Article(id=1175385806282834621, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1175385799072821512, articleNumber=1671-1807(2025)15-0088-07, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1737043200000, receivedDateStr=2025-01-17, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1758163413829, onlineDateStr=2025-09-18, pubDate=1754755200000, pubDateStr=2025-08-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1758163413829, onlineIssueDateStr=2025-09-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1758163413829, creator=13701087609, updateTime=1758163413829, updator=13701087609, issue=Issue{id=1175385799072821512, tenantId=1146029695717560320, journalId=1146123222451335185, year='2025', volume='25', issue='15', pageStart='1', pageEnd='331', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=0, createTime=1758163412111, creator=13701087609, updateTime=1758163801470, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1175387432229941342, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1175385799072821512, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1175387432229941343, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1175385799072821512, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=88, endPage=94, ext={EN=ArticleExt(id=1175385807146861275, articleId=1175385806282834621, tenantId=1146029695717560320, journalId=1146123222451335185, language=EN, title=Deformation Analysis of Transmission Line Landscape Tower Based on Virtual Work Principle, columnId=1151876674645226399, journalTitle=Science Technology and Industry, columnName=Technology Innovation, runingTitle=null, highlight=null, articleAbstract=
For the convenience of installation, the bolt hole diameter in the transmission tower is generally required to be 1.5 mm larger than the diameter of the bolt, and there is sliding phenomenon after the bolt is subjected to force. The current tower design software generally uses a spatial truss model for analysis, without considering the influence of bolt slip, which cannot accurately reflect the actual deformation of transmission towers. As a result, the calculated deformation values are generally much lower than the measured values, which affects the accuracy and safety of structural internal force analysis. At present, the analysis of the impact of bolt slip on deformation is mainly carried out through finite element software combined with spring elements. Due to the large number of transmission tower members and complex structure, this processing method has low efficiency and is generally only used for verification analysis of tests. Based on the principle of virtual work, considering bolt slip and residual deformation, the calculation formula for tower deformation is improved, and fast identification methods for various joint models are proposed. At the same time, a full-scale real type experimental study was conducted for the deformation of the yak shaped landscape tower for the first time, and the experimental results, theoretical calculation values, and improved formula calculation values were compared and analyzed to verify the effectiveness of the improved formula. In addition, the measures to reduce bolt slip deformation are proposed. The research results have certain reference value for the optimization design of transmission tower, deformation control, and evaluation of bearing capacity under foundation deformation conditions such as landslides and settlements.
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为方便安装,输电铁塔螺孔直径一般要求比螺杆直径大1.5 mm,螺栓受力后存在滑移现象。现行的铁塔设计软件一般采用空间桁架模型进行分析,未考虑螺栓滑移影响,不能准确反映输电铁塔实际变形情况,导致变形计算值一般远低于实测值,进而影响到结构内力分析的准确性和安全性。目前关于螺栓滑移对变形的影响主要是通过有限元软件结合弹簧等单元进行分析,由于输电铁塔杆件较多,结构复杂,这种处理方式效率较低,一般仅用于真型试验的验证分析。考虑螺栓滑移和残余变形影响,基于虚功原理对铁塔变形计算公式进行改进和优化,总结影响螺栓滑移变形大小的关键因素,提出各类节点模型快速识别方法。同时首次对牦牛造型景观塔变形开展足尺真型试验研究,并对试验结果、理论计算值和改进公式计算值进行多工况对比分析,验证改进公式的有效性。此外,根据分析结果和影响因素,提出减少螺栓滑移变形的措施。研究成果对铁塔结构优化设计、变形控制和滑坡、沉降等地基变形情况下的承载力评估具有一定的参考价值。
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廖邢军(1987—),男,四川宣汉人,硕士,高级工程师,研究方向为输电线路勘察设计与施工;
何松洋(1995—),男,贵州铜仁人,硕士,工程师,研究方向为输电线路结构计算理论和设计技术;
何文俊(1986—),男,四川广元人,工程师,研究方向为输电铁塔和基础设计;
刘洪昌(1987—),男,山东新泰人,高级工程师,研究方向为输电线路设计和管理。
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廖邢军(1987—),男,四川宣汉人,硕士,高级工程师,研究方向为输电线路勘察设计与施工;
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廖邢军(1987—),男,四川宣汉人,硕士,高级工程师,研究方向为输电线路勘察设计与施工;
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何松洋(1995—),男,贵州铜仁人,硕士,工程师,研究方向为输电线路结构计算理论和设计技术;
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何松洋(1995—),男,贵州铜仁人,硕士,工程师,研究方向为输电线路结构计算理论和设计技术;
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何文俊(1986—),男,四川广元人,工程师,研究方向为输电铁塔和基础设计;
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何文俊(1986—),男,四川广元人,工程师,研究方向为输电铁塔和基础设计;
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刘洪昌(1987—),男,山东新泰人,高级工程师,研究方向为输电线路设计和管理。
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刘洪昌(1987—),男,山东新泰人,高级工程师,研究方向为输电线路设计和管理。
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考虑残余变形修正后的位移对比, figureFileSmall=UaQyXgMmyn6rpX0fYdbUBw==, figureFileBig=dE8i0qRIzPRMusGZuOCfiw==, tableContent=null), ArticleFig(id=1176928492382991198, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=EN, label=null, caption=null, figureFileSmall=GfnW9udub7fyf8vKKweajQ==, figureFileBig=c6YXJWjlPnG1htJU1CQTLQ==, tableContent=null), ArticleFig(id=1176928492458488671, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=CN, label=图4, caption=
交叉材与主材连接优化, figureFileSmall=GfnW9udub7fyf8vKKweajQ==, figureFileBig=c6YXJWjlPnG1htJU1CQTLQ==, tableContent=null), ArticleFig(id=1176928492521403232, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=EN, label=null, caption=null, figureFileSmall=ySpENHke1Dt8pIz/yv+2uQ==, figureFileBig=m3eZOjLM1dIGU+ywzB+SiQ==, tableContent=null), ArticleFig(id=1176928492613677921, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=CN, label=图5, caption=
地线支架下端连接优化, figureFileSmall=ySpENHke1Dt8pIz/yv+2uQ==, figureFileBig=m3eZOjLM1dIGU+ywzB+SiQ==, tableContent=null), ArticleFig(id=1176928492676592482, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载顺序 | 工况说明 | 控制构件 |
| 1 | 断左导线 | 边横担主材、交叉材 |
| 2 | 断左地线 | 地线支架主斜材和边相横担交叉材 |
| 3 | 左地线正锚 | 地线支架交叉材 |
| 4 | 2倍吊装 | 横担少量构件 |
| 5 | 90°风,正常覆冰 | 头部少量杆件 |
| 6 | 90°大风 | 塔头主材和正面交叉材 |
| 7 | 90°风,不均匀扭 | 身部交叉材 |
| 8 | 60°大风 | 身部主材 |
), ArticleFig(id=1176928492768867171, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=CN, label=表1, caption=
试验工况及控制构件
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| 加载顺序 | 工况说明 | 控制构件 |
| 1 | 断左导线 | 边横担主材、交叉材 |
| 2 | 断左地线 | 地线支架主斜材和边相横担交叉材 |
| 3 | 左地线正锚 | 地线支架交叉材 |
| 4 | 2倍吊装 | 横担少量构件 |
| 5 | 90°风,正常覆冰 | 头部少量杆件 |
| 6 | 90°大风 | 塔头主材和正面交叉材 |
| 7 | 90°风,不均匀扭 | 身部交叉材 |
| 8 | 60°大风 | 身部主材 |
), ArticleFig(id=1176928492865336164, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 构件类别 | 连接点数 | 说明 |
| 1 | 仅一端有接头主材 | 1 | 当中间增加接头时,每增加一处接头,连接点数加2 |
| 2 | 两端均有接头主材 | 2 |
| 3 | 无接头主材 | 0 |
| 4 | 直接搭在主材上的 斜材、交叉材 | 2 |
| 5 | 两端通过节点板连接 斜材、交叉材 | 4 |
| 6 | 一端通过节点板连接的 斜材、交叉材 | 3 |
| 7 | 辅助材 | 0 |
| 8 | 塔脚板 | 2 |
), ArticleFig(id=1176928492936639333, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=CN, label=表2, caption=
构件类别与连接点数
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| 序号 | 构件类别 | 连接点数 | 说明 |
| 1 | 仅一端有接头主材 | 1 | 当中间增加接头时,每增加一处接头,连接点数加2 |
| 2 | 两端均有接头主材 | 2 |
| 3 | 无接头主材 | 0 |
| 4 | 直接搭在主材上的 斜材、交叉材 | 2 |
| 5 | 两端通过节点板连接 斜材、交叉材 | 4 |
| 6 | 一端通过节点板连接的 斜材、交叉材 | 3 |
| 7 | 辅助材 | 0 |
| 8 | 塔脚板 | 2 |
), ArticleFig(id=1176928493007942502, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 测点 | 残余变形/mm |
| 工况2 | 工况7 |
| x向 | y向 | z向 | x向 | y向 | z向 |
| 1 | 148 | -150 | -64 | 801 | 282 | -252 |
| 2 | -62 | 455 | -30 | 660 | 148 | 222 |
| 3 | -7 | -165 | -92 | 411 | 108 | -343 |
| 4 | 32 | 315 | -56 | 437 | -211 | 258 |
| 5 | 22 | 38 | 11 | 445 | 21 | 45 |
| 6 | 11 | -41 | -3 | 361 | 67 | -26 |
| 7 | 30 | 116 | 1 | 385 | -20 | 93 |
| 8 | 5 | -49 | -9 | 131 | 54 | -42 |
| 9 | 20 | 71 | -7 | 164 | -35 | 92 |
| 10 | 4 | 8 | -20 | 40 | 5 | 2 |
| 11 | 9 | -4 | 0 | 6 | 5 | 12 |
), ArticleFig(id=1176928493087634279, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1175385806282834621, language=CN, label=表3, caption=
工况2、工况7加载前的残余变形
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| 测点 | 残余变形/mm |
| 工况2 | 工况7 |
| x向 | y向 | z向 | x向 | y向 | z向 |
| 1 | 148 | -150 | -64 | 801 | 282 | -252 |
| 2 | -62 | 455 | -30 | 660 | 148 | 222 |
| 3 | -7 | -165 | -92 | 411 | 108 | -343 |
| 4 | 32 | 315 | -56 | 437 | -211 | 258 |
| 5 | 22 | 38 | 11 | 445 | 21 | 45 |
| 6 | 11 | -41 | -3 | 361 | 67 | -26 |
| 7 | 30 | 116 | 1 | 385 | -20 | 93 |
| 8 | 5 | -49 | -9 | 131 | 54 | -42 |
| 9 | 20 | 71 | -7 | 164 | -35 | 92 |
| 10 | 4 | 8 | -20 | 40 | 5 | 2 |
| 11 | 9 | -4 | 0 | 6 | 5 | 12 |
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