Steel-concrete composite beams have been widely used in the high-rise buildings and large span steel structure. Composite beams effective flange width has been further investigated in domestic, as well as the force and deformation within elastic stage and plastic stage.

Steel-concrete composite beams give full paly yo the advantages of steel and concrete material. It is light weight, efficient, and applicable to large span. . The composite beam is mainly used in high-rise building and large span steel structure building at home and abroad. Commonly used for of composite slabs are concrete slabs, steel sheeting concrete floor and steel truss for floor plate; and H-shaped steel composite form is often used in cast-in -place steel -concrete compoisite beams .

Zhenjiang Tongkai Mechanical Engineering Co., Ltd. is a company specializing in the production and exporting of steel bridges, steel structures and other machined parts. The company's main products include modular steel bridges, steel truss bridges, and steel structure products; Tongkai products are widely used in various industries with their excellent quality and advanced design. They not only have a large sales market in China, but also are exported to Southeast Asia, Africa, South America and other countries.

The company has a wealth of management personnel, skilled design and experienced construction team, proficient in the application of CAD, MIDAS CIVIL, SolidWorks software； With a purpose of " first quality, promptly delivery, customer first, reputation as the base, we will provide you with a variety of products. Our products, regardless of the size of the project, are all can be customized according to customer requirements and structural drawings. We have the strength to do better for you with a reasonable price, first-class quality, first-class service and first-class reputation!

After several years of production, operation and exploration, Tongkai has established its own quality management system, which has passed ISO9001: 2015 quality system certification, EN1090 EU CE certification, and ISO3834 welding certification. Tongkai always implements the concept of customer value creation, customize products for customers to meet the needs of different customers, and continuously provides customers with solutions and technologies to solve problems.