Viaduct Bridge Steel Structure

Ref Price:
Loading Port:
Tianjin Port
Payment Terms:
TT or LC
Min Order Qty:
1000MTONS m.t.
Supply Capability:
5000MTONS/MONTH m.t./month
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Specifications of viaduct bridge steel structure

Project type: main street viaduct steel structure

The steel dosage: 2760MTs

Building area: 1116M2

The unit component weight: 25.6MTs

Bridge wide: 24M

The long span: 30-35m

Viaduct is from the West Second Ring Road to East Second Ring Road, a total length of 11.55 kilometers, the bridge 24 meters wide, two-way six-lane

1. GB standard material

2. High Structural safety and reliability

3. The production can reach GB/JIS/ISO/ASME standard

Packaging & Delivery of viaduct bridge steel structure

1. According to the project design and the component size, usually the main component parts are nude packing and shipped by bulk vessel. And the small parts are packed in box or suitable packages and shipped by containers.

2. This will be communicated and negotiated with buyer according to the design.

Engineering Design Software of viaduct bridge steel structure

Tekla Structure \ AUTO CAD \ PKPM software etc

⊙Complex spatial structure project detailed design

⊙Construct 3D-model and structure analysis. ensure the accuracy of the workshop drawings

⊙Steel structure detail ,project management, automatic Shop Drawing, BOM table automatic generation system.

⊙Control the whole structure design process, we can obtain higher efficiency and better results

Technical support of viaduct bridge steel structure


Rate of frontline workers with certificate on duty reaches 100%


186 welders got AWS  & ASME qualification

124 welders got JIS  qualification

56 welders got DNV &BV qualification



40 inspectors with UT 2 certificate

10 inspectors with RT 2 certificate

12 inspectors with MT 2 certificate

3 inspectors with UT3 certificate


21 engineers with senior title

49 engineers with medium title

70 engineers with primary title.

61 First-Class Construction Engineers

182 Second-Class Construction Engineers

International certification

10 engineers with International Welding engineer,

8 engineers with CWI.

Production Flow of steel structure

Material preparation—cutting—fitting up—welding—component correction—rust removal—paint coating—packing—to storage and transportation (each process has the relevant inspection)

 steel structure cube column production line  steel structure component fitting-up machine

steel structure square column production line

steel structure component fitting-up machine

Usage/Applications of steel structure

*Characters of Structure Steel

1. Steel is characterized by high strength, light weight, good rigidity, strong deformation capacity, so it is suitable for construction of large-span, super high and super-heavy buildings particularly;

2. It with good homogeneous and isotropic, is an ideal elastomer which perfectly fits the application of general engineering;

3. The material has good ductility and toughness, so it can have large deformation and it can well withstand dynamic loads;

4. Steel structure’s construction period is short;

5. Steel structure has high degree of industrialization and can realize-specialized production with high level of mechanization.

*Steel structure application

1. Heavy industrial plants: relatively large span and column spacing; with a heavy duty crane or large-tonnage cranes; or plants with 2 to 3 layers cranes; as well as some high-temperature workshop should adopt steel crane beams, steel components, steel roof, steel columns, etc. up to the whole structure.

2. Large span structure: the greater the span of the structure, the more significant economic benefits will have by reducing the weight of the structure

 steel structure bridge

3. Towering structures and high-rise buildings: the towering structure, including high-voltage transmission line towers, substation structure, radio and television emission towers and masts, etc. These structures are mainly exposed to the wind load. Besides of its light weight and easy installation, structure steel can bring upon with more economic returns by reducing the wind load through its high-strength and smaller member section.

4. Structure under dynamic loads: As steel with good dynamic performance and toughness, so it can be used directly to crane beam bearing a greater or larger span bridge crane

5. Removable and mobile structures: Structure Steel can also apply to movable Exhibition hall and prefabricated house etc by virtue of its light weight, bolt connection, easy installation and uninstallation. In case of construction machinery, it is a must to use structure steel so as to reduce the structural weight.

6. Containers and pipes: the high-pressure pipe and pipeline, gas tank and boiler are all made of steel for the sake of its high strength and leakproofness

7. Light steel structure: light steel structures and portal frame structure combined with single angle or thin-walled structural steel with the advantages of light weight, build fast and steel saving etc., in recent years has been widely used.

 light steel structure for prefab house

8. Other buildings: Transport Corridor, trestle and various pipeline support frame, as well as blast furnaces and boilers frameworks are usually made of steel structure.

All in all, according to the reality, structure steel is widely used for high, large, heavy and light construction.

The purpose of steel beams in a structure is to provide strength, support, and stability to the overall construction. Steel beams are known for their exceptional load-bearing capacity, making them ideal for withstanding heavy loads and transferring them safely to the foundation or other load-bearing elements of the structure. Steel beams are commonly used in various types of buildings such as skyscrapers, bridges, warehouses, and residential homes. They serve as essential structural components, often forming the skeleton or framework of the building. By distributing the weight and stress evenly, steel beams help ensure the stability and integrity of the structure, preventing it from collapsing or deforming under its own weight or external forces such as wind, earthquakes, or snow loads. Moreover, steel beams offer flexibility in design and construction. With their high strength-to-weight ratio, steel beams can span longer distances without the need for additional support columns or walls, allowing for open and spacious interior layouts. This versatility allows architects and engineers to create innovative designs and maximize usable space. In addition to their structural role, steel beams also contribute to the fire resistance of the building. Steel is a non-combustible material and has a high melting point, making it highly resistant to fire. When properly coated or protected, steel beams can maintain their structural integrity even in high-temperature environments, providing valuable time for occupants to evacuate and firefighters to control the fire. Overall, the purpose of steel beams in a structure is to ensure the safety, stability, and longevity of the building, while also allowing for efficient and flexible design possibilities.
Steel structures for parking garages are designed by considering factors such as the number of floors, column spacing, and the weight and size of vehicles to be accommodated. The design process involves determining the appropriate size and spacing of steel beams, columns, and braces to provide adequate support and stability. Additionally, considerations are made for load-bearing capacity, earthquake resistance, and fire safety. Computer modeling and structural analysis software are often used to ensure the structural integrity and efficiency of the design.
There are several ways in which steel structures can be designed to effectively utilize renewable energy sources. Firstly, solar panels can be integrated into the structure's design, either on the roof or walls. These panels can capture sunlight and convert it into electricity, which can be used to power the building or be fed back into the grid. By incorporating solar panels, the building can generate clean and sustainable energy, reducing its reliance on fossil fuels. Moreover, steel structures can be designed to optimize natural lighting and ventilation. Strategically placed large windows and skylights allow for ample natural light, decreasing the need for artificial lighting during the day. This not only saves energy but also creates a pleasant and productive indoor environment. In terms of ventilation, steel structures can be designed with features such as operable windows or louvers that facilitate natural airflow. This promotes natural cooling and reduces the necessity for air conditioning, especially in moderate climates. By leveraging natural ventilation, the building can minimize its energy consumption and dependence on mechanical cooling systems. Another method to efficiently utilize renewable energy sources in steel structures is by integrating wind turbines. These turbines can be installed on the roof or adjacent to the building, harnessing the power of wind to generate electricity. Vertical axis wind turbines are particularly suitable for urban environments and can be easily incorporated into the design of steel structures. Finally, steel structures can also be designed to capture and reuse rainwater. By integrating rainwater harvesting systems into the building's design, rainwater can be collected and stored for non-potable uses such as irrigation or toilet flushing. This reduces the demand for freshwater and conserves water resources. In conclusion, steel structures can be designed in various ways to effectively utilize renewable energy sources. By incorporating solar panels, maximizing natural lighting and ventilation, integrating wind turbines, and implementing rainwater harvesting systems, these structures can significantly reduce their carbon footprint and contribute to a more sustainable and environmentally friendly built environment.
When designing steel roof structures, it is essential to take into account various common design considerations. These considerations encompass the following aspects: 1. Load capacity: The ability of steel roof structures to endure different loads, including dead loads, live loads, and environmental loads, without the risk of failure, must be carefully considered. 2. Span and spacing: The specific requirements of the building and the intended use of the roof determine the span and spacing of the steel roof structure. Adequate support and stability can be ensured by considering the desired clear span and spacing of the structural members. 3. Roof pitch: The pitch or slope of the roof significantly impacts the overall aesthetic appeal, drainage performance, and structural integrity of the roof. To prevent leaks and structural damage, the pitch must be determined carefully to avoid water pooling. 4. Roof covering: The design of the steel roof structure is influenced by the type of roof covering chosen, such as metal panels, shingles, or tiles. The weight and installation requirements of the selected roof covering must be accommodated in the design. 5. Thermal expansion and contraction: Temperature changes cause steel to expand and contract. To prevent stress and potential failure, the design should consider thermal movements and incorporate techniques like expansion joints or proper fastening systems. 6. Fire resistance: Meeting fire resistance requirements is crucial when designing steel roof structures. This may involve using fire-resistant materials or coatings and integrating fire protection systems like sprinklers. 7. Corrosion protection: Steel is susceptible to corrosion, particularly in outdoor or humid environments. To ensure the longevity and durability of the roof structure, appropriate corrosion protection measures such as protective coatings or galvanization must be incorporated into the design. 8. Accessibility and maintenance: The design should take into consideration the accessibility of the roof for maintenance purposes, such as cleaning or repair. Safe and easy access points and walkways can be included to facilitate ongoing maintenance and inspection of the roof structure. By considering these design considerations, engineers and architects can create steel roof structures that are not only safe and functional but also visually appealing, while meeting the specific requirements of the building and its occupants.
Extreme weather conditions can have a significant impact on steel structures. For example, hurricanes or tornadoes with strong winds can exert immense pressure on the structure, potentially causing bending or even collapse if the structure is not properly designed or constructed. Additionally, heavy snowfall can add a substantial amount of weight to the roof and other parts of the structure, which can lead to failure. On the other hand, extreme heat can cause steel structures to expand, resulting in warping or distortions. This expansion can also weaken connections and joints, compromising the overall structural integrity. Furthermore, steel is prone to corrosion, and extreme weather conditions like heavy rain or high humidity can accelerate this process. Corrosion weakens the steel, making it more susceptible to failure. To minimize the impact of extreme weather conditions on steel structures, it is crucial to have proper design, construction, and maintenance. Designing structures to withstand anticipated wind loads, ensuring sufficient connections and reinforcements, and using corrosion-resistant coatings are all important measures. Regular inspections and maintenance to detect and address any signs of damage or corrosion are also essential for ensuring the longevity and safety of steel structures.
Steel structures are designed to accommodate building movement through various methods. One common approach is to incorporate expansion joints, which allow the structure to expand and contract with temperature changes without causing damage. Additionally, steel structures often utilize flexible connections, such as bolted or welded connections, that can absorb and distribute forces caused by movement. The use of dampers, such as viscous dampers or tuned mass dampers, is another way to mitigate building movement by absorbing and dissipating energy. Overall, steel structures are carefully designed to ensure their stability and durability while accommodating the expected movement during their lifespan.
Steel structures are designed to withstand wind uplift loads by employing various design techniques and considerations. These are aimed at ensuring the structural integrity and stability of the steel framework under the influence of strong wind forces. Firstly, the design process typically involves calculating the expected wind loads based on the specific location and environmental conditions. This is done in accordance with recognized national or international codes and standards, such as the American Society of Civil Engineers (ASCE) 7 or Eurocode 1. The design of steel structures for wind uplift loads takes into account factors such as the shape and height of the building, its exposure to the wind, and the expected wind speed. These factors are considered to determine the wind pressure that the structure will experience. To resist wind uplift forces, engineers employ a combination of structural elements and connections. The structural elements, such as beams, columns, and braces, are designed to have sufficient strength and stiffness to withstand the wind loads. They are often designed as trusses or frames to efficiently distribute the forces and minimize deformations. The connections between the structural elements are designed to ensure their integrity and transfer the applied forces. These connections are typically bolted or welded and are designed to resist both tension and compression forces. Special attention is given to the connection design, as it can significantly affect the overall strength and stability of the structure. In addition to the structural elements and connections, other design considerations are also important. These include the use of appropriate materials with high strength-to-weight ratios, the consideration of aerodynamic shapes to minimize wind resistance, and the use of bracing systems or shear walls to enhance overall stability. Furthermore, computer-aided design and analysis tools are utilized to simulate the behavior of the structure under wind loads. This allows engineers to optimize the design and identify potential areas of concern, such as areas with high stress concentrations or excessive deflections. Overall, the design of steel structures for wind uplift loads is a complex process that requires careful analysis and consideration of various factors. Through a combination of appropriate design techniques, materials, and connections, steel structures can be effectively designed to withstand the forces imposed by strong winds.
When designing steel structures in areas with high seismic hazard, several important considerations need to be taken into account. Firstly, the structure must be designed to withstand the strong shaking and ground motion caused by earthquakes. This involves selecting appropriate steel materials and components that have the necessary strength and ductility to resist deformation and absorb seismic energy. Secondly, the structural design should incorporate proper lateral load-resisting systems, such as moment frames, braced frames, or shear walls, to ensure stability during seismic events. These systems should be carefully detailed and arranged to distribute forces evenly throughout the structure, minimizing localized stress concentrations. Additionally, the foundation of the steel structure should be engineered to withstand the ground shaking and potential soil liquefaction that can occur during earthquakes. Soil conditions, site-specific geotechnical investigations, and proper foundation design techniques should be considered to ensure stability and prevent foundation failure. Furthermore, attention must be given to the connections between steel members and components. These connections should be designed to provide adequate strength, stiffness, and ductility to allow for energy dissipation and prevent sudden failure. Lastly, it is crucial to comply with local building codes, regulations, and standards specific to seismic design. These codes outline minimum requirements for structural design and construction practices in high seismic hazard areas, ensuring the safety and resilience of steel structures. In summary, designing steel structures in areas with high seismic hazard requires considering the strength and ductility of materials, incorporating appropriate lateral load-resisting systems, designing stable foundations, ensuring robust connections, and adhering to local building codes.
The guidelines for the construction and erection of steel structures are crucial for ensuring the safety, integrity, and durability of the finished structures. These guidelines are established by professional organizations, such as the American Institute of Steel Construction (AISC), and are based on industry best practices and relevant building codes and regulations. First and foremost, it is essential to conduct a thorough structural analysis and design of the steel structure. This involves determining the loads and forces the structure will be subjected to, and designing the members and connections to withstand these loads safely. Structural engineers use various mathematical calculations and computer-aided design (CAD) software to ensure the structural integrity of the steel structure. Next, the fabrication and welding of the steel members must adhere to specific guidelines to ensure quality and strength. Fabrication involves cutting, drilling, and shaping the steel components according to the approved design. Welding, which is a critical process in steel construction, must be performed by certified welders using approved welding procedures. The quality and integrity of the welds are vital for the overall strength and stability of the steel structure. During the erection phase, proper planning and coordination are essential. The erection sequence should be carefully planned to ensure the stability and integrity of the structure. It is crucial to follow the detailed erection drawings and instructions provided by the structural engineer or project manager. Adequate supervision and coordination among the construction team are necessary to avoid errors or unsafe conditions during the erection process. Safety is of utmost importance during the construction and erection of steel structures. All workers involved in the process must follow strict safety protocols and wear appropriate personal protective equipment (PPE). Additionally, proper equipment and machinery should be used for lifting and placing the steel components to prevent accidents or damage to the structure. Regular inspections and quality control measures should be implemented throughout the construction and erection process. Inspections help identify any issues or defects that may affect the integrity of the structure. Non-destructive testing techniques, such as ultrasonic testing or magnetic particle inspection, can be used to detect any hidden defects or weaknesses in the steel components. Finally, documentation and record-keeping are crucial for ensuring compliance with regulations and standards. All relevant design calculations, fabrication records, welding certifications, and inspection reports should be properly documented and maintained for future reference. In summary, the guidelines for the construction and erection of steel structures cover various aspects, including structural analysis and design, fabrication and welding, erection planning and coordination, safety protocols, inspections, and documentation. Following these guidelines is vital for ensuring the safety, durability, and quality of steel structures.
Steel structures can contribute significantly to the overall energy performance of a building in several ways. Firstly, steel is a highly efficient material when it comes to conducting and distributing heat, which can help in maintaining a comfortable indoor temperature. Steel's thermal conductivity allows for quick and efficient transfer of heat, reducing the need for excessive heating or cooling systems. Additionally, steel structures can be designed to provide excellent insulation properties. By incorporating insulation materials within the steel framework, buildings can minimize heat loss during cold weather and reduce heat gain during hot weather. This insulation helps to create a more energy-efficient envelope, reducing the reliance on heating and cooling systems and ultimately lowering energy consumption. Steel structures also enable the construction of larger open spaces and larger windows, allowing for more natural light to enter the building. Natural light not only reduces the need for artificial lighting but also has numerous health benefits for occupants. By maximizing the use of natural light, steel structures can reduce the energy demand for lighting, further contributing to the overall energy performance of the building. Moreover, steel is a durable and long-lasting material, requiring minimal maintenance over its lifespan. This durability reduces the need for frequent repairs or replacements, resulting in less energy consumption associated with maintenance activities. Lastly, steel is a recyclable material, meaning that at the end of a building's life cycle, the steel used in its construction can be recycled and repurposed. This reduces the demand for new steel production, which is an energy-intensive process. By incorporating steel structures that can be easily recycled, buildings can contribute to a more sustainable and energy-efficient construction industry. In conclusion, steel structures contribute to the overall energy performance of a building by providing efficient heat transfer, excellent insulation, maximizing natural light, minimizing maintenance requirements, and promoting recycling. These factors combine to create a more energy-efficient building, reducing energy consumption and promoting sustainability.
STLA is a leading manufactuer of steel structure.The annual steel structure production capacity is 400 thousand tons. We are obtained China steel structure manufacture enterprise super-grade qualification; Industrial and civil building engineering general contracting qualifications of Class One ; Steel structure engineering general contracting qualifications of Class One ;Construction project integrated design qualification of Class One and Overseas project contracting business qualification.

1. Manufacturer Overview

Location SHANDONG,China
Year Established 2008
Annual Output Value Above US$20 Billion
Main Markets
Company Certifications ISO9001:2008;ISO14001:2004

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Export Percentage 0.6
No.of Employees in Trade Department 3400 People
Language Spoken: English;Chinese
b)Factory Information  
Factory Size: Above 150,000 square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range Average, High

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