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Bridge rail standard

Bridge rail standard
This section refers to the design of the new bridge railing and rehabilitation needs in scope as the need to replace the railing is needed
 DEFINITIONS:
 
  Barrier types of pavement - A flat or masonry shelf system rise above the road surface used to separate the margin walking and / or biking; see Figure 13.7.1-1.
 
Bicycle Railing - Railing System or barriers, as illustrated in Figure 13.9-1 create a physical guide for cyclists crossing the bridge in order to reduce to a minimum the possibility of cyclists crashed outside the railing.
 
Railing bridgehead - System along the road corridor walls preset textures and are caught with rod railing system to prevent car crashes into top railing or low wall on the bridge.
 
Handrail combination - railing system for bicycles or pedestrians, as illustrated in Figure 13.5.2-1 and 13.9.3-1 be added along with handrail system or vehicle barriers.
 
Concrete Fences - System handrail of reinforced concrete with a hand on the road often, but not always improve the safety shapes.
 
Protective concrete wall - railing system of reinforced concrete, is generally considered as a reinforced concrete wall reinforced sufficiently.
 
Test vehicle crashed into railings - How to conduct a series of impact tests on prototype handrail.
 
Design capacity - An equivalent static force representing power of the car is defined transmission to the railing system by hitting the railing according to fixed speed and angle.
 
The infringement - the intrusion into areas within the prescribed limits or restrictions of the road system, as the level exceeds the lane or hit the barrier system. Likewise, Professor infringing on the road about any type or characteristics of any structure or object road.
 
Head area - any area adjacent to the open joints in the concrete railing systems require additional reinforcement.
 
Road super highway - main road cars, entrance control, whether or not assigned a direction or other communication at intersections.
 
Surface of pavement - vertical or inclined surface of pavement at the side of the road.
 
Highways - The main road cars, entrance control, navigation and communication are assigned different levels at the intersections.
 
The vertical load direction - horizontal design forces are parallel to the railing systems or barriers caused by the friction of the load across the railing system.
 
Railing versatile - Railing can be used with or without a raised road riders.
 
Owner - The authority or specialized agency of the Government shall be responsible for all safety design features and functionality of the bridge.
 
Pedestrian handrail - handrail system or barrier, as shown in Figure 13.8.2-1, creating a physical guide for pedestrians crossing the bridge, in order to reduce to a minimum the possibility of people walk crashed.
 
Column - Parts baluster system supports vertical or inclined to anchor structures railing with spheres.
 
Structures balusters - Any component created railing systems. Usually, it is associated with means parts placed along the railing.
 
High speed / low - speed vehicle km / h. The low speed is often used for travel in cities or rural areas where the rate specified in the column is less than 70 km / h. The high speed is often associated with highway type A or type B, in which the write speed on the column was 80 km / h or more.
 
Railing motorways - Synonymous with railing cars, used as a handrail installed on the bridge or structure, other than the corridor walls or railing barrier in the median as mentioned in the publication other.
 
The horizontal load - The design horizontal force is placed perpendicular to the system railing or barrier.
 
The main purpose of the railing road is blocked to hold and navigate the vehicle using texture.
 
Consideration should be given to:
 
• Protection for the people in the car when the car hit the railing,
• Protect the other vehicles in the near collision,
• Protecting people and property on the roadway and the other below the structure,
• Economic efficiency of the railing, and
• Appearance and ventilation of vision from the vehicle over.
 
A handrail used in combination, in accordance with the dimensions given in the Figure 13.8.2-1 and 13.9.3-1, can
be regarded as suitable for use in road pedestrian measuring 1000 mm or more, and the height of pavement to 200mm.
 
The combined use handrail car-pedestrian shown in Figure 1 should be limited to
fixed line speed of 70 km / h or less.
 
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