the sloping approach slabs and reinforcing approach pavement,have been proposed to avoid these problems for short or medium integral abutment bridges,thus absorbing the bridge thermal movement.

Analytical solution of inclined rectangle board under vertical and horizontal load

To the mechanical model of inclined rectangle board subjected to forces acting vertically and horizontally,corresponding loading potential energy and the analytical solution of deflection and stress,considering the influence of inner force in central surface on the bend of the board,were given by using the theory of board and energy method.

Mechanics property and adaptability of approach slab;

With the typical geological condition and road filling in Ningbo, the causes for bump at bridge head are analyzed and proposals recommended, using CMC jointly with the approach slab to solve the problem by reducing differential settlement at the abutment.

In this paper, finite element method is employed to analyze the mechanical behaviors of approach slabs between bridge abutment and pavements subject to axle loadings.

In this paper with introduction on the design method of abutment back in China and abroad and based upon the united design principle of bridges, culverts and abutment back the butt strap method is introduced from slope gradient, length, thickness, reinforcement and other aspects.