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METHOD Experimental determination of static and dynamic charts CONCRETE AND STRENGTHENING OF CONCRETE FACTOR DYNAMIC WITH REGARD cracking
METHOD Experimental determination of static and dynamic charts CONCRETE AND STRENGTHENING OF CONCRETE FACTOR DYNAMIC WITH REGARD cracking
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机译:方法静态和动态图表的实验确定混凝土并考虑裂纹强化的动态因素。
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摘要
FIELD: construction.;SUBSTANCE: method is realised by fixation of an experimental concrete sample in the form of a prism between bearing plates of a test bench using a centring device, providing for central application of a compressing load in process of loading, and registration of a force and deformation of a prism in time using a dynamometer and a strain station with loading, realised through a lever system in two stages: at the first stage - stepped static loading of a sample to the required level in different shares of the crack formation load by means of laying of unit weights onto a loading platform, at the second stage - instantaneous or stepped dynamic additional loading with a weight dropping during reduction of current force in an electromagnet, the axis of the centre of gravity of which matches with the axis of the loading platform.;EFFECT: increased reliability of tests.;2 dwg
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