCRIPTION:
Apparatus consist of an angle of size 1” x 1” x 1/8” or in equivalent metric units of length 80cm is tied as a cantilever beam. The beam is fixed at one end such that the rotation of 450 intervals can be given and clamped such that the principal axis of its cross-section may be inclined at any angle with the horizontal and vertical planes. Also arrangement is provided to apply vertical load at the free end of the cantilever and to measure horizontal and vertical deflection of the free end. A dial gauge with magnetic base is supplied with the apparatus.EXPERIMENT MANUAL:
• To study the behavior of a cantilever beam under symmetrical and unsymmetrical bending. • Using a Dial gauge shown a increasing and decreasing of heights.
Curved Member Apparatus
Apparatus consists of a steel bar which is used to make the different curved members Viz. circle, semicircle with straight arm, a quadrant of a circle and quadrant of a circle with straight arm. The bottom ends of the members are fixed to the base. Under the application of load at free end, its horizontal and vertical deflection can be measured with the help of dial gauges. A dial gauge with 25mm travel (with a magnetic base) is supplied with the apparatus. Apparatus to be supplied should be complete with a supporting stand and a set of weights.
Experimental Capabilities: Apparatus is supplied complete with a supporting stand and a set of weights.
Redundant Joint Apparatus
Apparatus consists of three suspension members (spring balances) of different stiffness, which are jointed at a point to form the redundant joint. The upper end of the suspension members being tied in a position to a vertical wooden board. Arrangement is provided to apply a vertical load at the joint and to measure its horizontal and vertical displacement on a paper and also elongations and forces in the suspension members by the help of dial gauges. Dial gauges with magnetic base are provided with the apparatus.
EXPERIMENT:
Comparison of experimental and theoretical results of forces in the members and the component displacement of the loaded joint D of a three bar suspension system for vertical loads.REQUIRED ACCESSORIES:
• Redundant Joint Apparatus • Dial Gauge : 1 No. • Magnetic Base : 1 No. • Hangers : 1 Nos. • Weight of 500gm : As Per requirement.
Torsion Of Rods Apparatus
INTRODUCTION:
A torsion test is quite instrumental in determining the value of modulus of rigidity of a metallic specimen. The value of modulus of rigidity can be found out thought observations made during the experiment by using the torsion equation.APPARATUS:
1. A torsion testing machine. 2. Twist meter for measuring angles of twist 3. A steel rule and Vernier Caliper or micrometer
Shear Centre Apparatus
Apparatus consists of sturdy base frame and Channel, Equal angle, Semicircle and Z-Section are supplied with apparatus. Standard length of each of the four sections in M. S. is supplied. Each is provided with end clamp for fixing to the rigid bracket. A special load hanger is provided so as to change the load position so that with the help of two dial-gauges, the vertical plane of Shear-centre for the particular section can be determined.
RANGE OF EXPERIMENTS:
1. Determination of the vertical plane of shear center for different cross sections commonly used for structures
Suspension Bridge Apparatus
DESCRIPTION:
Cables are frequently used to support loads over large spans such as cable stayed for suspension bridges, cable car systems and stadium roof. They are used extensively for permanent guys on structures such as microwave towers and derricks. They are also used for temporary guys during erection. The only force in a cable is direct tension. They are too flexible to carry any moment. A cable is used to carry concentrated loads, uniformly distributed load along its length and uniformly distributed load along the horizontal span. It takes the shape of a polygon under concentrated loads, a catenary under uniform load along its length (such as its own weight), and a parabola under uniform load along the horizontal span.EXPERIMENT:
• Study the Extension of each spring Balance Left & Right Both. • Study of the effect of a point loadTECHNICAL SPECIFICATION:
• Apparatus Consists of two mild steel cables 0.5cm diameter in cross section and 150cm long, pinned to two supports 90cm apart situated symmetrically. • One of the ends can be converted to a roller by applying a known load at the end with the help of suspended pulley system. • Vertical loads can be applied at various points along the span of the beam. • A dial gauge with 25mm travel (with a magnetic base) is to be supplied with the apparatus complete with a supporting stand and a set of weights.
Portal Frame Apparatus
DESCRIPTION:
Portal Frames used for the measurement of horizontal reaction are made stiffer by using M. S. flats rectangular cross section (10mm thick and 40mm wide). All are true to shape. The ends can be other fixed of hinged as desired. The end at which horizontal reaction, is to be measured, is provided with ball bearing rollers, which easily rolls on a smooth rolling platform. At the roller end a chord is attached which is connected further to spring balance. The spring balance records the horizontal reaction, for the measurement of slope and deflection. Both the columns of the portal frame can be clamped (fixed) or pivoted (hinged) and required.EXPERIMENT:
• To study the behavior of a portal frame under different end conditions.TECHNICAL SPECIFICATION:
• Apparatus made up of M.S. plate of rectangular section of 3mm thick x 40cm wide. • Frame is provided with a provision to achieve different end conditions viz. hinged, roller & fixed. • The size of portal will be 40cm x 60cm. Portal may also have a provision for pulley arrangement and hook arrangement for horizontal loading at different positions. • Apparatus is to be supplied complete with a supporting stand and a set of weights • Electronic load cells, displacement cell and Electronic Control Unit (ECU) provided with apparatus. • Software for digital calculations to easily performs by students.OPTIONAL ACCESSORIES:
• PC/Laptop Set.
Behaviour Of Column Struts Apparatus
Apparatus consist of four spring steel columns which are put along a vertical wooden board. These four columns have different end conditions as below:
1. Both ends pinned
2. Both ends fixed
3. One end pinned and other fixed
4. One end fixed and other end free
Apparatus to be supplied should be complete with a supporting stand and a set of weights.
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