广东公路交通
廣東公路交通
엄동공로교통
GUANGDONG HIGHWAY COMMUNICATIONS
2011年
4期
20-23
,共4页
连续箱梁%下挠%开裂%加固
連續箱樑%下撓%開裂%加固
련속상량%하뇨%개렬%가고
light-weight concrete%external prestressing
针对大跨度预应力混凝土连续箱梁在运营期间出现的长期下挠及底板、腹板混凝土开裂等病害,简要介绍了体外预应力和轻质混凝土减载相结合的加固方案。
針對大跨度預應力混凝土連續箱樑在運營期間齣現的長期下撓及底闆、腹闆混凝土開裂等病害,簡要介紹瞭體外預應力和輕質混凝土減載相結閤的加固方案。
침대대과도예응력혼응토련속상량재운영기간출현적장기하뇨급저판、복판혼응토개렬등병해,간요개소료체외예응력화경질혼응토감재상결합적가고방안。
In view of the diseases of long-term deflection and cracks at the bottom and Web concrete of the large span prestressed concrete continuous box girder in operation,the reinforcing method combining external prestressing with light-weight concrete load reduction has been briefly introduced.
