General

Truss Bridge is a triangulated framework of individual elements or members which act primarily in tension or compression. Trusses have been used in a similar way to beams in composite decks, as arches, as cantilevers or as stiffening girders to suspension bridges.

Today, the truss girder form of construction usually proves expensive to fabricate because of the large amount of labour-intensive work in building up the members and making the connections, so they are seldom used for ordinary highway bridges. However, for through or half-through forms, truss bridges do offer a very stiff, lightweight solutions with minimum structural depth. Hence, they are widely used for footbridges, demountable bridges, gantries and longer span railway bridges (over 50m).

Product Information

Newcore always use high-quality structure steel that is readily available worldwide in certified grades, in products of various shapes and sizes. Prefabrication of steelwork in controlled factory conditions leads to high quality work at minimum cost. The excellent quality control is achieved through a thorough testing regime at the steel mills and during the fabrication processes of cutting and drilling, assembly, welding, and protective treatment. The quality assurance that is attained should give confidence to all clients and engineers who specify steel for their bridge project.

Steel material is supplied in two product forms – ‘flat products’ (steel plate and strip) and ‘long products’ (rolled sections, either standard open sections such as beams, channels, angles, etc or hollow sections). For structural use in bridges these products are inevitably cut (to size and shape) and welded, one component to another. In the structure, the material is subject to tensile and compressive forces. Structural steel generally responds in a linear elastic manner, up to the ‘yield point’ and thereafter has a significant capacity for plastic straining before failure. All these aspects of steel material are utilised by the designer of a steel bridge.

Construction

A wide range of construction methods and sequences are available for steel bridges. They can be lifted, piece-by-piece, by cranes or strand jacks; they can be launched by sliding or rolling from the abutment; or they can be slid or transported into position. In some instances a combination of erection methods are needed; these are called ‘Hybrid schemes’. Steel offers flexibility in terms of erection sequence and certainty in terms of the programme, once erected, the steel girders provide platforms for subsequent deck construction operations. That can reduce the construction time.

Offsite prefabrication of steel components means that construction time on site often in hostile environments. The speed of bridge construction made possible by steel allows disruption to road and rail users to be kept to a minimum. The relatively low weight of structural steel components permits the erection of large sections; in some circumstances complete bridges can be moved into position overnight. Speed of steel bridge construction also benefits main contractors even on ‘green field’ sites, as it allows them to establish and maintain access for haul roads.

General

A beam and slab, or composite bridge is one where a reinforced concrete deck slab sits on top of steel I-beams, and acts compositely with them in bending. There are two principal forms of this beam and slab construction; multi-girder construction and ladder deck construction. Between them, they account for the majority of medium span highway bridges currently being built in the China, and are suitable for spans ranging from 13m up to 100m. The choice between the two forms depends on economic considerations and site-specific factors such as form of intermediate supports and access for construction.

Increasingly, such composite bridges are adopting ‘integral construction’, where the deck is rigidly connected to the abutments. This eliminates the need for expansion joints and bearings, which minimises future maintenance requirements.

In some situations, notably for railway bridges, the depth between the trafficked surface (or rails) and the underside of the bridge is severely constrained and there is little depth available for the structure. In these circumstances, ‘half-through’ construction is used.

Product Information

Newcore always use high-quality structure steel that is readily available worldwide in certified grades, in products of various shapes and sizes. Prefabrication of steelwork in controlled factory conditions leads to high quality work at minimum cost. The excellent quality control is achieved through a thorough testing regime at the steel mills and during the fabrication processes of cutting and drilling, assembly, welding, and protective treatment. The quality assurance that is attained should give confidence to all clients and engineers who specify steel for their bridge project.

Steel material is supplied in two product forms – ‘flat products’ (steel plate and strip) and ‘long products’ (rolled sections, either standard open sections such as beams, channels, angles, etc or hollow sections). For structural use in bridges these products are inevitably cut (to size and shape) and welded, one component to another. In the structure, the material is subject to tensile and compressive forces. Structural steel generally responds in a linear elastic manner, up to the ‘yield point’ and thereafter has a significant capacity for plastic straining before failure. All these aspects of steel material are utilised by the designer of a steel bridge.

Construction

A wide range of construction methods and sequences are available for steel bridges. They can be lifted, piece-by-piece, by cranes or strand jacks; they can be launched by sliding or rolling from the abutment; or they can be slid or transported into position. In some instances a combination of erection methods are needed; these are called ‘Hybrid schemes’. Steel offers flexibility in terms of erection sequence and certainty in terms of the programme, once erected, the steel girders provide platforms for subsequent deck construction operations. That can reduce the construction time.

Offsite prefabrication of steel components means that construction time on site often in hostile environments. The speed of bridge construction made possible by steel allows disruption to road and rail users to be kept to a minimum. The relatively low weight of structural steel components permits the erection of large sections; in some circumstances complete bridges can be moved into position overnight. Speed of steel bridge construction also benefits main contractors even on ‘green field’ sites, as it allows them to establish and maintain access for haul roads.

General

Compact Panel Bridge is a standard bridge equipment, adopted extensively and the most popular in the world, possessing the features of simple structure, convenient transport, speedy erection and easy disassembling, while having the advantage of heavy loading capacity, great stability and long fatigue life being capable of an alternative span, loading capacity and 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.

Compact Panel Bridge is similarly like compact 100, compact 200 International bridge. It is assembled by each 3m panel, and invented by Donald Bailey. The 321 panel bridge can be easily dissembled and rapidly erected. The whole bridge is made by high-tensile strength steel. Main beam is light weight panels and the panels are connected by panel connection pins. It is easy to assemble or disassemble and transport. It can also be assembled into different forms of panel bridges according to their span length and transportation requirement. So, it has been widely applied as emergency transportation, temprary or permanent bridge.Its suitable load design is such like HS-15, HS-20, HS-25 and pedrail-50 etc.

Product Information

The compact 100 panel bridge is a type of bridge system that can be dissembled and rapidly erected. The whole bridge is welded with high-tensile strength steel. The girder is lightweight composite panels and the panels are connected by panel connection pins. The conversion between the parts is easy and they are lightweight. It is easy to assemble or disassemble and transport them. It can also be assembled into different forms of panel bridges according to their span length and transportation requirement. So, it has been widely applied as a more developed and guaranteed panel bridges for emergency transportation. It is suitable for load designs of HS-15, HS-20, HS-25 and pedrail-50 etc.

Another type is the compact 321 panel bridge designed by China Program Designing Institution of Transport Ministry according to Chinese codes and local practice. Its design is based on the compact 100 panel bridge. Comparing with the compact 100 panel bridge, the design, except for minor change of some sizes, are conforming to the standard of  compact 100 panel bridges, so this type of bridge can also satisfy all the application standards of the compact 100 panel bridges.

Construction

A wide range of construction methods and sequences are available for steel bridges. They can be lifted, piece-by-piece, by cranes or strand jacks; they can be launched by sliding or rolling from the abutment; or they can be slid or transported into position. In some instances a combination of erection methods are needed; these are called ‘Hybrid schemes’. Steel offers flexibility in terms of erection sequence and certainty in terms of the programme, once erected, the steel girders provide platforms for subsequent deck construction operations. That can reduce the construction time.

Offsite prefabrication of steel components means that construction time on site often in hostile environments. The speed of bridge construction made possible by steel allows disruption to road and rail users to be kept to a minimum. The relatively low weight of structural steel components permits the erection of large sections; in some circumstances complete bridges can be moved into position overnight. Speed of steel bridge construction also benefits main contractors even on ‘green field’ sites, as it allows them to establish and maintain access for haul roads.

General

A pedestrian bridge is also known as footbridge, a bridge designed for pedestrians including cyclists, animal traffic and horse riders but not accessible for vehicles. Pedestrian bridges complement the landscape and can be used to link two distinct areas or to signal a transaction.

In many developed countries, pedestrian bridges are both functional and can be decoratively works of art and sculpture. It also functions in a community as access to medical clinics, schools and markets or crossing rivers.

Simple suspension bridge designs have been created to be sustainable and easily constructable in many areas using only local materials and labor.

There are different types of design pedestrian bridges such as Timber, Steel and Concrete footbridges. An enclosed pedestrian bridge between two buildings is called a skyway. Bridges develop to provide for both pedestrians and cyclists are known as greenbridges.

Product Information

Newcore  always uses high-quality structure steel that is readily available worldwide in certified grades, in products of various shapes and sizes. Prefabrication of steel work in controlled factory conditions leads to high quality work at minimum cost. The excellent quality control is achieved through a thorough testing regimine at the steel mills and during the fabrication processes of cutting and drilling, assembly, welding, and protective treatment. The quality assurance that is attained should give confidence to all clients and engineers who specify steel for their bridge project.

Steel material is supplied in two product forms – ‘flat products’ (steel plate and strip) and ‘long products’ (rolled sections, either standard open sections such as beams, channels, angles, etc or hollow sections). For structural use in bridges these products are inevitably cut (to size and shape) and welded, one component to another. In the structure, the material is subject to tensile and compressive forces. Structural steel generally responds in a linear elastic manner, up to the ‘yield point’ and thereafter has a significant capacity for plastic straining before failure. All these aspects of steel material are utilised by the designer of a steel bridge.

Construction

Newcore is professional manufacturer and engineering company for space frame and steel structure project with full capability of research, design, fabrication, construction, supervision service for overseas project.

Our design team is comprised of professional design engineers with master’s or bachelor degrees. Using software SFCAD, 3D3S, PKPM, PS2000, AUTOCAD, they are able to ensure the quality of the designs of our structures. We also have already established strategic  relationships with many universities, construction design institutes, etc. which enable the company to have high capability of designing and consulting in the professional field. We are exceptional at designing in accordance to design codes of ASTM, BS, DIN, JIS, and GB to satisfy different customers’ requirements.

Space frame structures are strong because of the inherent rigidity of the triangle flexing loads (bending moments) are transmitted as tension and compression loads along the length of each strut. Space frame structures are suitable to be used span large areas with few interior supports such as stadium, coal storage, cement storage, etc.  We have now completed more than 200 overseas projects which quality is satisfied with all customers.

General

Box girders comprise two webs that are joined top and bottom by a common flange creating a closed cell that offers very good torsional stiffness, which may be required on highly curved bridges. In beam and slab bridges, box girders are an alternative to plate girders at the upper end of the span range, where they offer a lower steel weight, although this has to be balanced against increased fabrication costs. Such composite box girder decks may take the form of multiple closed steel boxes, with the deck slab over the top, or an open top trapezoidal box, closed by the deck slab.

Longer spans of 100 to 200m typically use either a single box or a pair of boxes with crossbeams. For such long spans and for bridges such as lifting bridges, where minimising structural weight is very important, an all-steel orthotropic deck may be used instead of a reinforced concrete slab. Above about 200m, box girders are likely to be part of a cable-stayed bridge or a suspension bridge, where they are specially shaped for optimum aerodynamic performance.

Product Information

Newcore always use high-quality structure steel that is readily available worldwide in certified grades, in products of various shapes and sizes. Prefabrication of steelwork in controlled factory conditions leads to high quality work at minimum cost. The excellent quality control is achieved through a thorough testing regime at the steel mills and during the fabrication processes of cutting and drilling, assembly, welding, and protective treatment. The quality assurance that is attained should give confidence to all clients and engineers who specify steel for their bridge project.

Newcore will use Corten Steel un this type of bridge, Corten steel is a high strength low alloy steel that in suitable environments forms an adherent protective rust ‘patina’, to inhibit further corrosion. The corrosion rate is so low that bridges fabricated from unpainted weathering steel can achieve a 120 year design life with only nominal maintenance.

Construction

A wide range of construction methods and sequences are available for steel bridges. They can be lifted, piece-by-piece, by cranes or strand jacks; they can be launched by sliding or rolling from the abutment; or they can be slid or transported into position. In some instances a combination of erection methods are needed; these are called ‘Hybrid schemes’. Steel offers flexibility in terms of erection sequence and certainty in terms of the programme, once erected, the steel girders provide platforms for subsequent deck construction operations. That can reduce the construction time.

Offsite prefabrication of steel components means that construction time on site often in hostile environments. The speed of bridge construction made possible by steel allows disruption to road and rail users to be kept to a minimum. The relatively low weight of structural steel components permits the erection of large sections; in some circumstances complete bridges can be moved into position overnight. Speed of steel bridge construction also benefits main contractors even on ‘green field’ sites, as it allows them to establish and maintain access for haul roads.