Description:

D-bridge is the patent of Great Wall;It was invited from Germany and has advantage in the long-span and big loading comparing to bailey bridge. Thus, it can save cost of piers.

Its panel chord is bigger than bailey bridge panel but the panel structure is simpler. All the components are bolted so the bridge can be used as a permanent bridge because of its small deflection..The components are interchangeable and repetitively used.This kind of bridge has various structure changes to satisfy different loading capacity.

The surface protection can be paint or hot-dip galvanized.

Specifications:

Competitive Advantage:

Introduction

GW D bridge is a standard bridge equipment, adopted extensively and the most popular in the world


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


Features

1. High strength and big stiffness , relative to the concrete bridge can be reduced trabecular high and self-respect
2. Due to the steel isotropic, quality of a material is uniform and modulus of elasticity, that make steel bridge in the working condition and calculation compared with the assumption
3. Steel bridge generally prefabricated factory, site splicing, the construction period is short, processing convenient and not affected by seasonal effect.
4. Steel bridge is suitable for industrialized manufacture and very convenient to transport.
5. Steel bridge is easy to repair and replace,long lifetime,material can be recycled.


Application

Beam bridge,arch bridge,rigid frame bridge,cable-stayed bridge,suspension bridge. passenger foot-bridge


Mixture form to erect all kinds of

Temporary Bridges, Emergency Bridges and Fixed Bridges.
Using the bridge equipment, the suspension bridges of varied span can be erected.
The bridge has the advantages of few components, light weight and low cost.
Bailey Bridge requires no special tools or heavy equipment for construction, the bridge elements
are small enough to be carried in , and the bridge is strong enough to carry . It is considered a great example of military engineering.


The compact 200 panel bridge: The compact 200 panel bridge is similar to the compact 100 panel
bridge from their appearance. The difference is its increased panel height to 2.134m. It employed the method of alternating joints between Reinforcement Chords and the joints between panels. This method can decrease inelastic deformation caused by the oversized pinholes.
Pre-arch method is used to additionally cut down mid-span and vertical deflection to a larger degree.
Bolt-connected components use the orienting sleeve- fixing method to increase accuracy of connections. Shear is created in orienting sleeves and tension is developed in bolts, which increase the usage life of the bolts and ensure the safety of panel bridges. Wind resistant brace is made to be composite type and is connected to transom/girders to improve overall stability of panel bridges.

ZhengJiang Great Wall Heavy Industry Technology Co.ltd (here and after called Great Wall ) is locacted at Zhengjiang city, South of Yangtze River, belonging to Yangtze River Delta economic zone, owning railway station of Shanghai-Nanjing and Shanghai-Beijing High-speed raillways; 30 kilometers away from Zhenjiang seaport, 50 kilometers away from Changzhou airport, 70 kilometers away from Nanjing airport,and YangzhouTaizhou airport; Great Wall has passed ISO Quality Management System Certificate; its WPS and welders have passed BV certification; the raw material and finished products are accepted by International Third Testing Institute such as SGS,CCIC,CNAS etc; In addition,Great Wall has several independent R & D patents

321-Type（British Compact-100） prefabricated highway steel bridge and 200-Type prefabricated highway steel bridge ( Bailey bridge) are main products of Great Wall, which has a full set of components production line for complete bailey bridge set. More than this, Great Wall has developed a kind of large span prefabricated D-Type bridge whose single span can be up to 91 meters, and has completed the load test already and engineering application of the whole bridge.

Great Wall has the surface treatment process of sand blasting, dip coating, spray painting, hot dip galvanizing, zinc aluminum alloy coating,etc with the annual output of more than 10000 tons.

Great Wall has good cooperation relationships with China Communication Group, China Railway Group, Powerchina Corporation, GEZHOUBA Group, CNOOC etc huge state-owned Key Enterprises in railway, road, international government procurement projects, and is also enthusiastic about the public welfare, such like supporting Hongkong Wu Zhi Qiao (Bridge to China) Charitable Foundation, building up all the footbridges for them and supporting China Shanxi TV building Charity Bridge for remote village.

Great Wall steel bridge is not only well- known in China, but also won good reputation overseas; the bridges made by Great Wall have been used all over the world exported to Indonesia, Nepal, Republic of the Congo, Myanmar, Mongolia, Kyrgyzstan, Mexico, Chad, USA, Trinidad and Tobago, Mozambique, Tanzania，Kenya, Ecuador , Dominica etc.

Furthermore, Great Wall has developed the container movement set independently, undertakes heavy steel structure fabricating business, promotes mechanical galvanization process for fastening parts.

The container movement set is not only supplied to domestic airplane manufacturing company, but also exported to country Haiti and so on meeting the demands of moving container in airport dock. The box girder, plate girder, guard rail such steel structures made by Great Wall are also well approved by clients. Great Wall mechanical galvanizing process made up the deficit of electroplating and hot galvanizing, showed extraordinary performance in field of environmental galvanization.

Great Wall considers the quality as company’s life, always accumulates the industrial experience of production and quality, improves production technology and efficiency, follows international specifications to control the quality, improves international competition, supplies the superior products and the best service to the clients with high standard, good quality and branding strategy.

Great Wall will not let you down as long as you choose it.