Fabricated Portable Steel Bridge Light Weight Modern Truss Bridge

Fabricated Steel Bridge/portable Steel Bridge Light Weight

The choice of steel significantly impacts the load-bearing capacity of Bailey bridges in several ways:

1. **Material Strength**
High-quality steel, such as high-strength low-alloy (HSLA) steel, offers superior tensile strength and durability compared to standard carbon steel. This higher strength allows Bailey bridges to support heavier loads without additional material, making them more efficient and cost-effective.

2. **Corrosion Resistance**
Using corrosion-resistant steel, such as weathering steel or stainless steel, can enhance the bridge's load-bearing capacity by preventing rust and degradation. Corrosion can weaken steel components over time, reducing their ability to support loads. High-quality steel with protective coatings or inherent corrosion resistance helps maintain the bridge's structural integrity.

3. **Fatigue Resistance**
Bridges are subjected to repetitive loading from traffic and environmental forces. High-quality steel with excellent fatigue resistance ensures that the bridge can withstand these repeated loads without developing cracks or structural weaknesses, thus maintaining its load-bearing capacity over time.

4. **Weldability and Fabrication**
High-quality steel that is easy to weld and shape allows for precise fabrication and assembly. This precision ensures that all components fit together correctly, maximizing the bridge's load-bearing capacity and overall structural performance.

5. **Design Flexibility**
High-quality steel provides the flexibility to design bridges with various configurations and spans. This adaptability allows engineers to optimize the bridge design for specific load requirements and environmental conditions, enhancing its load-bearing capacity.

In summary, the choice of high-quality steel for Bailey bridges not only increases their load-bearing capacity but also enhances their durability, corrosion resistance, and overall performance. This makes high-quality steel an essential material for constructing reliable and long-lasting bridges.

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