电厂结构检测鉴定及加固过程中常见问题及解决办法
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摘要
大型火力发电厂作为生命线工程，在我国国民经济建设过程中具有举足轻重的作用。
火力发电厂结构因工艺原因具有很强的行业特点，比如：平面刚度不均匀；竖向刚度不均匀；强梁弱柱大量出现；不同种类构件共同使用；振动问题严重等。这些问题的出现也造成了针对电厂结构进行的检测、鉴定和加固的特殊性，比如：没有合适的标准和规范可供使用；检测、鉴定和加固应考虑电厂结构的特殊性；要考虑电力行业的特殊要求等。
本文以河南平顶山姚孟电厂1#机组的检测鉴定和加固为例，全面介绍电厂结构的检测鉴定情况。针对电厂结构的特点，对现有加固方法做详细分析，根据外包钢加固节点和长、短柱的试验结果，提出适用于电厂结构的加固方法。同时分析了锅炉架柱子计算时面临的困难并提出了解决方案；讨论了电厂结构加固时选用材料的要求；粘钢加固时应注意的问题；节点的加固处理等。
对将要制订的适用于电厂结构的检测、鉴定和加固技术规范或标准，本文所做的工作可提供一些基础资料供参考使用。
Large power plants, as lifeline engineering, take a prominent role in national economic development.
Power plant structures have very strong professional characteristics because of its craft reasons, for example, the plane stiffness and vertical stiffness are not uniform, strong beam and weak column structures are often used, different types of members are used together, and the vibration problems are very serious, etc. All of this make the inspecting and appraising and strengthening of power plant structures have special characteristics, such as, there have no appropriate codes or standards to be used, the particularities of power plant structures and the special requirements of power industry must be thought about.
The paper describes comprehensively the inspecting and appraising and strengthening of power plant structures based on the No.1 set of Yao Meng power plant, Ping Ding Shan, He Nan. The paper detailed analyses the present strengthening methods according to the characteristics of power plant structures, and provides strengthening methods adapting to power plant structures according to the testing results of strengthening joints packed steel outside, and that of long column and short column, similarity, the difficulties calculating the column of boiler are analysed, and the solutions are provided. Except that, the material requirements and the problems that must be attentioned when using glue steel strengthening and the joints strengthening are also discussed.
The paper may provide some basic reference materials for the laying out of the inspecting and appraising and strengthening technical code or standards adapting to power plant structures.
火力发电厂结构因工艺原因具有很强的行业特点，比如：平面刚度不均匀；竖向刚度不均匀；强梁弱柱大量出现；不同种类构件共同使用；振动问题严重等。这些问题的出现也造成了针对电厂结构进行的检测、鉴定和加固的特殊性，比如：没有合适的标准和规范可供使用；检测、鉴定和加固应考虑电厂结构的特殊性；要考虑电力行业的特殊要求等。
本文以河南平顶山姚孟电厂1#机组的检测鉴定和加固为例，全面介绍电厂结构的检测鉴定情况。针对电厂结构的特点，对现有加固方法做详细分析，根据外包钢加固节点和长、短柱的试验结果，提出适用于电厂结构的加固方法。同时分析了锅炉架柱子计算时面临的困难并提出了解决方案；讨论了电厂结构加固时选用材料的要求；粘钢加固时应注意的问题；节点的加固处理等。
对将要制订的适用于电厂结构的检测、鉴定和加固技术规范或标准，本文所做的工作可提供一些基础资料供参考使用。
Large power plants, as lifeline engineering, take a prominent role in national economic development.
Power plant structures have very strong professional characteristics because of its craft reasons, for example, the plane stiffness and vertical stiffness are not uniform, strong beam and weak column structures are often used, different types of members are used together, and the vibration problems are very serious, etc. All of this make the inspecting and appraising and strengthening of power plant structures have special characteristics, such as, there have no appropriate codes or standards to be used, the particularities of power plant structures and the special requirements of power industry must be thought about.
The paper describes comprehensively the inspecting and appraising and strengthening of power plant structures based on the No.1 set of Yao Meng power plant, Ping Ding Shan, He Nan. The paper detailed analyses the present strengthening methods according to the characteristics of power plant structures, and provides strengthening methods adapting to power plant structures according to the testing results of strengthening joints packed steel outside, and that of long column and short column, similarity, the difficulties calculating the column of boiler are analysed, and the solutions are provided. Except that, the material requirements and the problems that must be attentioned when using glue steel strengthening and the joints strengthening are also discussed.
The paper may provide some basic reference materials for the laying out of the inspecting and appraising and strengthening technical code or standards adapting to power plant structures.
引文
[1] 中国建筑工业出版社，《建筑结构荷载规范》(GBJ9-87)；
[2] 中国建筑工业出版社，《砼结构设计规范》(GBJ10-89)；
[3] 中国建筑工业出版社，《建筑抗震设计规范》(GBJ11-89)；
[4] 中国建筑工业出版社，《钢结构设计规范》(GBJ17-88)；
[5] 中国建筑工业出版社，《建筑结构荷载规范》(GBJ9-87)
[6] 中国建筑工业出版社，《工业厂房可靠性鉴定标准》(GBJ144-90)；
[7] 中国建筑工业出版社，《火力发电厂土建结构设计技术规定》(DL5022-93)；
[8] 中国建筑工业出版社，《电力设施抗震设计规范》(GB50260-96)；
[9] 唐九如，《钢筋混凝土框架节点抗震》，东南大学出版社，1989．
[10] 丰定国等，《工程结构抗震》，地震出版社，1989．
[11] 童岳生，《钢筋混凝土基本构件》，陕西科学技术出版社，1989．
[12] 童岳生，《钢筋混凝土建筑结构》，陕西科学技术出版社，1989．
[13] 中国建筑工业出版社，《混凝土结构设计规范》GB 50010-2002．
[14] 中国建筑工业出版社，《建筑抗震设计规范》GB 50011-2001．
[15] 李红星，钢筋混凝土框架异型节点抗震性能试验研究，西安建筑科技大学硕士论文，2002．
[16] 朱佳宁，钢筋混凝土框架异型节点抗震性能试验研究及非线性分析，西安建筑科技大学硕士论文，2002。
[2] 中国建筑工业出版社，《砼结构设计规范》(GBJ10-89)；
[3] 中国建筑工业出版社，《建筑抗震设计规范》(GBJ11-89)；
[4] 中国建筑工业出版社，《钢结构设计规范》(GBJ17-88)；
[5] 中国建筑工业出版社，《建筑结构荷载规范》(GBJ9-87)
[6] 中国建筑工业出版社，《工业厂房可靠性鉴定标准》(GBJ144-90)；
[7] 中国建筑工业出版社，《火力发电厂土建结构设计技术规定》(DL5022-93)；
[8] 中国建筑工业出版社，《电力设施抗震设计规范》(GB50260-96)；
[9] 唐九如，《钢筋混凝土框架节点抗震》，东南大学出版社，1989．
[10] 丰定国等，《工程结构抗震》，地震出版社，1989．
[11] 童岳生，《钢筋混凝土基本构件》，陕西科学技术出版社，1989．
[12] 童岳生，《钢筋混凝土建筑结构》，陕西科学技术出版社，1989．
[13] 中国建筑工业出版社，《混凝土结构设计规范》GB 50010-2002．
[14] 中国建筑工业出版社，《建筑抗震设计规范》GB 50011-2001．
[15] 李红星，钢筋混凝土框架异型节点抗震性能试验研究，西安建筑科技大学硕士论文，2002．
[16] 朱佳宁，钢筋混凝土框架异型节点抗震性能试验研究及非线性分析，西安建筑科技大学硕士论文，2002。