Beam-column connections的用法和样例：
例句
- Most beam-column connections used in multi-story frames are semirigid joints.
半刚性连接是目前高层钢结构建筑中常用的一种梁柱连接形式。 - The ductility of the beam-to-column connections can be improved significantly by removing the backing bar from the structure.
移去焊接衬板，可以有效地改善梁柱连接的受力性能，提高其延性和耗能能力。
