Prefabricated Portable Temporary Steel Bridge Durable Galvanized

Prefabricated Steel Portable Bridge/panel Steel Bridge

Double-webbed members in Bailey bridges serve several critical functions that enhance the bridge's load-carrying capacity and structural integrity. These members are essentially two panel girders connected together to form a stronger, double-width truss. Here are the main purposes of double-webbed members:

1. **Increased Load Capacity**:
   Double-webbed members significantly enhance the load-carrying capacity of the bridge. By doubling the number of panel girders, the bridge can support heavier loads, making it suitable for applications where heavy vehicles or equipment need to cross.

2. **Enhanced Stability**:
   The additional width provided by double-webbed members increases the overall stability of the bridge. This is particularly important in situations where the bridge needs to withstand significant lateral forces, such as those caused by wind or uneven loading.

3. **Flexibility in Design**:
   Double-webbed members offer greater flexibility in bridge design. Engineers can configure the bridge to meet specific load and span requirements by adjusting the number of double-webbed members used. This modular approach allows for quick adaptation to different site conditions and requirements.

4. **Improved Durability**:
   The use of double-webbed members can improve the durability of the bridge by distributing the load more evenly across the structure. This reduces the stress on individual components, leading to a longer service life.

5. **Ease of Assembly**:
   Despite their increased strength and capacity, double-webbed members maintain the ease of assembly characteristic of Bailey bridges. They can be quickly connected using standard components and tools, allowing for rapid deployment in emergency or temporary situations.

In summary, double-webbed members in Bailey bridges are essential for increasing load capacity, enhancing stability, providing design flexibility, improving durability, and maintaining ease of assembly. These features make Bailey bridges a versatile and reliable solution for a wide range of applications.

Specifications:

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CB200 Truss Press Limited Table
NO.	Internal Force	Structure Form
		Not Reinforced Model				Reinforced Model
		SS	DS	TS	QS	SSR	DSR	TSR	QSR
200	Standard Truss Moment(kN.m)	1034.3	2027.2	2978.8	3930.3	2165.4	4244.2	6236.4	8228.6
200	Standard Truss Shear (kN)	222.1	435.3	639.6	843.9	222.1	435.3	639.6	843.9
201	High Bending Truss Moment(kN.m)	1593.2	3122.8	4585.5	6054.3	3335.8	6538.2	9607.1	12676.1
202	High Bending Truss Shear(kN)	348	696	1044	1392	348	696	1044	1392
203	Shear Force of Super High Shear Truss(kN)	509.8	999.2	1468.2	1937.2	509.8	999.2	1468.2	1937.2

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CB200 Table of Geometric Characteristics of Truss Bridge(Half Bridge)
Structure	Geometric Characteristics
	Geometric Characteristics	Chord Area(cm2)	Section Properties(cm3)	Moment of Inertia(cm4)
ss	SS	25.48	5437	580174
	SSR	50.96	10875	1160348
DS	DS	50.96	10875	1160348
	DSR1	76.44	16312	1740522
	DSR2	101.92	21750	2320696
TS	TS	76.44	16312	1740522
	TSR2	127.4	27185	2900870
	TSR3	152.88	32625	3481044
QS	QS	101.92	21750	2320696
	QSR3	178.36	38059	4061218
	QSR4	203.84	43500	4641392

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CB321(100) Truss Press Limited Table
No.	Lnternal Force	Structure Form
		Not Reinforced Model				Reinforced Model
		SS	DS	TS	DDR	SSR	DSR	TSR	DDR
321(100)	Standard Truss Moment(kN.m)	788.2	1576.4	2246.4	3265.4	1687.5	3375	4809.4	6750
321(100)	Standard Truss Shear (kN)	245.2	490.5	698.9	490.5	245.2	490.5	698.9	490.5
321 (100) Table of geometric characteristics of truss bridge(Half bridge)
Type No.	Geometric Characteristics	Structure Form
		Not Reinforced Model				Reinforced Model
		SS	DS	TS	DDR	SSR	DSR	TSR	DDR
321(100)	Section properties(cm3)	3578.5	7157.1	10735.6	14817.9	7699.1	15398.3	23097.4	30641.7
321(100)	Moment of inertia(cm4)	250497.2	500994.4	751491.6	2148588.8	577434.4	1154868.8	1732303.2	4596255.2

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Advantage

Possessing the features of simple structure,
convenient transport, speedy erection
easy disassembling,
heavy loading capacity,
great stability and long fatigue life
being capable of an alternative span, loading capacity