Aiming at the problem of detection,evaluation and utilization of 25 m prestressed concrete hollow slab in expressway recon-struction and expansion project,the methods of disease analysis,bearing capacity check and bridge load test are used to detect and e-valuate.The results show that the existing 25 m prestressed concrete hollow slab is short of the ultimate bearing capacity under the cur-rent load standard,but the structure status is good and the static load test results can meet the requirements of the standard.Consider-ing the current situation of the existing 25 m prestressed concrete hollow slab,the difficulty of reinforcement and the cost of reinforce-ment,the reinforcement and treatment plan of reinforced steel plate and reformed bridge floor is put forward,which is simple in con-struction and saves the construction cost of the reconstruction and expansion project.
关键词
改扩建/空心板/检测评估/拼宽利用/加固处治
Key words
reconstruction and expansion/hollow slab/detection and evaluation/splicing and utilization/reinforcement and treatment
维普
万方数据