Construction Safety Prefabricated Steel Bailey Bridge 300m Length

Prefabricated Bailey Bridge/excellent Quality Bailey Bridge

In the bridge reconstruction construction, in order to ensure construction safety, the following safety equipment is required:

Protective equipment
- **Safety helmets and safety belts**: Construction workers must wear safety helmets and safety belts, especially when working at heights, the safety belts should be tied to a secure place to prevent people from falling.
- **Guardrails and safety nets**: Guardrails are set up around the bridge deck, the edge of the scaffolding, and other locations, and safety nets are hung on both sides of the bridge and between the scaffolding and the bridge to prevent people and objects from falling.
- **Anti-slip shoes and gloves**: Provide anti-slip shoes and gloves for construction workers to increase grip and stability on slippery or rough surfaces.

Warning equipment
- **Warning signs and warning lights**: Set up obvious warning signs in the construction area to indicate the construction scope and dangerous areas. During night construction, warning lights should be set up to remind passing vehicles and pedestrians to pay attention to safety.
- **Traffic diversion facilities**: When there is social traffic in the construction area, traffic diversion facilities such as traffic cones, warning signs, etc. should be set up, and special personnel should be arranged to divert traffic.

Hoisting and lifting equipment
- **Hoisting equipment**: According to the specific needs of bridge reconstruction, select appropriate lifting equipment, such as truck cranes, crawler cranes, gantry cranes, crane ships, tower cranes, etc. The lifting equipment should be accepted before entering the site, and should be used in accordance with the technical performance, load-bearing capacity and other requirements specified in the factory manual.
- **Lifting equipment and rigging**: Use hoists, pulley blocks, wire ropes, hoists, hooks, clasps and various jacks and other lifting equipment and rigging. These equipment should use qualified products in good condition and be inspected and maintained regularly.

Monitoring and protection equipment
- **Construction monitoring equipment**: Install construction monitoring equipment to monitor and control the internal force and linear shape of the bridge structure in real time to ensure structural safety and that the internal force and linear shape meet the design requirements.
- **Over-limit protectors and protective covers**: Install over-limit protectors, protective covers and other devices on mechanical equipment to prevent safety accidents caused by equipment overload or misoperation.
- **Grounding device and lightning arrester**: Grounding device and lightning arrester are installed to prevent electrical equipment leakage and lightning strike accidents.

Emergency escape equipment
- **Escape passage**: Escape passage is installed in the construction area to ensure that personnel can evacuate quickly in an emergency.
- **First aid equipment**: First aid kits, stretchers and other first aid equipment are equipped so that first aid can be provided in time when personnel are injured.

Other equipment
- **Temporary power protection device**: When there are 5 or more temporary power equipment at the construction site or the total capacity of the equipment is 50kW or more, a temporary power construction organization design should be prepared and a temporary power protection device should be installed.
- **Windproof cable and ground anchor**: For various temporary facilities such as brackets (brackets) and towers, windproof cables and ground anchors should be installed to enhance their stability.

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