The conceptions contain: design conception of whole prestress, partial prestress design conception, design conception of prestress equilibrium load and un agglutinating partial prestress.

• 介绍了预应力混凝土技术的几种设计概念,即全预应力设计概念、部分预应力设计概念、预应力筋平衡荷载的设计概念、无粘结部分预应力。