By using the test result of an model s free vibrating frequency and vibrating form,the free vibrating characteristic and disciplinarian of curve arch bridge are analyzed.

• 弯拱桥作为一种空间结构物,其自由振动也呈现出空间特性,通过对弯拱桥模型的自振频率及振型的测试,分析了模型的自振特性及自振规律。