| 单词 | contraction joint |
| 释义 | > as lemmascontraction joint contraction joint n. a joint in a concrete structure to prevent cracking during setting; a joint in any structure or material to prevent damage as a result of thermal expansion and contraction. ΘΚΠ society > occupation and work > industry > building or constructing > building or providing with specific parts > specific parts built or constructed > [noun] > joint > types of gemew?a1400 match-joint1683 matched joint1688 joggle1703 water joint1810 pin-joint1835 shackle-joint1837 screw shackle1847 through-joint1851 joggling1858 leg joint1858 splice1875 bed-joint1876 butting joint1887 saddle joint1901 contraction joint1909 1909 F. W. Taylor & S. E. Thompson Treat. Concrete (ed. 2) xv. 286 Contraction in concrete walls is provided for by forming joints at intervals... As a rule only contraction joints need be provided, since expansion merely compresses the concrete. 1950 H. J. Gilkey in L. C. Urquhart Civil Engin. Handbk. (ed. 3) vii. 646 In pavement construction, contraction joints are commonly spaced between ‘expansion’ joints at about one-third the expansion-joint interval. 1958 J. S. Scott Dict. Civil Engin. 80 Contraction joint (C.E.) or shrinkage joint or expansion joint, a break in a structure usually made to allow for drying and temperature shrinkage of concrete or masonry and thus to prevent cracks forming at undesirable places. < as lemmas |
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