1 railing
Height: Standard Design 1.0m, general 0.8 ~ 1.2m by material classification: reinforced concrete, steel, mixing, masonry, wood, plastic
According to the form of classification: internode type (1.6 to 2.7m per column), continuous
According to the level of classification: Gaolan, column, column
Strength: only consider the force of people rely on the railings
Requirements: sufficient section size and embedded depth
Expansion joints can be free deformation
2 guardrail
Location: Bridge side, the central separation zone, the boundaries of the vehicle
Structural feature classification
Embedded mode: column directly embedded, flange connection, one pouring
Guardrail crash rating: PL1, PL2, PL3, according to the design conditions provided by the design barrier.
In a word: railing protection, guardrail protection car.