The CB200 High Shear Truss Unit is a professional-grade product designed to withstand high shear forces in bridge structures. This truss unit is specifically engineered for the sections of bridges that experience significant shear stress.

A classic project in Lithuania, this is the reconstruction of a bridge with a long history. During the project's reconstruction period, to ensure the passage of local traffic and construction vehicles, we provided a 39.624-meter-long CB200 model (domestically known as Type 200) Bailey bridge as a temporary access route.

Project Overview:

Bridge Solution: 39.624-meter Triple-Truss Single-Row Reinforced (TSR), meeting high-strength and load-bearing requirements.

Technical Parameters: Net carriageway width of 5.25 meters, design load of 40 tons, capable of accommodating some large construction vehicles.

High-Quality Materials: The main structure is made of Q355B high-strength steel, and the accessories are made of Q235B.

Surface Treatment: Overall hot-dip galvanizing to cope with local climate conditions.

With the detailed and professional erection plan we provided, the bridge was installed in about 10 days and is now open to traffic, providing solid transportation support for the entire reconstruction project.

Features of the CB200 (Type 200) Bailey Bridge: This is an internationally common, standardized, and modular steel bridge. Its main advantages are: lightweight components, convenient transportation, rapid connection via pins, and extremely fast installation. Through different component combinations (such as the triple-truss single-row reinforced in this project), it can flexibly match different span and load requirements. The use of Q355B steel for the main material ensures higher load-bearing capacity and safety.

Project Site Environment and Advantages of Hot-Dip Galvanizing:

Lithuania has a temperate continental climate, with long, cold, and humid winters with a lot of snow. This environment is highly corrosive to steel structures. The hot-dip galvanizing process we used provided a thick, uniform, and dense protective layer for all bridge components, with the following core advantages:

Superior Corrosion Resistance: It can effectively resist erosion from rain, snow, and humid air, greatly extending the bridge's service life.

Maintenance-Free: The galvanized layer is very durable and requires almost no maintenance during the entire temporary use period, reducing project costs.

High Reliability: Even if the surface is slightly scratched, the zinc layer will provide electrochemical protection to the steel substrate, preventing the spread of rust.

                                                            Bailey Bridge Diagram

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ZB200 truss press limited table
		structure form
No	internal force	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

ZB200 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 single-row, single-layer	SS single-row,single-layer	25.48	5437	580174
	SSR single-row,single-layer, reinforce	50.96	10875	1160348
DS double-row, single-layer	DS double-row,single-layer	50.96	10875	1160348
	DSR1 double-row,single-layer, reinforced	76.44	16312	1740522
	DSR2 double-row,single-layer, reinforced only on the top	101.92	21750	2320696
TS triple-row, single-layer	TS triple-row,single-layer	76.44	16312	1740522
	TSR2 triple-row,single-layer, reinforced only on the top	127.4	27185	2900870
	TSR3 triple-row,single-layer, reinforced only at the bottom	152.88	32625	3481044
QS quadruple-row, single-layer	QS quadruple-row,single-layer	101.92	21750	2320696
	QSR3 quadruple-row,single-layer, reinforced only on the top	178.36	38059	4061218
	QSR4 quadruple-row,single-layer, reinforced only at the bottom	203.84	43500	4641392

                                        

                                       Product  Process

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	Are you a factory or a trade company ?
☺	We are a factory with Six production lines and various machines to fabricate steel bridges parts and other steel structures. Also, we have gotten the exporting license to devote ourselves into global markets.

	How about quality control of your company?
☺	We pay great attention on quality control from the beginning to the end,keeping our goods to meet the standards of CMA,CNAS,ISO9001,Grade I road,Grade A urban road,Amercia loading standard HS25 and British loading standard HA.

	Where is your loading port?
☺	Any port in China, the main port is Shanghai port .