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In the stress measuring method of the tower component due to stress release modulo and
In the stress measuring method of the tower component due to stress release modulo and
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机译：在塔构件的应力测量方法中，由于应力释放模和
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摘要
PROBLEM TO BE SOLVED: To readily measure stresses on steel tower members, which are already under stress, by releasing the members from existing stresses with an expansible tool, such as a hydraulic jack or a turnbuckle, and measuring the difference in load or distortion before and after the destressing.;SOLUTION: Along a web member 4 whose lower end is connected to a main pillar material 3 near a foundation 2 of a steel tower 1 structured of angle bars and on which tensile strength is at work, a turnbuckle 6 is disposed, of which one end is fixed to an angle bar fixing jig 7 fixed to the web member 4 and the other end is fixed to the main pillar material 3 via a wire 8; nuts of bolt-nut sets 5 connecting these web member 4 and main pillar material 3 are loosened; and, when the turnbuckle 6 is compressed to make the bolts of the bolt-nut sets 5 turnable, the degree of distortion of the pertinent turnbuckle 6 is measured and converted into a stress according to the pre-studied relationship between the degree of distortion and the stress.;COPYRIGHT: (C)2012,JPO&INPIT
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