Article(id=1281326821291569410, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281326672238580175, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2026.01.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1744387200000, receivedDateStr=2025-04-12, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1783421720096, onlineDateStr=2026-07-07, pubDate=1768406400000, pubDateStr=2026-01-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783421720096, onlineIssueDateStr=2026-07-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783421720096, creator=13701087609, updateTime=1783421720096, updator=13701087609, issue=Issue{id=1281326672238580175, tenantId=1146029695717560320, journalId=1240685776644648972, year='2026', volume='30', issue='1', pageStart='1', pageEnd='176', issueExtLink='null', onlineDate='null', pubDate='1768406400000', pubDateStr='2026-01-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783421684559, creator='13701087609', updateTime=1783422118948, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1281328494261026863, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281326672238580175, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1281328494261026864, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281326672238580175, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=119, endPage=134, ext={EN=ArticleExt(id=1281326821513867523, articleId=1281326821291569410, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Theoretical study of influence of mass on displacement response of beam members under uniform blast loading, columnId=1242129251223274417, journalTitle=Journal of Ship Mechanics, columnName=Structural Mechanics, runingTitle=null, highlight=null, articleAbstract=
In order to study the influence of mass increase and the corresponding added damping and stiffness on the displacement response of beam members under a uniform blast loading, the elastic-plastic displacement solutions of beam members with mass parameters as variables were derived, using the ductility ratio to control the extent of plastic deformation. Using a rectangular section as representative case for beam members, we designed 17 calculation cases for the parameters of mass, additional damping, and additional stiffness. The effect of these parameters on the vibration displacement of beam members under uniform blast loading was analyzed, particularly the impact on peak elastic and the peak elastic-plastic displacement. The comparison of LS-DYNA numerical simulation verification and theoretical results of the displacement response of the rectangular section steel beam under blast loading was completed, which verified the reliability of the theoretical method proposed in this paper. The results show that the reduction of various peak displacements can be achieved by adding mass and the degree of reduction is lower than that of adding mass. The single effect of additional damping in the mass-damping-stiffness coupling calculation may increase the peak displacement reduction by more than 3 times of that obtained from the mass-damping coupling alone. The additional stiffness effect, when included in the mass-damping-stiffness coupling, reduces peak elastic displacements to similar degree as mass-stiffness coupling alone. The coupling calculation method of mass, additional damping, and additional stiffness should be uesd for the blast-resistant beam design.
, authors=Shao-bo GENG, Xin HONG, Yi ZHENG, Xin-yue SHEN, authorsList=Shao-bo GENG, Xin HONG, Yi ZHENG, Xin-yue SHEN, authorCompany=null, correspAuthors=Shao-bo GENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Journal of Ship Mechanics. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1281326835111801197, articleId=1281326821291569410, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=质量对爆炸荷载均布作用梁构件位移响应影响的理论研究, columnId=1241023038926410098, journalTitle=船舶力学, columnName=结构力学, runingTitle=null, highlight=null, articleAbstract=
为研究质量增加及产生的附加阻尼、附加刚度效应对均布爆炸荷载作用下梁构件位移响应的影响,本文以延性比为塑性发展程度控制参数,推导了以质量参数为变量的梁构件弹塑性位移解。以矩形截面为梁构件代表性截面,设计了不同质量参数及其附加阻尼和附加刚度参数耦合的17种典型工况,考察了这些参数对均布爆炸荷载作用梁构件振动位移的影响,重点分析了各参数对弹性位移峰值和弹塑性位移峰值的影响程度,完成了矩形截面钢梁爆炸荷载下位移响应的LS–DYNA数值仿真验证与理论对比,验证了本文理论方法的可靠性。结果表明:提高构件质量可降低位移峰值,其降低程度低于质量自身增加幅度;附加阻尼效应在质量–阻尼–刚度耦合计算中的独立作用,可使位移峰值降低幅度提升至质量–阻尼耦合结果的3倍以上;附加刚度效应按质量–阻尼–刚度耦合计算后独立考察,其对弹性位移峰值的降低幅度基本等同于按质量–刚度耦合计算后独立考察结果,对于梁构件抗爆设计,应采用质量、附加阻尼与附加刚度的三者耦合计算方法。
, authors=耿少波, 洪欣, 郑毅, 沈新月, authorsList=耿少波, 洪欣, 郑毅, 沈新月, authorCompany=null, correspAuthors=耿少波, authorNote=null, correspAuthorsNote=
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tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, orderNo=5, keyword=阻尼), Keyword(id=1281326840673448336, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, orderNo=6, keyword=刚度)], refs=[Reference(id=1281326844993581491, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=0, authorNames=null, journalName=null, refType=null, unstructuredReference=舰船通用规范总册: GJB4000-2000[S]. 北京: 中国人民解放军总装备部, 2000., articleTitle=null, refAbstract=null), Reference(id=1281326845060690356, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, 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(in Chinese), articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1281326838744068462, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, xref=null, ext=[AuthorCompanyExt(id=1281326838752457071, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, companyId=1281326838744068462, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China), AuthorCompanyExt(id=1281326838760845680, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, companyId=1281326838744068462, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中北大学 环境与安全工程学院,太原 030051)])], figs=[ArticleFig(id=1281326840820248977, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.1, caption=
Elastoplastic displacement-time curves of beam members for Cases C1~C5, figureFileSmall=Gfp0vzHYI96YFc+4XDWh4g==, figureFileBig=SlPNH6YtILDZe7eFeZ5YAQ==, tableContent=null), ArticleFig(id=1281326840912523666, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图1, caption=
工况C1~C5梁构件弹塑性位移时程曲线, figureFileSmall=Gfp0vzHYI96YFc+4XDWh4g==, figureFileBig=SlPNH6YtILDZe7eFeZ5YAQ==, tableContent=null), ArticleFig(id=1281326842640576915, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.2, caption=
Elastoplastic displacement-time curves of beam members for Cases C6~C9, figureFileSmall=Ip2lt1YzSwjjmpXoK03GGA==, figureFileBig=9axsYfL60M7fZCUPk/vHDQ==, tableContent=null), ArticleFig(id=1281326842749628820, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图2, caption=
工况C6~C9梁构件弹塑性位移时程曲线, figureFileSmall=Ip2lt1YzSwjjmpXoK03GGA==, figureFileBig=9axsYfL60M7fZCUPk/vHDQ==, tableContent=null), ArticleFig(id=1281326842829320597, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.3, caption=
Elastoplastic displacement-time curves of beam members for Cases C10~C13, figureFileSmall=VGWRh6b5EjGcirVSD/1ZXQ==, figureFileBig=Z2MwL4iw5AaNswmO6nuJOw==, tableContent=null), ArticleFig(id=1281326842896429462, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图3, caption=
工况C10~C13梁构件弹塑性位移时程曲线, figureFileSmall=VGWRh6b5EjGcirVSD/1ZXQ==, figureFileBig=Z2MwL4iw5AaNswmO6nuJOw==, tableContent=null), ArticleFig(id=1281326842963538327, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.4, caption=
Elastoplastic displacement-time curves of beam members for Cases C14~C17, figureFileSmall=5Om+a1AHn+A0wgSG/rVx2A==, figureFileBig=upc+rAAx1QynTfKeWmmaLQ==, tableContent=null), ArticleFig(id=1281326843047424408, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图4, caption=
工况C14~C17梁构件弹塑性位移时程曲线, figureFileSmall=5Om+a1AHn+A0wgSG/rVx2A==, figureFileBig=upc+rAAx1QynTfKeWmmaLQ==, tableContent=null), ArticleFig(id=1281326843118727577, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.5, caption=
Peak displacement reduction caused by additional damping effect using first method, figureFileSmall=7dzr9E7vcAzoSzAiWX7fvQ==, figureFileBig=SjUZRR+sx67Ow10NUFsmLQ==, tableContent=null), ArticleFig(id=1281326843198419354, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图5, caption=
第一种方法附加阻尼效应对位移峰值降低率曲线, figureFileSmall=7dzr9E7vcAzoSzAiWX7fvQ==, figureFileBig=SjUZRR+sx67Ow10NUFsmLQ==, tableContent=null), ArticleFig(id=1281326843265528219, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.6, caption=
Peak displacement reduction caused by additional damping effect using second method, figureFileSmall=+jGEJgqOhdHEZKAZG/YYkw==, figureFileBig=4U2O+KD7Sz1GIJ1Ygj7Qdw==, tableContent=null), ArticleFig(id=1281326843328442780, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图6, caption=
第二种方法附加阻尼效应对位移峰值降低率, figureFileSmall=+jGEJgqOhdHEZKAZG/YYkw==, figureFileBig=4U2O+KD7Sz1GIJ1Ygj7Qdw==, tableContent=null), ArticleFig(id=1281326843408134557, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.7, caption=
Peak displacement reduction caused by additional stiffness using the first method, figureFileSmall=C//BSEW4f1QPrp5ImSH2OA==, figureFileBig=RS3DrCZk+xfBLR56pdMMKw==, tableContent=null), ArticleFig(id=1281326843512992158, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图7, caption=
第一种附加刚度效应对位移峰值降低率曲线, figureFileSmall=C//BSEW4f1QPrp5ImSH2OA==, figureFileBig=RS3DrCZk+xfBLR56pdMMKw==, tableContent=null), ArticleFig(id=1281326843575906719, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.8, caption=
Peak displacement reduction caused by additional stiffness using the second method, figureFileSmall=i/uoKYb7UUv3xS30lznx+w==, figureFileBig=p1I9MIYEY26bx3WcPt3OTA==, tableContent=null), ArticleFig(id=1281326843647209888, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图8, caption=
第二种附加刚度效应对位移峰值降低率曲线, figureFileSmall=i/uoKYb7UUv3xS30lznx+w==, figureFileBig=p1I9MIYEY26bx3WcPt3OTA==, tableContent=null), ArticleFig(id=1281326843705930145, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.9, caption=
Peak displacement reduction under the coupling of additional damping and additional stiffness, figureFileSmall=40VLwJTYafdH/ZlmGMXjug==, figureFileBig=K3AlaYe7dUxKG9eZI7ZKpw==, tableContent=null), ArticleFig(id=1281326843773039010, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图9, caption=
附加阻尼及附加刚度耦合作用下的位移峰值降低率, figureFileSmall=40VLwJTYafdH/ZlmGMXjug==, figureFileBig=K3AlaYe7dUxKG9eZI7ZKpw==, tableContent=null), ArticleFig(id=1281326843835953571, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Fig.10, caption=
Comparison of displacement-time curves for mid-span point between finite element simulation and theoretical calculation, figureFileSmall=stW7kR561J5lKuzzIt9vuQ==, figureFileBig=O29g8ZWwjtCCs1eERkEXJw==, tableContent=null), ArticleFig(id=1281326843898868132, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=图10, caption=
有限元模拟与理论计算钢梁跨中位移时程曲线对比, figureFileSmall=stW7kR561J5lKuzzIt9vuQ==, figureFileBig=O29g8ZWwjtCCs1eERkEXJw==, tableContent=null), ArticleFig(id=1281326843986948517, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.1, caption=
Parameters of typical calculation cases
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | αm | αk | αc | | 工况 | αm | αk | αc | | 工况 | αm | αk | αc |
|---|
| C1 | 1.00 | 1.00 | 1.00 | | C7 | 1.10 | 1.00 | 1.05 | | C13 | 1.20 | 1.73 | 1.00 |
| C2 | 1.05 | 1.00 | 1.00 | | C8 | 1.15 | 1.00 | 1.07 | | C14 | 1.05 | 1.16 | 1.10 |
| C3 | 1.10 | 1.00 | 1.00 | | C9 | 1.20 | 1.00 | 1.10 | | C15 | 1.10 | 1.33 | 1.21 |
| C4 | 1.15 | 1.00 | 1.00 | | C10 | 1.05 | 1.16 | 1.00 | | C16 | 1.15 | 1.52 | 1.32 |
| C5 | 1.20 | 1.00 | 1.00 | | C11 | 1.10 | 1.33 | 1.00 | | C17 | 1.20 | 1.73 | 1.44 |
| C6 | 1.05 | 1.00 | 1.02 | | C12 | 1.15 | 1.52 | 1.00 | | | | | |
), ArticleFig(id=1281326844066640294, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表1, caption=
典型工况计算参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | αm | αk | αc | | 工况 | αm | αk | αc | | 工况 | αm | αk | αc |
|---|
| C1 | 1.00 | 1.00 | 1.00 | | C7 | 1.10 | 1.00 | 1.05 | | C13 | 1.20 | 1.73 | 1.00 |
| C2 | 1.05 | 1.00 | 1.00 | | C8 | 1.15 | 1.00 | 1.07 | | C14 | 1.05 | 1.16 | 1.10 |
| C3 | 1.10 | 1.00 | 1.00 | | C9 | 1.20 | 1.00 | 1.10 | | C15 | 1.10 | 1.33 | 1.21 |
| C4 | 1.15 | 1.00 | 1.00 | | C10 | 1.05 | 1.16 | 1.00 | | C16 | 1.15 | 1.52 | 1.32 |
| C5 | 1.20 | 1.00 | 1.00 | | C11 | 1.10 | 1.33 | 1.00 | | C17 | 1.20 | 1.73 | 1.44 |
| C6 | 1.05 | 1.00 | 1.02 | | C12 | 1.15 | 1.52 | 1.00 | | | | | |
), ArticleFig(id=1281326844142137767, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.2, caption=
Difference of peak displacements between Case C1 and C2, C3, C4, C5 respectively and the difference between the two types of beam (%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 相对工况 | 柔性梁构件(1) | 刚性梁构件(2) | (1)−(2) |
|---|
| β=2 | β=5 | β=2 | β=5 | δ2T | δ2m | δ5T | δ5m |
|---|
| δT | δm | δT | δm | δT | δm | δT | δm |
|---|
| S1(C2相对于C1) | 2.03 | 2.05 | 1.80 | 2.00 | 0.94 | 2.33 | 0.53 | 2.57 | 1.09 | −0.28 | 1.27 | −0.57 |
| S2(C3相对于C1) | 3.94 | 3.98 | 3.51 | 3.87 | 1.87 | 4.49 | 1.04 | 4.98 | 2.07 | −0.51 | 2.47 | −1.11 |
| S3(C4相对于C1) | 5.74 | 5.79 | 5.12 | 5.64 | 2.78 | 6.52 | 1.55 | 7.23 | 2.96 | −0.73 | 3.57 | −1.59 |
| S4(C5相对于C1) | 7.43 | 7.49 | 6.66 | 7.30 | 3.68 | 8.42 | 2.06 | 9.35 | 3.75 | −0.93 | 4.60 | −2.05 |
), ArticleFig(id=1281326844217635240, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表2, caption=
工况C2~C5相对于C1的位移峰值降低率及两类梁构件差异性结果(%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 相对工况 | 柔性梁构件(1) | 刚性梁构件(2) | (1)−(2) |
|---|
| β=2 | β=5 | β=2 | β=5 | δ2T | δ2m | δ5T | δ5m |
|---|
| δT | δm | δT | δm | δT | δm | δT | δm |
|---|
| S1(C2相对于C1) | 2.03 | 2.05 | 1.80 | 2.00 | 0.94 | 2.33 | 0.53 | 2.57 | 1.09 | −0.28 | 1.27 | −0.57 |
| S2(C3相对于C1) | 3.94 | 3.98 | 3.51 | 3.87 | 1.87 | 4.49 | 1.04 | 4.98 | 2.07 | −0.51 | 2.47 | −1.11 |
| S3(C4相对于C1) | 5.74 | 5.79 | 5.12 | 5.64 | 2.78 | 6.52 | 1.55 | 7.23 | 2.96 | −0.73 | 3.57 | −1.59 |
| S4(C5相对于C1) | 7.43 | 7.49 | 6.66 | 7.30 | 3.68 | 8.42 | 2.06 | 9.35 | 3.75 | −0.93 | 4.60 | −2.05 |
), ArticleFig(id=1281326844288938409, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.3, caption=
Results comparison of two methods for additional damping effect
, figureFileSmall=null, figureFileBig=null, tableContent=
| 两种相对工况结果对比 | 柔性梁构件 | | 刚性梁构件 |
|---|
| β=2 | | β=5 | β=2 | | β=5 |
|---|
| δδT/δT | δδm/δm | | δδT/δT | δδm/δm | δδT/δT | δδm/δm | | δδT/δT | δδm/δm |
|---|
| S9/S5 | 3.54 | 3.70 | | 3.43 | 3.75 | | 3.47 | 3.80 | | 3.30 | 3.90 |
| S10/S6 | 3.16 | 3.39 | | 3.15 | 3.52 | | 2.97 | 3.56 | | 2.89 | 3.80 |
| S11/S7 | 2.78 | 3.12 | | 2.74 | 3.32 | | 2.51 | 3.40 | | 2.46 | 3.73 |
| S12/S8 | 2.55 | 2.90 | | 2.40 | 3.14 | | 2.22 | 3.22 | | 2.14 | 3.65 |
), ArticleFig(id=1281326844360241578, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表3, caption=
两种方法的附加阻尼参数结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 两种相对工况结果对比 | 柔性梁构件 | | 刚性梁构件 |
|---|
| β=2 | | β=5 | β=2 | | β=5 |
|---|
| δδT/δT | δδm/δm | | δδT/δT | δδm/δm | δδT/δT | δδm/δm | | δδT/δT | δδm/δm |
|---|
| S9/S5 | 3.54 | 3.70 | | 3.43 | 3.75 | | 3.47 | 3.80 | | 3.30 | 3.90 |
| S10/S6 | 3.16 | 3.39 | | 3.15 | 3.52 | | 2.97 | 3.56 | | 2.89 | 3.80 |
| S11/S7 | 2.78 | 3.12 | | 2.74 | 3.32 | | 2.51 | 3.40 | | 2.46 | 3.73 |
| S12/S8 | 2.55 | 2.90 | | 2.40 | 3.14 | | 2.22 | 3.22 | | 2.14 | 3.65 |
), ArticleFig(id=1281326844435739051, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.4, caption=
Results comparison of two methods for additional stiffness effect
, figureFileSmall=null, figureFileBig=null, tableContent=
| 两种相对工 况结果对比 | 柔性梁构件 | | 刚性梁构件 |
|---|
| β=2 | | β=5 | β=2 | | β=5 |
|---|
| δδT/δT | δδm/δm | | δδT/δT | δδm/δm | δδT/δT | δδm/δm | | δδT/δT | δδm/δm |
|---|
| S17/S13 | 1.04 | 1.23 | | 1.02 | 1.48 | | 1.03 | 1.27 | | 1.02 | 1.81 |
| S18/S14 | 1.04 | 1.20 | | 1.02 | 1.44 | | 1.03 | 1.25 | | 1.02 | 1.77 |
| S19/S15 | 1.03 | 1.18 | | 1.01 | 1.40 | | 1.02 | 1.23 | | 1.01 | 1.74 |
| S20/S16 | 1.03 | 1.16 | | 1.01 | 1.37 | | 1.02 | 1.22 | | 1.01 | 1.72 |
), ArticleFig(id=1281326844511236524, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表4, caption=
附加刚度参数效应两种方法结果的比值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 两种相对工 况结果对比 | 柔性梁构件 | | 刚性梁构件 |
|---|
| β=2 | | β=5 | β=2 | | β=5 |
|---|
| δδT/δT | δδm/δm | | δδT/δT | δδm/δm | δδT/δT | δδm/δm | | δδT/δT | δδm/δm |
|---|
| S17/S13 | 1.04 | 1.23 | | 1.02 | 1.48 | | 1.03 | 1.27 | | 1.02 | 1.81 |
| S18/S14 | 1.04 | 1.20 | | 1.02 | 1.44 | | 1.03 | 1.25 | | 1.02 | 1.77 |
| S19/S15 | 1.03 | 1.18 | | 1.01 | 1.40 | | 1.02 | 1.23 | | 1.01 | 1.74 |
| S20/S16 | 1.03 | 1.16 | | 1.01 | 1.37 | | 1.02 | 1.22 | | 1.01 | 1.72 |
), ArticleFig(id=1281326844569956781, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.5, caption=
Comparison of additional stiffness-damping coupling effect and additional stiffness effect
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结果比值对应的 两种相对工况 | 柔性梁构件 | | 刚性梁构件 |
|---|
| β=2 | | β=5 | β=2 | | β=5 |
|---|
| δδT/δT | δδm/δm | | δδT/δT | δδm/δm | δδT/δT | δδm/δm | | δδT/δT | δδm/δm |
|---|
| S21/S17 | 1.02 | 1.07 | | 1.01 | 1.12 | | 1.01 | 1.08 | | 1.01 | 1.15 |
| S22/S18 | 1.02 | 1.07 | | 1.01 | 1.12 | | 1.01 | 1.08 | | 1.01 | 1.16 |
| S23/S19 | 1.02 | 1.07 | | 1.01 | 1.12 | | 1.01 | 1.08 | | 1.01 | 1.16 |
| S24/S20 | 1.02 | 1.07 | | 1.01 | 1.13 | | 1.02 | 1.08 | | 1.01 | 1.16 |
), ArticleFig(id=1281326844632871342, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表5, caption=
附加刚度–阻尼耦合效应与附加刚度效应比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结果比值对应的 两种相对工况 | 柔性梁构件 | | 刚性梁构件 |
|---|
| β=2 | | β=5 | β=2 | | β=5 |
|---|
| δδT/δT | δδm/δm | | δδT/δT | δδm/δm | δδT/δT | δδm/δm | | δδT/δT | δδm/δm |
|---|
| S21/S17 | 1.02 | 1.07 | | 1.01 | 1.12 | | 1.01 | 1.08 | | 1.01 | 1.15 |
| S22/S18 | 1.02 | 1.07 | | 1.01 | 1.12 | | 1.01 | 1.08 | | 1.01 | 1.16 |
| S23/S19 | 1.02 | 1.07 | | 1.01 | 1.12 | | 1.01 | 1.08 | | 1.01 | 1.16 |
| S24/S20 | 1.02 | 1.07 | | 1.01 | 1.13 | | 1.02 | 1.08 | | 1.01 | 1.16 |
), ArticleFig(id=1281326844695785903, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.6, caption=
Calculation parameters of steel beams
, figureFileSmall=null, figureFileBig=null, tableContent=
| 构件 类型 | 工况 | 截面尺寸(b×h)/ (mm×mm) | 截面面积 A/(mm2) | 刚度 K/(kN·m−1) | 频率 ω/ ms−1 | 静位移 yst/ mm | 超压峰值 Δpm/ MPa | 爆炸持时 ti/ ms |
|---|
| 注:b为截面宽度;h为截面高度。 |
| 柔性 | T1 | 30×45 | 1350 | 10508 | 658 | 139.89 | 0.21 | 1.22 |
| T2 | 30×47.25 | 1417.5 | 12164 | 684 | 120.85 | 0.21 | 1.17 |
| T3 | 30×49.5 | 1485 | 13986 | 710 | 108.36 | 0.21 | 1.13 |
| T4 | 30×51.75 | 1552.5 | 15981 | 742 | 90.66 | 0.21 | 1.08 |
| T5 | 30×54 | 1620 | 18157 | 774 | 80.96 | 0.21 | 1.03 |
| 刚性 | T6 | 40×60 | 2400 | 33210 | 745 | 86.84 | 0.412 | 1.74 |
| T7 | 40×63 | 2520 | 38445 | 790 | 75.02 | 0.412 | 1.65 |
| T8 | 40×66 | 2640 | 44202 | 827 | 65.25 | 0.412 | 1.57 |
| T9 | 40×69 | 2760 | 50508 | 856 | 57.10 | 0.412 | 1.52 |
| T10 | 40×72 | 2880 | 57387 | 888 | 50.26 | 0.412 | 1.46 |
), ArticleFig(id=1281326844754506160, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表6, caption=
钢梁模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 构件 类型 | 工况 | 截面尺寸(b×h)/ (mm×mm) | 截面面积 A/(mm2) | 刚度 K/(kN·m−1) | 频率 ω/ ms−1 | 静位移 yst/ mm | 超压峰值 Δpm/ MPa | 爆炸持时 ti/ ms |
|---|
| 注:b为截面宽度;h为截面高度。 |
| 柔性 | T1 | 30×45 | 1350 | 10508 | 658 | 139.89 | 0.21 | 1.22 |
| T2 | 30×47.25 | 1417.5 | 12164 | 684 | 120.85 | 0.21 | 1.17 |
| T3 | 30×49.5 | 1485 | 13986 | 710 | 108.36 | 0.21 | 1.13 |
| T4 | 30×51.75 | 1552.5 | 15981 | 742 | 90.66 | 0.21 | 1.08 |
| T5 | 30×54 | 1620 | 18157 | 774 | 80.96 | 0.21 | 1.03 |
| 刚性 | T6 | 40×60 | 2400 | 33210 | 745 | 86.84 | 0.412 | 1.74 |
| T7 | 40×63 | 2520 | 38445 | 790 | 75.02 | 0.412 | 1.65 |
| T8 | 40×66 | 2640 | 44202 | 827 | 65.25 | 0.412 | 1.57 |
| T9 | 40×69 | 2760 | 50508 | 856 | 57.10 | 0.412 | 1.52 |
| T10 | 40×72 | 2880 | 57387 | 888 | 50.26 | 0.412 | 1.46 |
), ArticleFig(id=1281326844821615025, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=EN, label=Tab.7, caption=
Comparison between theoretical calculation and finite element simulation of displacements
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 弹塑性位移峰值 | | 残余变形 | | 弹性位移峰值 |
|---|
| 理论计算 | 模拟结果 | 误差 | 理论计算 | 模拟结果 | 误差 | 理论计算 | 模拟结果 | 误差 |
|---|
| T1 | 13.732 | 14.282 | −3.85% | | 6.869 | 7.176 | −4.28% | | 6.863 | 7.106 | −3.42% |
| T2 | 10.780 | 10.984 | −1.86% | | 5.426 | 5.584 | −2.83% | | 5.354 | 5.400 | −0.85% |
| T3 | 8.827 | 9.077 | −2.75% | | 4.451 | 4.432 | 0.43% | | 4.376 | 4.645 | −5.79% |
| T4 | 6.771 | 6.872 | −1.47% | | 3.513 | 3.529 | −0.45% | | 3.258 | 3.343 | −2.54% |
| T5 | 5.558 | 5.721 | −2.85% | | 2.858 | 2.917 | −2.02% | | 2.700 | 2.804 | −3.71% |
| T6 | 41.485 | 42.298 | −1.92% | | 20.629 | 21.067 | −2.08% | | 20.856 | 21.231 | −1.77% |
| T7 | 32.760 | 33.490 | −2.18% | | 17.107 | 17.332 | −1.30% | | 15.653 | 16.158 | −3.13% |
| T8 | 26.169 | 26.674 | −1.89% | | 13.981 | 14.334 | −2.46% | | 12.188 | 12.340 | −1.23% |
| T9 | 21.121 | 21.651 | −2.45% | | 11.666 | 11.866 | −1.69% | | 9.455 | 9.785 | −3.37% |
| T10 | 17.197 | 17.728 | −3.00% | | 9.791 | 9.884 | −0.94% | | 7.406 | 7.844 | −5.58% |
), ArticleFig(id=1281326844901306802, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326821291569410, language=CN, label=表7, caption=
有限元模拟与理论计算结果数值对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 弹塑性位移峰值 | | 残余变形 | | 弹性位移峰值 |
|---|
| 理论计算 | 模拟结果 | 误差 | 理论计算 | 模拟结果 | 误差 | 理论计算 | 模拟结果 | 误差 |
|---|
| T1 | 13.732 | 14.282 | −3.85% | | 6.869 | 7.176 | −4.28% | | 6.863 | 7.106 | −3.42% |
| T2 | 10.780 | 10.984 | −1.86% | | 5.426 | 5.584 | −2.83% | | 5.354 | 5.400 | −0.85% |
| T3 | 8.827 | 9.077 | −2.75% | | 4.451 | 4.432 | 0.43% | | 4.376 | 4.645 | −5.79% |
| T4 | 6.771 | 6.872 | −1.47% | | 3.513 | 3.529 | −0.45% | | 3.258 | 3.343 | −2.54% |
| T5 | 5.558 | 5.721 | −2.85% | | 2.858 | 2.917 | −2.02% | | 2.700 | 2.804 | −3.71% |
| T6 | 41.485 | 42.298 | −1.92% | | 20.629 | 21.067 | −2.08% | | 20.856 | 21.231 | −1.77% |
| T7 | 32.760 | 33.490 | −2.18% | | 17.107 | 17.332 | −1.30% | | 15.653 | 16.158 | −3.13% |
| T8 | 26.169 | 26.674 | −1.89% | | 13.981 | 14.334 | −2.46% | | 12.188 | 12.340 | −1.23% |
| T9 | 21.121 | 21.651 | −2.45% | | 11.666 | 11.866 | −1.69% | | 9.455 | 9.785 | −3.37% |
| T10 | 17.197 | 17.728 | −3.00% | | 9.791 | 9.884 | −0.94% | | 7.406 | 7.844 | −5.58% |
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