1. anti-blocking type
the Guardrail and posts are connected by anti-blocking blocks. The standard is 196 * 178 * 200 * 4.5 mm. In general, Class A expressways all use this kind of connection method, which is of higher configuration level. Use with two wave form guardrail board, Guardrail Standard 4320mm * 310mm * 85mm * 4.0mm, column 140mm * 4.5mm * 2150mm.
2. Bracket type
the connection method of wave form guardrail board and pillar is bracket connection, standard is 70 * 300 * 4.5 mm, match two wave form guardrail board operation, Wave Form Guardrail Board, wave form guardrail board standard 4320 mm * 310 mm * 85 mm * 3.0 mm, column 114 mm * 4.5 mm * 1950 mm. Generally is the B class highway installation many, to the waveform guardrail plate anti-collision ability also does not have the very big request, both avoided the data waste, together also saved the budget.
3. Three wave wing block
commonly used in highways or river embankments, Binhai and other dangerous high coefficient sections, three wave shaped guardrail plate connecting the wing block, wave shaped guardrail plate, standard 300 mm * 290 mm * 200 mm * 4.5 mm, general column spacing for 2 meters, some will even be 1 meter, and the standard with three wave plate 4320 mm * 506 mm * 85 mm * 4.0 mm, column 130 mm * 130 mm * 6.0 mm * 2540 mm mostly.
