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阐述箱形梁撑杆加宽法和梁撑杆加宽法在预应力混凝土桥梁规划、设计及既有桥加宽中的具体应用。两种方法能方便地对预应力混凝土桥梁实施加宽,使其适应未来交通量增长的需要。
The concrete application of box girder strut widening method and beam strut widening method in the planning, design and existing bridge widening of prestressed concrete bridge are described. Both methods can easily broaden the prestressed concrete bridges to meet the need of future traffic growth.