Assembly Steel Bridge/military Steel Bridge

Using automatic welding for bridge construction presents several challenges:

1. **Complex Construction Environment**
Bridge construction often takes place in open-air environments, making welding operations vulnerable to weather conditions such as wind, rain, and extreme temperatures. Additionally, the construction site may have overlapping work operations and multiple obstacles, further complicating the welding process. The non-directional welding points and significant mobility required during construction also pose difficulties.

2. **Real-Time Adaptation Limitations**
Current automatic welding systems often rely on static models that cannot account for real-time changes during the welding process, such as material deformations, misalignments, and defects. Without real-time feedback, these systems may struggle to adapt to dynamic conditions, potentially compromising weld quality.

3. **Limited Detection Range**
Some welding quality detection systems have limitations in terms of the detection range of weld length and vertical distance. When these parameters exceed the system's capacity, it becomes challenging to meet the demands for efficiency and accuracy.

4. **Algorithm and Technology Evolution**
The field of object detection networks is rapidly evolving, and incorporating new modules and advancements into existing systems is necessary to keep up with the latest developments. This requires continuous updates and improvements to the algorithms and technologies used in automatic welding systems.

5. **Safety Risks**
The welding process generates strong currents, high temperatures, and significant amounts of fumes and dust, which can pose safety risks to construction workers. These conditions may also interfere with the operation of welding equipment and sensors.

6. **Meeting Project Deadlines**
Bridge construction projects often have tight deadlines, and ensuring high-quality welds while maintaining a fast pace of work can be challenging. Automatic welding systems must be efficient and reliable to meet these demands without compromising on quality.

7. **Data Management and Collaboration**
Effective data management and collaboration among team members are crucial for successful bridge construction. Challenges include efficiently managing datasets, sharing insights, and coordinating strategies to ensure that all aspects of the welding process are optimized.

Addressing these challenges requires continuous innovation and the integration of advanced technologies, such as real-time monitoring and adaptive control systems, to enhance the reliability and efficiency of automatic welding in bridge construction.

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