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Wingwall
| Glossary of Timber Bridge Terminology |
- A wall used to retain the soil behind the abutment.
- Откосное крыло (берегового устоя)
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Cca (chromated copper arsenate), английский
- A water-based wood preservative containing arsenic, chromium and copper which is used to protect against decay, insects and increase the life of the timber. it is a common pressure treatment which ybc uses to increase the overall longevity of your bridge.
- A pesticide that is forced into wood under high pressure to protect it from termites, other wood boring insects, and decay caused by fungus
Live load, английский
- A variable load on a structure (e.g. a bridge) such as moving traffic or pedestrians. it is usually expressed in terms of pounds per square foot. standard loading for york timber bridges are 85 lbs./square foot for pedestrian bridges and 100 lbs./square f
- The total variable weight on a structure. it includes the weights of people, furnishings, snow, wind and earthquake.
- Экипаж и пассажиры
- The moving or movable external load on a structure; includes the weight of furnishings of a building, of the people, of equipment, etc., but does not include wind load.
- Динамическая нагрузка
- In drilling, a variable load suspended on the hoist line.
- In mechanics, a load that is variable, as distinguished from a load that is constant. also called dynamic load. lm bit. a nonstandard 1.406-inch set-outside-diameter bit much used in australia and canada as a noncor-ing bit. it is used with a 1.428- to 1.438-inch set-outside-diameter reaming shell and lm rods. when set as a core bit, the inside diameter is such that it cuts a standard ex-size core. lm rod. an australian and canadian letter name for a nonstandard-size, nonstandard-design drill rod having an outside diameter of 1%6 inches. it is used with xrn bits and shells in blasthole-drilling operations.
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