EDUCATIONAL APPLIANCE FOR DEMONSTRATION PURPOSES ON BUILDING STRUCTURES

摘要

Use of: in the learning process to demonstrate the features of the bending joist but the split-frame statically determinate and statically indeterminate systems highway bridges under the action time of moving loads. The aim of the invention is to expand the functionality of illustration by road construction and operation of beam bridges. INVENTION SUMMARY: pictorial guide consisting of a pattern of beams, on the lateral surface of which is applied checker grid, means the stress and registering beam deformations comprising modeIzobretenie relates to training devices for demonstrating features of bending girder split statically determinate and frame statically indeterminate systems highway bridges temporary mobile under the action of loads and may be used in the learning process in the higher and secondary educational institutions x. Known apparatus for the study of work a thin-walled curved Brule two beams of different profiles, checkered grid demonstration side surfaces formed as deaf conical recesses in the body of the beam, the axis of which are connected by horizontal and vertical risk illustrating band tension and compression, the number of horizontal scratches zones stretching and compression of the fibers of each beam are identical and one risk coincides with the neutral line layer, and the three supports to be mounted slotted girder statically opredelimog a frame or statically indeterminate bridges with models mi their technological and operational defects. Attaching various bridges profiles are in the form of magnetic fastener and the stress means are in the form of models of vehicles, the bottom of each of which is provided with a hook hung on it load simulating the weight of the vehicle. Model cars are installed with the same pitch on the outermost portion of the beam. Structural elements are color indication. 5 yl. meat, consisting of a timber, and the movable support cargo in the form of trolleys simulating temporal movable load lever strain gauges. A disadvantage of this setup is that it does not allow to demonstrate the design and operation of road bridges. A device demonstrs tion bending rod consisting of the rod, fixed to the concentration solo osnopanii and fe% U 3 O 1