In this paper,the response spectrum for an arch bridge is performed,and the influence of the locations of the expansion joint and the fixed pier on the seismic response of the bridge is evaluated.

Finite element analysis of push force exerted on fixed anchorage near buried piping elbow;

When the buried transmission piping is built, the major temperature difference of piping when being placed and when working makes it necessary to lay a fixed anchorage so as to limit the expanding displacement.

Based on geometrical nonlinearity, equations for calculating internal forces and deflections of aerial crossing pipelines with anchor blocks at both ends are derived, in which simple, practical ones are recommended for design calculation.

The article introduces the stress, calculation method of fixed buttress and the treatment method in the case of relatively bigger pipeline thrust.

This paper analysed the stress state of directly buried heating piping fixed buttress, expounded the principle and method of selfblanced method optimum design directly buried heating piping fixed buttress.