Anchor recess angle measuring device

Abstract

The invention discloses an anchor recess angle measuring device which comprises a ruler and angle gauges and is characterized in that a convex sliding groove with a bit top and a small bottom is arranged at the upper edge of the ruler, a concave sliding groove with a big top and a small bottom and corresponding to the convex sliding groove arranged on the ruler is arranged at the lower edges of the angle gauges, and the concave sliding groove is combined with the convex sliding groove arranged on the ruler to form a structure that the angle gauges can move on the ruler in sliding mode. The left angle gauge and the right angle gauge are movably arranged on the same ruler in sliding mode and are symmetrical to each other relative to the vertical axis, and a rotatable right-angle pointer is respectively arranged on the central angle of each angle gauge through a pointer shaft. The anchor recess angle measuring device is simple in structure, low in cost, practical and convenient to operate, and solves the problems of complexity in operation and large difficulty in anchor recess angle measuring by using a conventional universal angle ruler. Along with continuous development of national economy and infrastructure construction, more and more bridge engineering projects are needed, use of pre-cast beams is more and more general, and therefore the anchor recess angle measuring device can be widely applied to pre-cast beam anchor recess angle measuring.

Description

technical field [0001] The invention relates to a measuring instrument, especially an anchor hole angle measuring instrument. Background technique [0002] In bridge construction, most of the post-tensioned beams are equipped with anchor holes, and the angle of the anchor hole formwork directly affects the stress angle of the prestressed tendons in the prefabricated beam, thus affecting the prestress applied to the beam body. . During the bridge certification process, the angle of the anchor hole template is a must-check item for on-site inspection, internal inspection and on-site measurement. At the same time, the anchor hole measurement equipment is an important part of the necessary measurement equipment for certification (one of the eight veto items in the certification rules). . [0003] In order to strictly control the prestress, the accuracy of the angle of the anchor hole formwork must be specially controlled during beam formwork processing. When using a conv...

AI Technical Summary

Problems solved by technology

When using a conventional universal angle gauge to measure the angle of the anchor hole of the beam formwork, auxiliary measuring tools are needed, the assembly is more complicated, the operation process is also more cumbersome, and the universal angle gauge is expensive

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