1·The design scheme of the corbel between the old column and the new beam in the strengthening projects is discussed in detail, and a simple and reliable scheme that USES the bracket is recommended.
通过对加固改造中旧柱新梁节点设计方案的详细讨论，推荐了新增牛腿这种简单可靠的方案。
2·Current code for design of concrete structure (GB50010—2002) is relatively safe in setting down the corbel's height, horizontal longitudinal reinforcing steel bar and stirrup.
现行的钢筋混凝土结构设计规范GB50010—2002对于牛腿高度、水平纵向钢筋和箍筋的确定方法是偏安全的。
3·Test showed that the cracking load, the strength and the deformation capacity of the corbel thus strengthened were all increased in some degree.
试验征明，牛腿采用上述方法加固后，其抗裂度、强度和变形能力均有不同程度的提高。
4·As an important part of superstructure of cantilever beam system, corbel's stress state is very complex.
牛腿是悬臂体系梁桥上部构造的一个重要组成部分，其应力状态较为复杂。