Article(id=1279793120258789473, tenantId=1146029695717560320, journalId=1278651655809875976, issueId=1279793083097269247, articleNumber=null, orderNo=null, doi=10.13206/j.gjgS25103001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1761753600000, receivedDateStr=2025-10-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1783056057275, onlineDateStr=2026-07-03, pubDate=1779379200000, pubDateStr=2026-05-22, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783056057275, onlineIssueDateStr=2026-07-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783056057275, creator=13701087609, updateTime=1783056057275, updator=13701087609, issue=Issue{id=1279793083097269247, tenantId=1146029695717560320, journalId=1278651655809875976, year='2026', volume='41', issue='5', pageStart='1', pageEnd='88', issueExtLink='null', onlineDate='null', pubDate='1779379200000', pubDateStr='2026-05-22', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1783056048416, creator='13701087609', updateTime=1783056895775, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1279796637363048955, tenantId=1146029695717560320, journalId=1278651655809875976, issueId=1279793083097269247, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1279796637367243260, tenantId=1146029695717560320, journalId=1278651655809875976, issueId=1279793083097269247, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=35, endPage=46, ext={EN=ArticleExt(id=1279793120493670498, articleId=1279793120258789473, tenantId=1146029695717560320, journalId=1278651655809875976, language=EN, title=Finite Element Analysis on the Fire Resistance of Space Frames with Steel Columns and Composite Floor Systems, columnId=1279793084791763029, journalTitle=Steel Construction, columnName=Fire Performance and Fire Protection of Steel-Concrete Composite Structures, runingTitle=null, highlight=null, articleAbstract=
In existing fire tests on space frames, significant deformations were observed in the components, yet the overall structure did not collapse. Therefore, studying the fire resistance of space frames while taking into account the overall performance of the structure is of paramount importance for ensuring the safety of the entire structure and reducing building fire protection costs. In existing finite element (FE) studies on space frames, beam elements were typically used to model steel columns and beams, which made it difficult to simulate the local buckling behavior of constrained beams and columns. For concrete slabs, shell elements were adopted, but they struggled to capture the expansive deformation induced by the non-uniform temperature field along the thickness direction. In contrast, the aforementioned issues were effectively addressed by employing shell elements for steel beams and solid elements for concrete slabs. Furthermore, in existing FE studies on individual components, when the thermal-mechanical-time constitutive relation was applied to concrete and the thermal-mechanical constitutive relation was used for steel, the FE calculation results for deformation and failure modes agreed more closely with the test results. Therefore, this study adopted an FE model combining shell-solid elements, along with the thermal-mechanical-time constitutive relation for concrete and the thermal-mechanical constitutive relation for steel, to simulate the fire test of the space frame with steel columns and composite floor systems. The FE calculation results for the temperature and deformation of beams, slabs, and columns were in good agreement with the test results. Moreover, the stress contour plot of the concrete slab accurately reflected the test phenomenon where the top surface of the reinforced concrete slab cracked while the bottom remained relatively intact when the slab underwent large deformation under fire. The well-established FE model can provide a solid foundation for subsequent fire resistance analysis of composite space frames and the development of fire resistance design methods.
, authors=Wenjun Wang
1, Faxing Ding
2, Binhui Jiang
2, Zhiwu Yu
2, Jing Liu
1, authorsList=Wenjun Wang, Faxing Ding, Binhui Jiang, Zhiwu Yu, Jing Liu, authorCompany=null, correspAuthors=Faxing Ding, 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, fund=null), CN=ArticleExt(id=1279793124784443519, articleId=1279793120258789473, tenantId=1146029695717560320, journalId=1278651655809875976, language=CN, title=钢柱-组合楼盖空间框架抗火性能有限元分析
, columnId=1279793084942757975, journalTitle=钢结构(中英文), columnName=钢-混凝土组合结构抗火性能与防火保护, runingTitle=null, highlight=null, articleAbstract=
已有空间框架火灾试验中,构件产生了较大的变形但整体结构仍未倒塌。因此,研究考虑结构整体性能的空间框架的抗火性能,对保证整体结构的安全和节约建筑防火成本具有重要意义。已有关于空间框架的有限元研究中,钢柱与钢梁采用梁单元,难以模拟受约束梁柱的局部屈曲行为,混凝土楼板采用壳单元,难以模拟其厚度方向温度场非均匀引起的膨胀变形。而采用壳单元模拟钢梁,实体单元模拟混凝土板时,能较好地解决上述问题。此外,已有关于单个构件的有限元研究中,混凝土采用热-力-时本构,钢材采用热-力本构模型,有限元计算变形与破坏形态与试验吻合更好。因此,采用壳-实体单元与混凝土热-力-时本构与钢材热-力本构模型相结合的有限元模型,对钢柱-组合楼盖空间框架结构体系的火灾试验进行了模拟,有限元计算的梁、板、柱温度和变形与试验结果吻合良好,且混凝土板应力云图能较好地反映火灾下钢筋混凝土板发生大变形时,板顶开裂而板底较为完好的试验现象。所建立的合理有限元模型可为后续开展组合空间框架结构的抗火分析及提出抗火设计方法奠定基础。
, authors=王文君
1, 丁发兴
2, 蒋彬辉
2, 余志武
2, 刘劲
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王文君,博士,讲师,主要从事钢-混凝土组合结构研究。
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2025., articleTitle=null, refAbstract=null)], funds=[Fund(id=1279793132866867399, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, awardId=51978664; 52008159, language=CN, fundingSource=国家自然科学基金项目(51978664; 52008159), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1279793125010935936, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, xref=1, ext=[AuthorCompanyExt(id=1279793125023518849, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, companyId=1279793125010935936, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Hunan Engineering Research Center of Development and Application of Ceramsite Concrete Technology,Hunan City University, Yiyang 413000, China), AuthorCompanyExt(id=1279793125031907458, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, companyId=1279793125010935936, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2School of Civil Engineering, Central South University, Changsha 410075, China), AuthorCompanyExt(id=1279793125149347973, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, companyId=1279793125136765059, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2中南大学土木工程学院,长沙 410075)])], figs=[ArticleFig(id=1279793128823558313, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.1, caption=
Test of a three-story three-span steel frame, figureFileSmall=6fxPj4ZoVH+jlSiq0SmRZw==, figureFileBig=aHVtDaldIf3cILgZtMRFVg==, tableContent=null), ArticleFig(id=1279793128882278570, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图1, caption=
3层3×3跨钢框架试验[4], figureFileSmall=6fxPj4ZoVH+jlSiq0SmRZw==, figureFileBig=aHVtDaldIf3cILgZtMRFVg==, tableContent=null), ArticleFig(id=1279793129054245035, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.2, caption=
Uniaxial stress-strain curves of concrete, figureFileSmall=mxZ/VJhdE58J3iPJI7s2dw==, figureFileBig=9W3o+FMo2GvC/6eksxu3Tw==, tableContent=null), ArticleFig(id=1279793129108770988, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图2, caption=
混凝土单轴受力应力-应变曲线示意, figureFileSmall=mxZ/VJhdE58J3iPJI7s2dw==, figureFileBig=9W3o+FMo2GvC/6eksxu3Tw==, tableContent=null), ArticleFig(id=1279793129175879853, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.3, caption=
Finite element model of the space frame, figureFileSmall=i0W2BHlDQrGqlX9mEo14Aw==, figureFileBig=7f148eBeDi67WkDPa2FdDg==, tableContent=null), ArticleFig(id=1279793129242988718, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图3, caption=
空间框架有限元模型, figureFileSmall=i0W2BHlDQrGqlX9mEo14Aw==, figureFileBig=7f148eBeDi67WkDPa2FdDg==, tableContent=null), ArticleFig(id=1279793129310097583, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.4, caption=
Comparison of calculated and experimental temperature (T) - fire time (tf) curves for slabs and steel beams, figureFileSmall=lxpKiBjQPpQ0VOvLq3sX5g==, figureFileBig=6lC0GZFeZPS/XRc+lDMM7g==, tableContent=null), ArticleFig(id=1279793129381400752, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图4, caption=
板与钢梁温度(T)‒受火时间(tf)计算曲线与试验曲线对比注:温度测点距板底的距离分别为0,30,60,90,120 mm。
, figureFileSmall=lxpKiBjQPpQ0VOvLq3sX5g==, figureFileBig=6lC0GZFeZPS/XRc+lDMM7g==, tableContent=null), ArticleFig(id=1279793129486258353, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.5, caption=
Comparison of calculated and experimental temperature (T) - fire time (tf) curves for steel beams, figureFileSmall=Gr7Hi7wk+vSdG9Q2IxXE4g==, figureFileBig=eF8j1ptOboRLbEQrgxhiOA==, tableContent=null), ArticleFig(id=1279793129561755826, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图5, caption=
钢梁温度(T)‒受火时间(tf)计算曲线与试验[4]曲线对比注:温度测点距板顶的距离分别为20,60,80,100,129,370 mm。
, figureFileSmall=Gr7Hi7wk+vSdG9Q2IxXE4g==, figureFileBig=eF8j1ptOboRLbEQrgxhiOA==, tableContent=null), ArticleFig(id=1279793129628864691, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.6, caption=
Comparison of calculated and experimental temperature (T) - fire time (tf) curves for steel columns, figureFileSmall=MtfZRXnbYTUKbhbo/mRldg==, figureFileBig=xMwYVBsBBKhUMEnQeZKp6A==, tableContent=null), ArticleFig(id=1279793129691779252, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图6, caption=
钢柱受火温度(T)‒受火时间(tf)计算曲线与试验[4]曲线对比注:对应测点位置参见文献[4-7]。
, figureFileSmall=MtfZRXnbYTUKbhbo/mRldg==, figureFileBig=xMwYVBsBBKhUMEnQeZKp6A==, tableContent=null), ArticleFig(id=1279793129754693813, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.7, caption=
Comparison of calculated and experimental mid-span displacement (δ) - fire time (tf) curves for slabs, figureFileSmall=L5NLN7RgZx0x08BwYWlykA==, figureFileBig=ExKEBB+q29+A7+HjnxAI5Q==, tableContent=null), ArticleFig(id=1279793129825996982, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图7, caption=
板跨中位移(δ)‒受火时间(tf)计算与试验曲线对比, figureFileSmall=L5NLN7RgZx0x08BwYWlykA==, figureFileBig=ExKEBB+q29+A7+HjnxAI5Q==, tableContent=null), ArticleFig(id=1279793129922465975, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.8, caption=
Comparison of calculated and experimental vertical displacement (δ) - fire time (tf) curves for steel beams, figureFileSmall=S99oWDaG9kOxGQ5V0ELNuQ==, figureFileBig=c2n1ITikNiQZrh1haA9mSA==, tableContent=null), ArticleFig(id=1279793130002157752, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图8, caption=
梁竖向位移(δ)‒受火时间(tf)计算与试验[4]曲线对比注:1~12为测点编号[4]。
, figureFileSmall=S99oWDaG9kOxGQ5V0ELNuQ==, figureFileBig=c2n1ITikNiQZrh1haA9mSA==, tableContent=null), ArticleFig(id=1279793130086043833, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.9, caption=
Comparison of calculated and experimental displacement (δ) - fire time (tf) curves for steel columns, figureFileSmall=LiCRc5E6GALmKT9aGFbVHQ==, figureFileBig=qbiQs8oiSvC52YA+a2Z8ng==, tableContent=null), ArticleFig(id=1279793130144764090, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图9, caption=
钢柱位移(δ)‒受火时间(tf)计算与试验[4]曲线对比, figureFileSmall=LiCRc5E6GALmKT9aGFbVHQ==, figureFileBig=qbiQs8oiSvC52YA+a2Z8ng==, tableContent=null), ArticleFig(id=1279793130224455867, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.10, caption=
Experimental cracks and maximum principal stress vectors on the slab top surface for the corner grid under fire only, figureFileSmall=v+gVzz0+7laOzQmIyRuvMA==, figureFileBig=DmcIyAh08RnP0juRwuED8Q==, tableContent=null), ArticleFig(id=1279793130312536252, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图10, caption=
仅角区格受火试验裂缝与板顶最大主应力矢量注:蓝色箭头所指内容为裂缝走向示意,下同;①~⑩为裂缝出现的顺序号。
, figureFileSmall=v+gVzz0+7laOzQmIyRuvMA==, figureFileBig=DmcIyAh08RnP0juRwuED8Q==, tableContent=null), ArticleFig(id=1279793130379645117, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.11, caption=
Experimental cracks and maximum principal stress vectors on the slab top surface for the middle grid under fire only, figureFileSmall=uWlAk7u9G8eT/AEf7Ck0PQ==, figureFileBig=UplvwtTUYxUkV5wTBXzUpA==, tableContent=null), ArticleFig(id=1279793130442559678, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图11, caption=
仅中区格受火试验裂缝与板最大主应力矢量, figureFileSmall=uWlAk7u9G8eT/AEf7Ck0PQ==, figureFileBig=UplvwtTUYxUkV5wTBXzUpA==, tableContent=null), ArticleFig(id=1279793130518057151, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.12, caption=
Experimental cracks and maximum principal stress vector diagrams of the 2×2 grid continuous slab under fire, figureFileSmall=jmz7hRXGCcm4YxwHIkQbVw==, figureFileBig=QzfqKMSCrgG2tbJWjzbBVw==, tableContent=null), ArticleFig(id=1279793130606137536, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图12, caption=
2×2区格连续板受火试验裂缝与受火板最大主应力矢量, figureFileSmall=jmz7hRXGCcm4YxwHIkQbVw==, figureFileBig=QzfqKMSCrgG2tbJWjzbBVw==, tableContent=null), ArticleFig(id=1279793130677440705, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.13, caption=
Experimental cracks and maximum principal stress vector diagrams of the 2×3 grid continuous slab under fire, figureFileSmall=y1QQ+taMA/gRKvqOSKlxhg==, figureFileBig=YgSGt07/KzstDcVjN5ERUg==, tableContent=null), ArticleFig(id=1279793132384522434, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图13, caption=
2×3区格连续板受火试验裂缝与板最大主应力矢量注:①~⑥为裂缝出现的顺序号。
, figureFileSmall=y1QQ+taMA/gRKvqOSKlxhg==, figureFileBig=YgSGt07/KzstDcVjN5ERUg==, tableContent=null), ArticleFig(id=1279793132501962947, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Fig.14, caption=
Comparison of FE-calculated deformation contour plots and observed deformation patterns in steel columns, figureFileSmall=ub0CipVntK+mSHeNNsr2FA==, figureFileBig=hZwdfxx/7zQfF5UnbIUVaw==, tableContent=null), ArticleFig(id=1279793132590043332, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=图14, caption=
有限元计算钢柱变形云图与试验变形对比[4], figureFileSmall=ub0CipVntK+mSHeNNsr2FA==, figureFileBig=hZwdfxx/7zQfF5UnbIUVaw==, tableContent=null), ArticleFig(id=1279793132669735109, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=EN, label=Table 1, caption=
Material properties of the test frame
, figureFileSmall=null, figureFileBig=null, tableContent=
| 钢柱hs×bf×tw×tf/mm | 钢梁hs×bf×tw×tf/mm | hc/mm | fcu/MPa | fy/MPa | c/mm |
|---|
| 200×200×8×12 | 250×125×6×9 | 120 | 33.8 | 426 | 15 |
), ArticleFig(id=1279793132741038278, tenantId=1146029695717560320, journalId=1278651655809875976, articleId=1279793120258789473, language=CN, label=表1, caption=
试验框架材料属性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 钢柱hs×bf×tw×tf/mm | 钢梁hs×bf×tw×tf/mm | hc/mm | fcu/MPa | fy/MPa | c/mm |
|---|
| 200×200×8×12 | 250×125×6×9 | 120 | 33.8 | 426 | 15 |
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