How Does EVERCROSS Bridge Ensure US Export Compliance?

Recently, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD., a professional integrated industrial and trade enterprise focusing on steel structure bridge export, has been highly recognized by global clients for its strict adherence to US bridge design and weld standards, and its professional design and production capabilities. As a key force in the steel structure bridge export industry, the company has always taken product safety and compliance as the core, and made every effort to provide high-quality, reliable and compliant bridge solutions for clients entering the US market.

Why Choose EVERCROSS? Integrated R&D, Production & Sales

EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. is an integrated industrial and trade enterprise specializing in the export of steel structure bridges, with a clear division of functional sectors to ensure efficient operation and high-quality service. The company’s headquarters and sales center are located in Shanghai, a global trade hub, which provides convenient conditions for efficient communication with global clients, timely response to client needs, and provision of professional pre-sales consultation and after-sales support.

The company’s production bases are located in Zhenjiang, Jiangsu Province, covering a large area and equipped with advanced production equipment and precision testing facilities, laying a solid foundation for the production of high-quality steel structure bridges. In addition, the company has a professional R&D team composed of senior engineers and technical experts with years of experience in steel structure bridge design, welding technology and material research. The team keeps abreast of the latest international standards and technological trends, and is committed to technological innovation and scheme optimization, ensuring that the company’s products and solutions can fully meet the diverse needs of global clients, especially the strict technical requirements of the US market.

Why US Bridge Weld Standards Matter for Export?

For steel structure bridges exported to the United States, compliance with local bridge design and weld standards is not only a basic prerequisite for market access, but also a key guarantee for the safety, durability and service life of bridges. As a professional export enterprise, EVERCROSS BRIDGE has a deep understanding of this, and takes US bridge weld standards as the core of its quality control system, closely integrating them into every link of design, production and testing.

The US bridge weld standards, with AWS D1.5 Bridge Welding Code as the core, are jointly issued by the American Welding Society (AWS) and the American Association of State Highway and Transportation Officials (AASHTO), and are recognized as the mandatory standard for highway bridge welding in the United States. This standard, together with the AASHTO LRFD Bridge Design Specifications, constitutes a complete technical system for US bridge design and construction, and is an indispensable part of the company’s design calculations and product manufacturing.

How to Safeguard Bridge Durability? Strict Fatigue Calculation

Fatigue failure is one of the main forms of damage to steel structure bridges, as bridges are subjected to long-term cyclic loads such as vehicle traffic. In order to ensure the long-term safe operation of bridges, EVERCROSS BRIDGE strictly implements the fatigue calculation parameters specified in US bridge weld standards in its design and calculation process, and clearly reflects them in the bridge safety calculation report.

According to AWS D1.5 and AASHTO standards, the company classifies weld details into different fatigue categories (such as Category A, Category E) based on weld form, connection method and stress state. For each category, the standard specifies nominal fatigue resistance, stress range limits and fatigue life calculation formulas, which are fully implemented in the company’s calculation process. For example, the fillet welds between the flange and web of bridge girders are usually classified as Category A, with the ultimate tensile strength of the electrode (such as E70) reaching 71.79 ksi, and the allowable stress range strictly controlled within the standard limit. For welded cover plates on tension flanges (Category E fatigue details), the nominal fatigue resistance for infinite life is 2.6 ksi, and the company calculates the effective stress range based on actual traffic load (such as ADTT, average number of trucks per day) to evaluate fatigue life, ensuring that it meets design requirements.

How to Ensure US Standard Compliance? Full-Process Quality Control

As an integrated industrial and trade enterprise, EVERCROSS BRIDGE not only pays attention to the compliance of design standards, but also strictly implements US bridge weld standards in the production process. All welders in the Zhenjiang production base hold AWS Certified Welder (CW) certificates, having passed strict training and assessment in accordance with AWS B5.1 standards, and mastered the welding technology and operation requirements specified in AWS D1.5.

In the production process, the company strictly controls key welding parameters such as preheating temperature, interlayer temperature, heat input and welding speed to ensure the quality of each weld. At the same time, strict non-destructive testing (NDT) is carried out in accordance with standards, including 100% ultrasonic testing (UT) for complete joint penetration (CJP) welds in fracture critical members, and magnetic particle testing (MT) or penetration testing (PT) for fillet welds and surface defects, so as to detect potential weld defects in a timely manner and ensure that weld quality meets US standard requirements.

Your US Export Concerns? 

In order to help global clients better understand the company’s services and the application of US bridge weld standards, EVERCROSS BRIDGE has sorted out the most concerned questions of clients and given detailed answers:

Q1: Does EVERCROSS BRIDGE have the ability to design and produce steel structure bridges that fully comply with US bridge weld standards?

A1: Absolutely. Our R&D team has in-depth research on US bridge weld standards such as AWS D1.5 and AASHTO, and our production base in Zhenjiang is equipped with advanced production and testing equipment. All welders hold AWS CW certificates. We have successfully completed many export projects to the US, and all products have passed the strict inspection of US clients and relevant institutions, fully complying with US standards.

Q2: Will the fatigue calculation parameters of welds be clearly reflected in the bridge safety calculation report?

A2: Yes. In strict accordance with AWS D1.5 and AASHTO standards, we will clearly list all fatigue calculation parameters in the calculation report, including weld fatigue category, nominal fatigue resistance, stress range, ADTT (average number of trucks per day), fatigue life calculation process and results. This allows clients to clearly understand the fatigue performance of the bridge and easily pass relevant inspections and certifications in the US market.

Q3: What advantages does EVERCROSS BRIDGE have as an integrated industrial and trade enterprise in the export of steel structure bridges to the US?

A3: As an integrated industrial and trade enterprise, we have three obvious advantages: first, the integration of R&D, production, sales and after-sales services enables effective control of product quality and delivery cycle; second, the sales center and R&D in Shanghai ensures efficient communication with clients, and the production base in Zhenjiang can quickly respond to production needs; third, rich experience in complying with US standards helps clients avoid market access risks and reduce project costs.

Q4: Can your company provide customized solutions according to the specific load requirements of our bridge project?

A4: Of course. Our professional R&D team will design customized bridge solutions according to clients’ specific load requirements, geographical environment and project needs. We will strictly calculate and verify the strength, stability and fatigue performance of the bridge in accordance with US standards, ensuring that the solution is both practical and compliant.