Article(id=1149742007205147458, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149741999626043609, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2024.06.016, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1716998400000, receivedDateStr=2024-05-30, revisedDate=1724947200000, revisedDateStr=2024-08-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1752049455690, onlineDateStr=2025-07-09, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752049455690, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752049455690, creator=13701087609, updateTime=1752049455690, updator=13701087609, issue=Issue{id=1149741999626043609, tenantId=1146029695717560320, journalId=1146123302524792850, year='2024', volume='37', issue='6', pageStart='1', pageEnd='148', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1752049453884, creator=13701087609, updateTime=1753780113622, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157000912746139776, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149741999626043609, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157000912746139777, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149741999626043609, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=115, endPage=122, ext={EN=ArticleExt(id=1149742007372919620, articleId=1149742007205147458, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Mechanical Performance of Steel Fiber Reinforced Concrete Segment with Oblique Bolt Joints, columnId=1152669336394183038, journalTitle=Urban Rapid Rail Transit, columnName=Civil Engineering Technology, runingTitle=null, highlight=null, articleAbstract=
This study explores the applicability of oblique bolt joints in smalldiameter shield tunnel beam melting (TBM) tunnels, clarifying their mechanical properties and damage mechanisms. A segment structure with an external diameter of 6.2 m and a thickness of 350 mm was utilized as a prototype for conducting bending performance tests on steel fiber concrete segments with oblique bolted joints under four different horizontal axial force conditions. The analysis focused on the deformation characteristics and flexural performance of the segment joints across varying axial force levels, as well as the failure processes and mechanical properties under failure conditions. The results showed that the higher the axial force on the segment joints, the higher the joint stiffness, requiring larger bending moments to open the joint. In other words, the joint axial force can be actively increased by increasing the bolt preload or by applying annular prestressing to improve the joint stiffness. Compression of the sealing gasket under joint axial force results in stress concentrations within the sealing groove. Therefore, selecting an appropriate sealing gasket or optimizing the sealing groove structure is essential in the design process. The study also found that enhancing the compressive strength of the top concrete and reducing the insertion angle of the oblique bolt significantly improve joint bearing capacity. These findings provide valuable guidance for the design of segment joints.
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为探究斜螺栓接头在小直径盾构隧道中的适用性,明晰斜螺栓接头的力学特性及破坏机理,本文以外径6.2m、厚度350mm的管片结构为原型,开展4种水平轴力工况下钢纤维混凝土管片斜螺栓接头抗弯性能试验,分析不同轴力水平下管片接头的变形特征及抗弯性能,研究破坏工况下管片接头的承载特性和破坏机理。研究结果表明:管片接头承受的轴力越高,则接头抗弯刚度越高,接缝张开所需弯矩越大,即可通过提高螺栓预紧力或施加环向预应力主动提高接头轴力,以提高接头刚度;密封垫压缩后会造成密封槽处应力集中,设计中应选取匹配的密封垫或优化密封槽构造;破坏工况下,λ达到0.89时接缝顶部产生初始裂纹,最终因接缝顶部混凝土压溃而突然破坏,但斜螺栓未屈服,表明增强顶部混凝土抗压强度和降低斜螺栓插入角对接头承载力的提高是有利的。研究结论可用于指导管片接头设计。
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, authorsList=阳卫卫, 贾永刚, 吴帆, 鲁卫东, 崔宏志, 陈湘生)}, authors=[Author(id=1153991660800299038, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=yangweiwei@shenzhenmc.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1153991661081317408, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, authorId=1153991660800299038, language=EN, stringName=Weiwei YANG, firstName=Weiwei, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Loading device and method for segmental joint test, figureFileSmall=NyYHy2yEVeOonKjZjy+pRg==, figureFileBig=3Xc/UHaw2NOZesaklRWtVw==, tableContent=null), ArticleFig(id=1153991664877162572, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 2, caption=
接头试验加载装置与方案, figureFileSmall=NyYHy2yEVeOonKjZjy+pRg==, figureFileBig=3Xc/UHaw2NOZesaklRWtVw==, tableContent=null), ArticleFig(id=1153991664927494221, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 3, caption=
Schematic diagram of the loading process, figureFileSmall=FozYgJ7eTb3eMzr7+Wg92w==, figureFileBig=F1qYWylPrNm3817TsIXylA==, tableContent=null), ArticleFig(id=1153991664973631566, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 3, caption=
加载流程示意, figureFileSmall=FozYgJ7eTb3eMzr7+Wg92w==, figureFileBig=F1qYWylPrNm3817TsIXylA==, tableContent=null), ArticleFig(id=1153991665053323343, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 4, caption=
Layout of measuring points, figureFileSmall=FBgBYWDYyZmLZSr7veWorg==, figureFileBig=cI74E627Je/+/sBVNMe53Q==, tableContent=null), ArticleFig(id=1153991665128820816, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 4, caption=
测点布置, figureFileSmall=FBgBYWDYyZmLZSr7veWorg==, figureFileBig=cI74E627Je/+/sBVNMe53Q==, tableContent=null), ArticleFig(id=1153991665221095505, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 5, caption=
Bolt strain under elastic conditions, figureFileSmall=5LDgcugE2+PL4auRyXMPzQ==, figureFileBig=Ls2B3j1B/1ZTApO10ZHQtg==, tableContent=null), ArticleFig(id=1153991665300787282, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 5, caption=
弹性工况下螺栓应变, figureFileSmall=5LDgcugE2+PL4auRyXMPzQ==, figureFileBig=Ls2B3j1B/1ZTApO10ZHQtg==, tableContent=null), ArticleFig(id=1153991665372090451, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 6, caption=
The relationship between the critical bending moment of the bolt and axial force, figureFileSmall=z16BGU1zxov1NhfiUM7zBw==, figureFileBig=rriOo9w8JA0Cqk+gXXWByg==, tableContent=null), ArticleFig(id=1153991665447587924, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 6, caption=
螺栓临界弯矩与轴力关系, figureFileSmall=z16BGU1zxov1NhfiUM7zBw==, figureFileBig=rriOo9w8JA0Cqk+gXXWByg==, tableContent=null), ArticleFig(id=1153991665552445525, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 7, caption=
Concrete strain at the top of the joint under elastic conditions (axial force ${1800}\mathrm{{kN}}$ ), figureFileSmall=aCcKjnwnR+VPTOdi0LPrEA==, figureFileBig=7Ett1jJJ7fFNTBWrpXl+4Q==, tableContent=null), ArticleFig(id=1153991665657303126, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 7, caption=
弹性工况下接缝顶部混凝土应变(轴力 ${1800}\mathrm{{kN}}$ ), figureFileSmall=aCcKjnwnR+VPTOdi0LPrEA==, figureFileBig=7Ett1jJJ7fFNTBWrpXl+4Q==, tableContent=null), ArticleFig(id=1153991665720217687, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 8, caption=
Concrete strain at the middle of the top of the joint under elastic conditions, figureFileSmall=sppiVRWj/BFY8adM2nmUeQ==, figureFileBig=zEd8O1XQhsgOLiIgVwQmCA==, tableContent=null), ArticleFig(id=1153991665778937944, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 8, caption=
弹性工况下接缝顶部中间混凝土应变, figureFileSmall=sppiVRWj/BFY8adM2nmUeQ==, figureFileBig=zEd8O1XQhsgOLiIgVwQmCA==, tableContent=null), ArticleFig(id=1153991665837658201, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 9, caption=
Concrete strain at the side of the joint under elastic conditions (axial force ${1800}\mathrm{{kN}}$ ), figureFileSmall=dR+hK9YO8n/sNzrN51q52w==, figureFileBig=NDRIlrp0x6NUo+HPnuHsBQ==, tableContent=null), ArticleFig(id=1153991665896378458, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 9, caption=
弹性工况下接缝侧面混凝土应变(轴力 ${1800}\mathrm{{kN}}$ ), figureFileSmall=dR+hK9YO8n/sNzrN51q52w==, figureFileBig=NDRIlrp0x6NUo+HPnuHsBQ==, tableContent=null), ArticleFig(id=1153991665950904411, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 10, caption=
Joint deformation under elastic conditions, figureFileSmall=KS01incxYNVicRqyOLcptw==, figureFileBig=BxMjhyIqwS1mXayn2Wr8Yw==, tableContent=null), ArticleFig(id=1153991666177396828, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 10, caption=
弹性工况下接缝变形, figureFileSmall=KS01incxYNVicRqyOLcptw==, figureFileBig=BxMjhyIqwS1mXayn2Wr8Yw==, tableContent=null), ArticleFig(id=1153991666257088605, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 11, caption=
Joint bending stiffness under elastic loading conditions, figureFileSmall=xO2voFBwylGNQDkLX+V+Dg==, figureFileBig=pBCkelXuNVKH17FRMGTO8A==, tableContent=null), ArticleFig(id=1153991666324197470, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 11, caption=
弹性工况下接头抗弯刚度, figureFileSmall=xO2voFBwylGNQDkLX+V+Dg==, figureFileBig=pBCkelXuNVKH17FRMGTO8A==, tableContent=null), ArticleFig(id=1153991666387112031, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 12, caption=
The relationship between $\lambda$ , joint rotation angle, and bending stiffness, figureFileSmall=zzH8w+OwoNF1FHPLk+j2Bw==, figureFileBig=Is6J6n1TnSMJannuB9Ly6w==, tableContent=null), ArticleFig(id=1153991666445832288, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 12, caption=
$\lambda$与接头转角及抗弯刚度的关系, figureFileSmall=zzH8w+OwoNF1FHPLk+j2Bw==, figureFileBig=Is6J6n1TnSMJannuB9Ly6w==, tableContent=null), ArticleFig(id=1153991666512941153, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 13, caption=
Crack propagation of concrete surface, figureFileSmall=459dItXiBwzpQhgGtiLq4g==, figureFileBig=1JWs1rHuBiWLxsDWAnBwyQ==, tableContent=null), ArticleFig(id=1153991666567467106, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 13, caption=
混凝土表面裂纹扩展, figureFileSmall=459dItXiBwzpQhgGtiLq4g==, figureFileBig=1JWs1rHuBiWLxsDWAnBwyQ==, tableContent=null), ArticleFig(id=1153991666621993059, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 14, caption=
Lateral concrete strain during the failure stage, figureFileSmall=PPDuH923/1imn1VVG0kT0g==, figureFileBig=/d9PZ6DAavsXa5rKQmYJRA==, tableContent=null), ArticleFig(id=1153991666680713316, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 14, caption=
破坏阶段侧面混凝土应变, figureFileSmall=PPDuH923/1imn1VVG0kT0g==, figureFileBig=/d9PZ6DAavsXa5rKQmYJRA==, tableContent=null), ArticleFig(id=1153991666764599397, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Figure 15, caption=
Relationship between bolt strain and bending moment under failure conditions, figureFileSmall=3LH6JqV9hWjJuNgwg+Alfg==, figureFileBig=hDhWunpgBAZWpGRmr1CYcw==, tableContent=null), ArticleFig(id=1153991666827513958, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=图 15, caption=
破坏工况下螺栓应变与弯矩关系, figureFileSmall=3LH6JqV9hWjJuNgwg+Alfg==, figureFileBig=hDhWunpgBAZWpGRmr1CYcw==, tableContent=null), ArticleFig(id=1153991666915594343, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=EN, label=Table 1, caption=
Mechanical parameters of steel fiber concrete, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/ | 抗压强度/ MPa | 抗拉强度/ MPa | 抗折强度/ MPa | 弹性模量/ GPa |
| 2.56 | 70.2 | 3.7 | 6.2 | 38.5 |
| ${F}_{\mathrm{L}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{{R1}}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{{R2}}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{{R3}}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{R}4}/\mathrm{{MPa}}$ |
| 7.25 | 5.85 | 6.37 | 5.69 | 4.77 |
), ArticleFig(id=1153991666982703208, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742007205147458, language=CN, label=表 1, caption=
钢纤维混凝土力学参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/ | 抗压强度/ MPa | 抗拉强度/ MPa | 抗折强度/ MPa | 弹性模量/ GPa |
| 2.56 | 70.2 | 3.7 | 6.2 | 38.5 |
| ${F}_{\mathrm{L}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{{R1}}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{{R2}}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{{R3}}}/\mathrm{{MPa}}$ | ${f}_{\mathrm{R}4}/\mathrm{{MPa}}$ |
| 7.25 | 5.85 | 6.37 | 5.69 | 4.77 |
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