Article(id=1208051027035656787, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1208051024368083510, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2406482, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1724860800000, receivedDateStr=2024-08-29, revisedDate=1743523200000, revisedDateStr=2025-04-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1765951409347, onlineDateStr=2025-12-17, pubDate=1751040000000, pubDateStr=2025-06-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765951409347, onlineIssueDateStr=2025-12-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765951409347, creator=13701087609, updateTime=1765951409347, updator=13701087609, issue=Issue{id=1208051024368083510, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='18', pageStart='7455', pageEnd='7883', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1765951408712, creator=13701087609, updateTime=1765951896766, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1208053071507198943, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1208051024368083510, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1208053071507198944, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1208051024368083510, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=7729, endPage=7742, ext={EN=ArticleExt(id=1208051027899683425, articleId=1208051027035656787, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Acoustic Emission Characteristics of Concrete Beam with Different Reinforcements during Bending and Damage Process, columnId=1156262729917780302, journalTitle=Science Technology and Engineering, columnName=Papers·Architectural Science, runingTitle=null, highlight=null, articleAbstract=
To analyze the crack development characteristics of different reinforcement concrete beams during bending failure, and to explore the acoustic emission characteristics and bending performance degradation of the beams, a four-point bending test was conducted in combination with acoustic emission technology to establish the relationship between the bending failure process and acoustic emission signals of three different concrete beams. The experimental results show that the RA(rise time/maximum amplitude)-AF(average frequency) signals during the damage evolution of concrete beams with different reinforcements have obvious differences, the proportion of shear crack signal RA of reinforced beams, less-reinforced beams, and super-reinforced beams is much higher than the proportion of diagonal crack signal AF. The common characteristics of the amplitude distribution of bending damage at various stages of differently reinforced beams are mainly reflected in the amplitude peaks in the frequency bands 4~6 kHz, 13.5~16 kHz, and 53~57 kHz. When the beam reaches a certain load, the amplitude peaks in the high-frequency band will suddenly rise, indicating the yielding of the internal reinforcement of the beam and the entry of the structure into the failure stage. This can be used as an important basis for monitoring the extent of internal damage to the structure through time-frequency transformation of acoustic emission signals.
, correspAuthors=Shi-yi ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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, authorCompany=null, fund=null, authors=null, authorsList=Da-zhong ZHANG, Shi-yi ZHANG, S M CHAYAN, Ying-fang FAN, Jun-Jie ZHENG), CN=ArticleExt(id=1208051040503566515, articleId=1208051027035656787, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=不同配筋混凝土梁受弯破坏过程的声发射特性, columnId=1156262730517565784, journalTitle=科学技术与工程, columnName=论文·建筑科学, runingTitle=null, highlight=null, articleAbstract=
为分析不同配筋混凝土梁受弯破坏过程裂缝发展特征,探讨梁体破坏声发射特性及抗弯性能退化规律,采用四点弯曲试验,结合声发射技术,建立三种不同配筋混凝土梁受弯破坏过程与声发射信号的联系。实验结果表明,不同配筋混凝土梁损伤演化过程中的上升角(rise time/maximum amplitude, RA)、平均频率(average frequency, AF)信号具有明显差异,适筋梁、少筋梁、超筋梁剪切裂缝信号RA占比77.6%、80.9%、78.95%远高于斜拉裂缝信号AF占比,混凝土梁破坏以剪切破坏为主。不同配筋梁弯曲损伤各阶段振幅分布的共同特征主要由频率区间4~6 kHz、13.5~16 kHz以及53~57 kHz的振幅峰值体现,梁体达到特殊荷载阶段时均会产生高频区间的振幅峰值突起,预示梁体内部钢筋屈服、结构进入破坏失稳阶段,以此可作为声发射信号时频转换监测结构内部损伤程度的重要依据。
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1 山东理工大学建筑工程与空间信息学院, 济南 255000, bio={"content":"
张大中(2001—),男,汉族,山东青岛人,硕士研究生。研究方向:土木工程材料。E-mail:zhangdz0929@163.com。
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张大中(2001—),男,汉族,山东青岛人,硕士研究生。研究方向:土木工程材料。E-mail:zhangdz0929@163.com。
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3 华中科技大学岩土与地下工程研究所, 武汉 430074)])])], keywords=[Keyword(id=1208085595415487348, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, orderNo=1, keyword=reinforced concrete beam), Keyword(id=1208085595574870912, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, orderNo=2, keyword=four-point bending), Keyword(id=1208085595738448778, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, orderNo=3, keyword=acoustic emission), Keyword(id=1208085595914609557, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, orderNo=4, keyword=numerical simulation), Keyword(id=1208085596065604510, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, orderNo=1, keyword=钢筋混凝土梁), Keyword(id=1208085596187239334, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, orderNo=2, keyword=四点弯曲), Keyword(id=1208085596346622901, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, orderNo=3, keyword=声发射), Keyword(id=1208085596506006462, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, orderNo=4, keyword=数值模拟)], refs=[Reference(id=1208085605079163228, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, doi=null, pmid=null, pmcid=null, year=2024, volume=19, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=MatthewsB, Palermo A, Logan T, journalName=Developments in the Built Environment, refType=null, unstructuredReference=MatthewsB,
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52(3): 350-359., articleTitle=Acoustic emission monitoring of damage and crack characteristics of corroded concrete beams subjected to bending, refAbstract=null)], funds=[Fund(id=1208085604726841670, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, awardId=51908342, language=CN, fundingSource=国家自然科学基金(51908342), fundOrder=null, country=null), Fund(id=1208085604848476490, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, awardId=ZR2018PEE021, language=CN, fundingSource=山东省自然科学基金(ZR2018PEE021), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1208085591632224872, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, xref=1, ext=[AuthorCompanyExt(id=1208085591644807787, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, companyId=1208085591632224872, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Reinforced concrete beam reinforcement design, figureFileSmall=TMtkY9WOVzlzk13JQp8l/g==, figureFileBig=hi5PPcvBszWtcoowZLsjQg==, tableContent=null), ArticleFig(id=1208085596958991323, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图1, caption=
钢筋混凝梁配筋设计, figureFileSmall=TMtkY9WOVzlzk13JQp8l/g==, figureFileBig=hi5PPcvBszWtcoowZLsjQg==, tableContent=null), ArticleFig(id=1208085597080626151, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.2, caption=
Experimental arrangement for flexural load capacity, figureFileSmall=qlTigZLNplWlmrIiVy+abA==, figureFileBig=kq8a4xu+HcbAT34NXmDJ2A==, tableContent=null), ArticleFig(id=1208085597223232498, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图2, caption=
抗弯承载能力实验布置, figureFileSmall=qlTigZLNplWlmrIiVy+abA==, figureFileBig=kq8a4xu+HcbAT34NXmDJ2A==, tableContent=null), ArticleFig(id=1208085597370033151, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.3, caption=
Acoustic emission detection device, figureFileSmall=2Wsw2Vx9zQCvpDf0kb3tQw==, figureFileBig=Bf7kP+9B6kjX1VVQO976Wg==, tableContent=null), ArticleFig(id=1208085597554581516, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图3, caption=
声发射检测装置, figureFileSmall=2Wsw2Vx9zQCvpDf0kb3tQw==, figureFileBig=Bf7kP+9B6kjX1VVQO976Wg==, tableContent=null), ArticleFig(id=1208085597667827728, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.4, caption=
Acoustic emission signal acquisition amplifier, figureFileSmall=aMARQKtKBuPqkuS+20ziwg==, figureFileBig=56iKDlLGepCsbf3fxwxIgg==, tableContent=null), ArticleFig(id=1208085597848182811, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图4, caption=
声发射信号采集放大器, figureFileSmall=aMARQKtKBuPqkuS+20ziwg==, figureFileBig=56iKDlLGepCsbf3fxwxIgg==, tableContent=null), ArticleFig(id=1208085598078869535, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.5, caption=
Sketch of the experimental design, figureFileSmall=TwXY4bUJub1g00YZi3cmHw==, figureFileBig=THz6SxMOZ1XwE38hbmbmfA==, tableContent=null), ArticleFig(id=1208085598271807531, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图5, caption=
实验设计简图 1~3为电子数显百分表;4~9为80 mm应变片;10~17为声发射采集点位
, figureFileSmall=TwXY4bUJub1g00YZi3cmHw==, figureFileBig=THz6SxMOZ1XwE38hbmbmfA==, tableContent=null), ArticleFig(id=1208085599500738614, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.6, caption=
Simplified reinforced concrete bond-slip constitutive model flowchart, figureFileSmall=QXBsDSL2p/U4464B9abetA==, figureFileBig=derXQbq19noq/2JBhP1nAQ==, tableContent=null), ArticleFig(id=1208085599651733569, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图6, caption=
钢筋混凝土粘结滑移本构模型简化流程图 τ为黏结应力;τu为极限黏结应力;Su为极限应力时损伤位移量;S为整体位移量;Sf为黏结失效对应损伤位移量
, figureFileSmall=QXBsDSL2p/U4464B9abetA==, figureFileBig=derXQbq19noq/2JBhP1nAQ==, tableContent=null), ArticleFig(id=1208085599744008261, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.7, caption=
Uuiaxial loading path of the concrete plastic damage model, figureFileSmall=8kT7olkbXH0UmZAQ69b38A==, figureFileBig=Hy2WDqwDvpIVf/r7a31U3Q==, tableContent=null), ArticleFig(id=1208085599865643085, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图7, caption=
混凝土塑性损伤模型单轴加载路径图, figureFileSmall=8kT7olkbXH0UmZAQ69b38A==, figureFileBig=Hy2WDqwDvpIVf/r7a31U3Q==, tableContent=null), ArticleFig(id=1208085600012443732, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.8, caption=
Component assembly, figureFileSmall=5HxaEg/EiGVyG9BdH3ch3Q==, figureFileBig=h2Ke6jYOxOzMpLMoSx24QA==, tableContent=null), ArticleFig(id=1208085600138272861, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图8, caption=
部件组装, figureFileSmall=5HxaEg/EiGVyG9BdH3ch3Q==, figureFileBig=h2Ke6jYOxOzMpLMoSx24QA==, tableContent=null), ArticleFig(id=1208085600306045033, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.9, caption=
Mesh division, figureFileSmall=YJgXbIMkdHeY1LlsIfIgYw==, figureFileBig=DdsPD6x+eX8f9MWhFbfWrA==, tableContent=null), ArticleFig(id=1208085600419291246, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图9, caption=
网格划分, figureFileSmall=YJgXbIMkdHeY1LlsIfIgYw==, figureFileBig=DdsPD6x+eX8f9MWhFbfWrA==, tableContent=null), ArticleFig(id=1208085600545120376, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.10, caption=
Crack Height development pattern of beams with different reinforcements, figureFileSmall=sJYCwwnCOLwzoQmn5WLZPQ==, figureFileBig=uWft/xw0+waB7kBtafU7QQ==, tableContent=null), ArticleFig(id=1208085600679338109, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图10, caption=
不同配筋梁裂缝高度发展规律, figureFileSmall=sJYCwwnCOLwzoQmn5WLZPQ==, figureFileBig=uWft/xw0+waB7kBtafU7QQ==, tableContent=null), ArticleFig(id=1208085600805167239, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.11, caption=
Load deflection curves of reinforced concrete beams with tensile damage extension variations, figureFileSmall=pAjNcixmJGKy/eaiwUsICg==, figureFileBig=HHdDEjV+12WDhHfWnQNG/g==, tableContent=null), ArticleFig(id=1208085600939384979, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图11, caption=
适筋混凝土梁荷载挠度曲线与受拉损伤扩展变化, figureFileSmall=pAjNcixmJGKy/eaiwUsICg==, figureFileBig=HHdDEjV+12WDhHfWnQNG/g==, tableContent=null), ArticleFig(id=1208085601027465367, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.12, caption=
Load deflection curve of less reinforced concrete beam with tensile damage extension variations, figureFileSmall=ZO0vg8ZiYKP1+1UBQ8HIug==, figureFileBig=pTLAGxvd3sn1WEX7o5+Jig==, tableContent=null), ArticleFig(id=1208085601157488800, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图12, caption=
少筋混凝土梁荷载挠度曲线与受拉损伤扩展变化, figureFileSmall=ZO0vg8ZiYKP1+1UBQ8HIug==, figureFileBig=pTLAGxvd3sn1WEX7o5+Jig==, tableContent=null), ArticleFig(id=1208085601304289451, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.13, caption=
Load deflection curve of over reinforced concrete beam with tensile damage extension variations, figureFileSmall=N123C7ueQ3vrp6uDqClaNg==, figureFileBig=aY/HaSYX37plzeAa0xKTSA==, tableContent=null), ArticleFig(id=1208085601392369839, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图13, caption=
超筋混凝土梁荷载挠度曲线与受拉损伤扩展变化, figureFileSmall=N123C7ueQ3vrp6uDqClaNg==, figureFileBig=aY/HaSYX37plzeAa0xKTSA==, tableContent=null), ArticleFig(id=1208085601497227449, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.14, caption=
Stress-strain and tensile section height zone variation of reinforced cnncrete beams, figureFileSmall=CC7JdPMzibQYXRtWgLn1sA==, figureFileBig=NyFo1+Bt7/n3WTy6zKjHUA==, tableContent=null), ArticleFig(id=1208085601564336317, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图14, caption=
适筋混凝土梁应力应变及受拉截面高度区变化, figureFileSmall=CC7JdPMzibQYXRtWgLn1sA==, figureFileBig=NyFo1+Bt7/n3WTy6zKjHUA==, tableContent=null), ArticleFig(id=1208085601694359750, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.15, caption=
Stress-strain and tensile section height zone variation of less reinforced cnncrete beams, figureFileSmall=msD0d0085vRSsEpRtV7LPw==, figureFileBig=o3Ss1l8xZMvVxrLnZ8LC8g==, tableContent=null), ArticleFig(id=1208085601828577485, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图15, caption=
少筋混凝土梁应力应变及受拉截面高度区变化, figureFileSmall=msD0d0085vRSsEpRtV7LPw==, figureFileBig=o3Ss1l8xZMvVxrLnZ8LC8g==, tableContent=null), ArticleFig(id=1208085601971183835, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.16, caption=
Stress-strain and tensile section height zone variation of over reinforced cnncrete beams, figureFileSmall=0RGbW9bkIA2ZRwFoDvaG+Q==, figureFileBig=Kg1lKc5hfMzz9YQvJOKtmw==, tableContent=null), ArticleFig(id=1208085602076041443, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图16, caption=
超筋混凝土梁应力应变及受拉截面高度区变化, figureFileSmall=0RGbW9bkIA2ZRwFoDvaG+Q==, figureFileBig=Kg1lKc5hfMzz9YQvJOKtmw==, tableContent=null), ArticleFig(id=1208085602214453484, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.17, caption=
Plot of acoustic emission ringing counts versus amplitude loading time for different reinforced cnncrete beams, figureFileSmall=Y1izZnmcXLEi1MtQOyMQgQ==, figureFileBig=55AIkjcPr5hzQmpigNdO+Q==, tableContent=null), ArticleFig(id=1208085602302533876, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图17, caption=
不同配筋混凝土梁声发射振铃计数与幅度荷载时间图, figureFileSmall=Y1izZnmcXLEi1MtQOyMQgQ==, figureFileBig=55AIkjcPr5hzQmpigNdO+Q==, tableContent=null), ArticleFig(id=1208085602386419964, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.18, caption=
RA-AF distribution of cnncrete beams with different reinforcements, figureFileSmall=xRYBlkTs7gB0SrunoCzslg==, figureFileBig=4+ecLic2lYFKWQ84DD4MsQ==, tableContent=null), ArticleFig(id=1208085602478694658, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图18, caption=
不同配筋混凝土梁RA-AF 分布关系, figureFileSmall=xRYBlkTs7gB0SrunoCzslg==, figureFileBig=4+ecLic2lYFKWQ84DD4MsQ==, tableContent=null), ArticleFig(id=1208085602575163654, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.19, caption=
Time domain to frequency domain analysis of beams with different reinforcements, figureFileSmall=vqqxzY9pjUj5Fa6VbcYhTQ==, figureFileBig=NNL+yIhddnrN/jQXAZPOKw==, tableContent=null), ArticleFig(id=1208085602730352910, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图19, caption=
不同配筋梁时域转频域分析, figureFileSmall=vqqxzY9pjUj5Fa6VbcYhTQ==, figureFileBig=NNL+yIhddnrN/jQXAZPOKw==, tableContent=null), ArticleFig(id=1208085602860376341, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Fig.20, caption=
Variation pattern of bavalue for different reinforced concrete beams in various stages, figureFileSmall=eCq8TmfYjTup0BqQe6j20g==, figureFileBig=u36QmUp0M6t3ecXTC2nbig==, tableContent=null), ArticleFig(id=1208085604022198551, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=图20, caption=
不同配筋混凝土梁各阶段ba的变化规律, figureFileSmall=eCq8TmfYjTup0BqQe6j20g==, figureFileBig=u36QmUp0M6t3ecXTC2nbig==, tableContent=null), ArticleFig(id=1208085604152221985, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Table 1, caption=
Design of concrete beam reinforcement
, figureFileSmall=null, figureFileBig=null, tableContent=
| 梁体分类 | 纵筋 | 架立筋 | 箍筋 |
| 适筋梁 | 2B14 | 2A10 | A8@50 |
| 少筋梁 | 2A6 | 2A10 | A6@100 |
| 超筋梁 | 2B22 | 2A10 | A8@50 |
), ArticleFig(id=1208085604265468199, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=表1, caption=
混凝土梁配筋设计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 梁体分类 | 纵筋 | 架立筋 | 箍筋 |
| 适筋梁 | 2B14 | 2A10 | A8@50 |
| 少筋梁 | 2A6 | 2A10 | A6@100 |
| 超筋梁 | 2B22 | 2A10 | A8@50 |
), ArticleFig(id=1208085604391297328, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=EN, label=Table 2, caption=
Concrete proportion design
, figureFileSmall=null, figureFileBig=null, tableContent=
| 强度等级 | 水/ (kg·m-3) | 水泥/ (kg·m-3) | 砂/ (kg·m-3) | 石子/ (kg·m-3) |
| C30 | 175 | 343 | 621 | 1 261 |
), ArticleFig(id=1208085604508737848, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1208051027035656787, language=CN, label=表2, caption=
混凝土配合比设计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 强度等级 | 水/ (kg·m-3) | 水泥/ (kg·m-3) | 砂/ (kg·m-3) | 石子/ (kg·m-3) |
| C30 | 175 | 343 | 621 | 1 261 |
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