COC Certificate Prefabricated Truss Bridge Composite Deck Truss Bridge Galvanized
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Steel Truss Bridge Description: Prefabricated Steel Truss Bridge Big Professional Loading Capacity
Warren Truss: The Warren truss is another popular type of steel truss bridge. It consists of diagonals that alternate in direction, forming a zigzag pattern. The vertical members provide additional support. Howe Truss: The Howe truss utilizes diagonal members that slope away from the center of the span, with vertical members for support. It is commonly used for medium-span bridges. Parker Truss: The Parker truss is characterized by its curved top chord and diagonal members that slope towards the center. This type of truss is often used for longer spans.
(1) Main girder
It is the main load-bearing structure and bears vertical loads. The main truss is composed of upper chord, lower chord and belly rod. The belly bar is divided into diagonal bar and vertical bar. Nodes are divided into large nodes and small nodes. Pitch refers to the distance between nodes.
(2) Bracing
1. Classification: longitudinal connection and horizontal connection. 2. Function: Connect the main truss, make the bridge span structure become a stable space structure that can withstand a variety of lateral loads. 3. The longitudinal connection system is divided into upper horizontal longitudinal connection system and lower horizontal longitudinal connection system. The main function is to withstand the transverse horizontal load, transverse wind, lateral rocking force and centrifugal force acting on the bridge span structure. In addition, the transverse support chord, reducing its free length outside the plane. 4. The transverse connection is divided into bridge frame and crosslink. The main function is to increase the torsional stiffness of steel girder. Properly adjust the uneven force of the two main stringer or two longitudinal links.
(3) Bridge deck system
1. Composition: the longitudinal beam, beam and the connection between the longitudinal beam.
2. Way of force transmission: the load first acts on the longitudinal beam, and then from the longitudinal beam to the beam, and then from the beam to the main truss.
(4) Bridge deck
The bridge deck is the part for vehicles and pedestrians to walk on. The form of the deck is similar to that of steel beam Bridges and combined beam bridges.
Geometric characteristics of the main truss:
Economy, simple structure, conducive to standardization and easy to manufacture and install.
The main truss categories:
Triangular truss: Triangular truss structure is simple, the design is fixed, easy to install and manufacture.
Diagonal bar truss:
Many bar specifications. Many specifications and large internal force of the vertical rod. All are large nodes.
The K-shaped truss:
The shear force of the same node is borne by two diagonal rods, which are small and short in section. The bar has many specifications, many nodes, short intersections, and many crossbar beams and connections. For small and medium-sized spans, the structure is complex. For large spans, the rods are short, light and suitable for mounting and dismounting Bridges.
Double-vented bar truss:
The same internode shear force is borne by two diagonal rods, which are small and short in section. It is used for large span, short compression inclined rod, which is favorable for buckling stability. The small section of the inclined rod makes the number of connecting pins on the joint plate less, and it is easy to arrange the joint. Features of steel truss bridges:
Truss Configuration: Steel truss bridges are characterized by their truss configuration, which consists of a series of interconnected steel members arranged in a triangular pattern.
Versatile Span Lengths: Steel truss bridges can be designed to accommodate a wide range of span lengths, from short to long. Rapid Construction: Steel truss bridges can be fabricated off-site, allowing for efficient and rapid construction.
Advantages of the steel truss bridge:
Good seismic performance Large span Versatility: Steel truss bridges can be designed in various configurations to accommodate different span lengths, site conditions, and architectural requirements.
Application of the steel truss bridge:
Highway and Road Bridges: Steel truss bridges are frequently used in the construction of highway and road bridges. Pedestrian Bridges: Steel truss bridges are often employed as pedestrian bridges, providing safe and convenient crossings for pedestrians and cyclists. Railroad Bridges: Steel truss bridges are well-suited for railway applications, including both standard gauge and light rail systems.
Evercross Steel Bridges Overview :
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