钢筒仓基础边界状态准则的国内外标准分析

A. Butenko, A. Mozgovuy
{"title":"钢筒仓基础边界状态准则的国内外标准分析","authors":"A. Butenko, A. Mozgovuy","doi":"10.33042/2522-1809-2023-4-178-102-112","DOIUrl":null,"url":null,"abstract":"In the process of operation the structures of steel silos undergo various failures associated with natural and climatic loads and influences, the insufficient study of engineering and geological conditions, as well as some errors during operation. Damage to the above-ground structures of steel silos is mainly caused by roof structures and silo shells failures. Whilst operating silos, various types of raw material flow are distinguished during unloading. Possible scenarios of the operating technology violations can lead to deviations from the approved flow regime during unloading and they quite often become factors of an emergency situation. The conditions of loading and operation of silos have been compared pursuant to their presentation in the domestic and the foreign regulatory documents. A significant number of industrial accidents are associated with operation failures of reinforced concrete foundations, their insufficient load-bearing capacity and their deformability. It should be noted that the construction of the foundation affects its \"flexibility\", which may cause uneven settlement of the foundations and their base. Sometimes this leads to extra-design loads on the upper structure of the silo. In the domestic practice of increased diameters silos construction, the foundations with an underground gallery are the most common. For the construction areas having a high level of groundwater, the foundations with an above-ground under-silo storey are used. For the silos with an above-ground discharge funnel, the type of outflow influences the load pattern of the foundation. Whilst operating normally, the loads are uniform, and when the storage material hangs on the walls, the loads are uneven, which can lead to the destruction of the above-ground structure or a foundation tilting. The type of funnel significantly determines the shape of the outflow, which affects the distribution of internal forces in the silo and the load on the foundation. In this work, a brief analysis of the failure factors of steel silos has been carried out, and a comparative analysis of modern domestic and international design standards has been suggested concerning the criteria for the occurrence of boundary states of steel silos foundations during designing. There has also been analyzed the special operational features taking into account specific technological loads on silo shells and foundations, the certain features of engineering and geological conditions of construction sites. Conclusions have been made that the main criteria for foundations designing and calculating are the deformation criteria for limiting settlement and tilting. It should be noted that the foreign regulations place the issue of limiting maximum settlements within the scope of a designer's competence. Keywords: reinforced concrete foundation, steel silo, failure, boundary state, design norms.","PeriodicalId":56194,"journal":{"name":"Komunal''ne Gospodarstvo Mist","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"ANALYSIS OF DOMESTIC AND WORLD STANDARDS REGARDING THE CRITERIA OF THE BOUNDARY STATES FOR THE STEEL SILOS FOUNDATIONS\",\"authors\":\"A. Butenko, A. Mozgovuy\",\"doi\":\"10.33042/2522-1809-2023-4-178-102-112\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In the process of operation the structures of steel silos undergo various failures associated with natural and climatic loads and influences, the insufficient study of engineering and geological conditions, as well as some errors during operation. Damage to the above-ground structures of steel silos is mainly caused by roof structures and silo shells failures. Whilst operating silos, various types of raw material flow are distinguished during unloading. Possible scenarios of the operating technology violations can lead to deviations from the approved flow regime during unloading and they quite often become factors of an emergency situation. The conditions of loading and operation of silos have been compared pursuant to their presentation in the domestic and the foreign regulatory documents. A significant number of industrial accidents are associated with operation failures of reinforced concrete foundations, their insufficient load-bearing capacity and their deformability. It should be noted that the construction of the foundation affects its \\\"flexibility\\\", which may cause uneven settlement of the foundations and their base. Sometimes this leads to extra-design loads on the upper structure of the silo. In the domestic practice of increased diameters silos construction, the foundations with an underground gallery are the most common. For the construction areas having a high level of groundwater, the foundations with an above-ground under-silo storey are used. For the silos with an above-ground discharge funnel, the type of outflow influences the load pattern of the foundation. Whilst operating normally, the loads are uniform, and when the storage material hangs on the walls, the loads are uneven, which can lead to the destruction of the above-ground structure or a foundation tilting. The type of funnel significantly determines the shape of the outflow, which affects the distribution of internal forces in the silo and the load on the foundation. In this work, a brief analysis of the failure factors of steel silos has been carried out, and a comparative analysis of modern domestic and international design standards has been suggested concerning the criteria for the occurrence of boundary states of steel silos foundations during designing. There has also been analyzed the special operational features taking into account specific technological loads on silo shells and foundations, the certain features of engineering and geological conditions of construction sites. Conclusions have been made that the main criteria for foundations designing and calculating are the deformation criteria for limiting settlement and tilting. It should be noted that the foreign regulations place the issue of limiting maximum settlements within the scope of a designer's competence. Keywords: reinforced concrete foundation, steel silo, failure, boundary state, design norms.\",\"PeriodicalId\":56194,\"journal\":{\"name\":\"Komunal''ne Gospodarstvo Mist\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Komunal''ne Gospodarstvo Mist\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.33042/2522-1809-2023-4-178-102-112\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Komunal''ne Gospodarstvo Mist","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33042/2522-1809-2023-4-178-102-112","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

钢筒仓结构在运行过程中,由于自然、气候荷载和影响、工程地质条件研究不足以及运行过程中的一些误差等因素,会发生各种破坏。钢筒仓地上结构破坏主要是由筒仓顶结构和筒仓壳破坏引起的。在操作筒仓时,卸料过程中区分了各种类型的原料流。操作技术违规的可能情况可能导致卸载过程中偏离批准的流量状态,并经常成为紧急情况的因素。根据国内外有关规范文件的规定,对筒仓的装载和运行条件进行了比较。大量的工业事故与钢筋混凝土基础的运行失效、承载能力不足和变形能力有关。需要注意的是,基础的施工会影响其“弹性”,这可能会导致基础及其基础的不均匀沉降。有时这会导致筒仓上部结构产生额外的设计载荷。在国内大直径筒仓施工实践中,带地下廊道的基础最为常见。对于地下水位高的建筑区域,采用地上地下筒仓层的基础。对于带有地上卸料漏斗的筒仓,出水口的类型会影响地基的荷载形式。在正常运行时,荷载是均匀的,当存储材料悬挂在墙上时,荷载是不均匀的,这可能导致地上结构的破坏或基础倾斜。漏斗的类型显著地决定了流出物的形状,从而影响筒仓内部的内力分布和基础上的荷载。本文对钢筒仓的破坏因素进行了简要分析,并对钢筒仓基础在设计过程中出现边界状态的准则提出了国内外现代设计标准的对比分析。考虑到筒仓壳体和基础上的特定工艺载荷,以及施工现场的工程和地质条件的某些特点,分析了筒仓的特殊操作特点。本文认为,限制沉降和倾斜的变形准则是基础设计和计算的主要准则。应当指出的是,国外的规定将限制最大沉降量的问题置于设计者的权限范围之内。关键词:钢筋混凝土基础,钢筒仓,破坏,边界状态,设计规范
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
ANALYSIS OF DOMESTIC AND WORLD STANDARDS REGARDING THE CRITERIA OF THE BOUNDARY STATES FOR THE STEEL SILOS FOUNDATIONS
In the process of operation the structures of steel silos undergo various failures associated with natural and climatic loads and influences, the insufficient study of engineering and geological conditions, as well as some errors during operation. Damage to the above-ground structures of steel silos is mainly caused by roof structures and silo shells failures. Whilst operating silos, various types of raw material flow are distinguished during unloading. Possible scenarios of the operating technology violations can lead to deviations from the approved flow regime during unloading and they quite often become factors of an emergency situation. The conditions of loading and operation of silos have been compared pursuant to their presentation in the domestic and the foreign regulatory documents. A significant number of industrial accidents are associated with operation failures of reinforced concrete foundations, their insufficient load-bearing capacity and their deformability. It should be noted that the construction of the foundation affects its "flexibility", which may cause uneven settlement of the foundations and their base. Sometimes this leads to extra-design loads on the upper structure of the silo. In the domestic practice of increased diameters silos construction, the foundations with an underground gallery are the most common. For the construction areas having a high level of groundwater, the foundations with an above-ground under-silo storey are used. For the silos with an above-ground discharge funnel, the type of outflow influences the load pattern of the foundation. Whilst operating normally, the loads are uniform, and when the storage material hangs on the walls, the loads are uneven, which can lead to the destruction of the above-ground structure or a foundation tilting. The type of funnel significantly determines the shape of the outflow, which affects the distribution of internal forces in the silo and the load on the foundation. In this work, a brief analysis of the failure factors of steel silos has been carried out, and a comparative analysis of modern domestic and international design standards has been suggested concerning the criteria for the occurrence of boundary states of steel silos foundations during designing. There has also been analyzed the special operational features taking into account specific technological loads on silo shells and foundations, the certain features of engineering and geological conditions of construction sites. Conclusions have been made that the main criteria for foundations designing and calculating are the deformation criteria for limiting settlement and tilting. It should be noted that the foreign regulations place the issue of limiting maximum settlements within the scope of a designer's competence. Keywords: reinforced concrete foundation, steel silo, failure, boundary state, design norms.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
129
审稿时长
4 weeks
期刊最新文献
THE IMPACT OF LOW-CARBON DEVELOPMENT ON MUNICIPAL UTILITIES (SYSTEMIC APPROACH) HISTORY OF FORMATION AND DEVELOPMENT THE UKRAINIAN SCIENCE CITY OF PYATKHATKI. THE ARCHITECTURAL, PLANNING AND FUNCTIONAL SPECIFICS AN ADAPTIVE DECISION-MAKING SUPPORT MODEL IN THE MANAGEMETN OF ENGINEERING INFRASTRUCTURE RECONSTRUCTION PROGRAMS AND PROJECTS ANALYSIS OF DOMESTIC AND WORLD STANDARDS REGARDING THE CRITERIA OF THE BOUNDARY STATES FOR THE STEEL SILOS FOUNDATIONS PROBLEMS OF THE PROCESS OF LIQUIDATION OF EXTRAORDINARY SITUATIONS AT THE REGIONAL LEVEL UNDER THE CONDITIONS OF MILITARY INFLUENCE ON THE SYSTEM OF TRAINING SPECIALISTS IN THE OPERATION OF EMERGENCY AND RESCUE EQUIPMENT
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1