The general formulas of internal forces and displacements of skewly supported single-spanbeam are deduced from the energy principle.
首先从能量原理出发，推导了斜支单跨梁内力及变形计算的一般公式。
2
Single-girder bridge by a single main beam and in the end beam span both sides of the composition, dual-beam bridge consists of two main beams and side beams formed.
单主梁桥架由单根主梁和位于跨度两边的端梁组成，双梁桥架由两根主梁和端梁组成。
3
Calculating the continuous beam, frame of single-span and multi-story by deflection method, the stiffness matrix is symmetrical three-diagonal.