通过计算某高速公路的汽车撞击力,并与规范值比较,选取较大值对桥墩防撞性能进行验算。模拟设在中央分隔带内的桥墩及其桩基进行受力分析,当桥墩横向联系不强时,简化为单个墩柱受力;当桥墩横向联系较强时,则为框架式桥墩受力。通过定量的计算显示,加强桥墩的横向联系能够有效的提高桥墩防撞能力。 By calculating the impact force of a car on a highway and comparing it with the standard value, the larger value is selected to check the crashworthiness of the pier. Simulating the bridge piers and their pile foundations in the central divider zone, the stress analysis is simplified. When the pier crossings are not strong, it is simplified as a single piers force. When the bridge piers have strong lateral connection, the frame piers are forced. Quantitative calculation shows that strengthening the lateral contact of piers can effectively improve the anti-collision capability of piers.