Long Life Durable Prefabricated Bailey Bridge/standard Bailey Bridge

If the wind-resistant tie rod of the Bailey bridge is loose, you can handle it as follows:

1. **Check the cause of looseness**
- **Check the turnbuckle and locking nut**: The wind-resistant tie rod is equipped with a loose turnbuckle to adjust the tie rod length, and a locking nut is provided at one end of the turnbuckle to prevent the tie rod from loosening. First check whether the turnbuckle is at the correct length, that is, whether the rod end touches the length indicator block, and whether the locking nut is tightened.
- **Check the connection part**: Check whether the pin connecting the wind-resistant tie rod to the truss is loose or falls off.

2. **Adjust the tie rod length**
- **Adjust with the turnbuckle**: If the tie rod length is incorrect, you can adjust it by rotating the turnbuckle until the rod end touches the length indicator block, indicating that the tie rod is at the correct length.

3. **Tighten the locking nut**
- **Ensure firm fixation**: After adjusting the tie rod length, the locking nut at one end of the turnbuckle must be tightened to prevent the tie rod from loosening.

4. **Check the connection pin**
- **Reinstall or replace**: If the connection pin is found to be loose or detached, the pin should be reinstalled or replaced, and the pin should be ensured to firmly connect the wind-resistant tie rod and the truss.

5. **Regular inspection and maintenance**
- **Regular inspection**: In daily maintenance, the tightness of the wind-resistant tie rod should be checked regularly, especially after bad weather, to promptly detect and deal with loose problems.
- **Apply grease to prevent rust**: Apply grease to the exposed parts of the pins and bolts to prevent rust and looseness caused by rain erosion.

Through the above steps, the problem of loose wind-resistant tie rods of Bailey bridges can be effectively dealt with to ensure the safety and stability of the bridge.

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