Experimental device for concrete multifactor permanent stability under co-action of pulling stress and surroundings
A technology that works together and is an experimental device. It is used in measuring devices, strength characteristics, and material inspection products. It can solve the problems of difficult coincidence, damage at the clamping place, and easy eccentricity. Accurate geometric dimensions, small occupied volume, No stress relaxation effect
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[0034] The present invention will be further described below in conjunction with accompanying drawing:
[0035]The device includes: spherical screw 1, nut 2, stress sensor 3, limit plate 4, spring 5, lock nut 6, upper pull plate 7, pull rod 8, tensile chuck, dumbbell-shaped concrete specimen 10, constant Force clamping instrument 11, spherical pull rod 12, pull-down plate 13, non-metallic ultrasonic tester 14; in this device, the lower part of pull rod 8 is connected with pull-down plate 13, and the upper part of pull rod 8 passes through upper pull plate 7 and limit plate 4 , the upper pull plate 7 is worn on the pull rod 8 and fixed by the lock nut 6, the nut 2 presses the stress sensor 3 on the limit plate 4 through the spherical screw 1, the spring 5 is set on the spherical screw 1 and is located on the limit plate 4 Between the upper drawing plate 7 and the upper drawing plate 7 and the lower plate 13, an upper drawing chuck 91 and a lower drawing chuck 92 are arranged, a...
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