A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Silo failures: case histories and lessons learned
Silos and bins fail with a frequency which is much higher than almost any other industrial equipment. Sometimes the failure only involves distortion or deformation which, while unsightly, does not pose a safety or operational hazard. In other cases, failure involves complete collapse of the structure with accompanying loss of use and even loss of life. Numerous case histories involving structural failure are presented, illustrating common mistakes as well as limits of design. The best approach to the design of a silo, bin or hopper for bulk materials is one which is reasoned, thorough, conservative, and based on measured parameters. Design engineers are not legally protected by sticking to a code of practice. Compliance with the locally applicable code is, of course, necessary, but it should never, by itself, be regarded as a sufficient condition to the performance of a satisfactory design. It is the responsibility of the designer to ensure that the design is based on sound, complete knowledge of the materials being handled, that the design is competent, and that it covers all foreseeable loading combinations. It is the joint responsibility of the designer, builder and owner that construction is of an acceptable standard, and fulfills the intent of the design. It is then the responsibility of the owner to properly maintain the structural and mechanical components. It is also the responsibility of the owner to ensure that any intended alternation in usage, discharge geometry or hardware, liner material, or any other specified parameter, is preceded by a design review with strengthening applied as required.
Silo failures: case histories and lessons learned
Silos and bins fail with a frequency which is much higher than almost any other industrial equipment. Sometimes the failure only involves distortion or deformation which, while unsightly, does not pose a safety or operational hazard. In other cases, failure involves complete collapse of the structure with accompanying loss of use and even loss of life. Numerous case histories involving structural failure are presented, illustrating common mistakes as well as limits of design. The best approach to the design of a silo, bin or hopper for bulk materials is one which is reasoned, thorough, conservative, and based on measured parameters. Design engineers are not legally protected by sticking to a code of practice. Compliance with the locally applicable code is, of course, necessary, but it should never, by itself, be regarded as a sufficient condition to the performance of a satisfactory design. It is the responsibility of the designer to ensure that the design is based on sound, complete knowledge of the materials being handled, that the design is competent, and that it covers all foreseeable loading combinations. It is the joint responsibility of the designer, builder and owner that construction is of an acceptable standard, and fulfills the intent of the design. It is then the responsibility of the owner to properly maintain the structural and mechanical components. It is also the responsibility of the owner to ensure that any intended alternation in usage, discharge geometry or hardware, liner material, or any other specified parameter, is preceded by a design review with strengthening applied as required.
Silo failures: case histories and lessons learned
Carson, J.W. (author)
2000
11 Seiten, 24 Quellen
Conference paper
English
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