板式桥梁加宽设计

摘要

Taking a 3 - 20m medium bridge of Zhangshi Expressway as an example, problems needing atten- tions, selection of widening scheme and design in old bridge widening design are elaborated, providing references for widening design of similar bridges.%以张石高速公路3—20m中桥为例，对旧桥加宽设计中应该注意的问题、加宽方案的选择及其设计进行了阐述，为同类型桥梁的加宽设计提供参考。