Hot Dip Galvanized Panel Bridge Galvanized For Bailry Bridge

Hot Dip Galvanized Panel Bridge/galvanized Panel For Bailry Bridge

After checking that the bridge deck of Bailey Bridge is cracked, whether it needs to be repaired immediately depends on the severity of the crack and the use of the bridge:

Situations that require immediate repair

- **Affecting structural safety**: If the bridge deck cracks and causes the bearing capacity of the bridge structure to decrease, such as penetrating cracks or large-area damage, it may cause the instability of the overall structure of the bridge. In this case, it must be repaired immediately.
- **Affecting traffic safety**: When the bridge deck cracks and causes the bridge deck to be uneven, it affects the normal passage of vehicles and pedestrians, and there are safety hazards, such as possible vehicle bumps, loss of control or pedestrians falling, etc., repair measures should be taken immediately.
- **Cracks have a tendency to expand**: If the cracks in the bridge deck show obvious signs of expansion, it means that the bridge structure may be in an unstable state. In order to prevent the cracks from further expanding and causing more serious consequences, they need to be repaired immediately.

Situations where repairs can be temporarily omitted
- **Minor cracks that do not affect use**: If the degree of cracking of the bridge deck is relatively minor, such as only some small cracks on the surface, and it does not affect the structural safety and normal use of the bridge, it can be temporarily omitted, but the changes in the cracks need to be observed regularly.
- **The bridge is about to be demolished or replaced**: If the Bailey bridge is temporary and is about to be demolished or replaced, minor cracks in the bridge deck can be omitted.

Repair standards
- **Replacement of bridge deck**: For bridge decks that are severely cracked or cannot be repaired, they should be replaced. The replaced bridge decks should meet the original design requirements, and the materials, specifications and performance should meet the standards.
- **Welding repair**: For smaller cracks, welding repair can be used. When welding, the welding process requirements must be strictly followed to ensure the welding quality.
- **Reinforcement treatment**: For some bridge deck cracks caused by fatigue and other reasons, reinforcement measures can be adopted, such as adding support and setting stop crack holes.

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