Steel-concrete composite slim floors with the steel beam encased in concrete floor slabs have many advantages,including low structural height,high fire resistance and rapid construction times.

A solid 3D FE model of monolithic steel-concrete composite slim floor is established by the ANSYS software package in the present paper.

In this paper,the membrane behavior of steel-concrete composite slim floor is investigated.

For the steel-concrete composite slim floors,the deck shape has a significant influence on the loading capacity of the composite slim floor with deep deck and the rationalization of deck shape will not only improve the loading capacity of composite slim floors,but also bring on a good economic performance.

Analysis of prestressed concrete flat beam-waffle slab system;

During the prestressing of the unbonded prestressed concrete wide flat beam-waffle slab system, the displacements and strains of slab and the prestressed concrete beams were site-measured.

Factors analysis on effective width of simply supported composite slim beam;

Nonlinear finite element analysis on flexural loading capacity of composite slim beam with deep deck;

Loading capacity of composite slim beam in the sagging moment region;

Reinforced concrete composite flat beams can not only well meet the requirements in architecture significantly reduce the structural floor height and enclosure expenditures as well as foundation loads but also cut down steel consumption and costs of the structure.

With reference to the structural design of one multi story lightweight steel house,the authors mainly discuss how to design the composite flat beams in large bay buildings.