Article(id=1241786728382534521, tenantId=1146029695717560320, journalId=1241701559352995854, issueId=1241786727631754095, articleNumber=null, orderNo=null, doi=10.13197/j.eeed.2025.0109, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1716825600000, receivedDateStr=2024-05-28, revisedDate=1719417600000, revisedDateStr=2024-06-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1773994627327, onlineDateStr=2026-03-20, pubDate=1740672000000, pubDateStr=2025-02-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773994627327, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773994627327, creator=13701087609, updateTime=1773994627327, updator=13701087609, issue=Issue{id=1241786727631754095, tenantId=1146029695717560320, journalId=1241701559352995854, year='2025', volume='45', issue='1', pageStart='1', pageEnd='235', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773994627149, creator=13701087609, updateTime=1773996954801, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241796490583146988, tenantId=1146029695717560320, journalId=1241701559352995854, issueId=1241786727631754095, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241796490583146989, tenantId=1146029695717560320, journalId=1241701559352995854, issueId=1241786727631754095, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=85, endPage=94, ext={EN=ArticleExt(id=1241786728579666814, articleId=1241786728382534521, tenantId=1146029695717560320, journalId=1241701559352995854, language=EN, title=Bearing capacity prediction of SPRC coupling beams with small span-to-height ratio based on machine learning method, columnId=null, journalTitle=Earthquake Engineering and Engineering Dynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to predict the bearing capacity of steel plate-concrete reinforced composite (SPRC) coupling beams more conveniently. In this paper, it is of great significance to study the bearing capacity prediction model of SPRC coupling beams by machine learning (ML) method. Firstly, the SPRC coupling beam database is established by collecting the existing experimental data. On this basis, six ML algorithms, including extreme learning machine (ELM) algorithm, back propagation neural network (BPNN) algorithm, support vector machine (SVM) algorithm, K-nearest neighbor (KNN) algorithm, random forest (RF) algorithm and extreme gradient boosting (XGBoost) algorithm were used for data regression training. Through the comparative analysis of model performance indicators, it is found that the prediction model based on XGBoost algorithm has the best robustness and generalization ability. Compared with the softened strut-and-tie model (SSTM), it has higher calculation accuracy and stability. A high-precision SPRC coupling beam bearing capacity prediction model based on ML method is proposed. In addition, the sensitivity analysis of the parameters affecting the bearing capacity of SPRC coupling beams is also carried out. The results show that the influence degree of each characteristic parameter on the bearing capacity of SPRC coupling beams is in descending order as follows: steel plate ratio (ρp), coupling beam section height (h), coupling beam section width (b), span-depth ratio (ln/h), stirrup yield strength (fvy), longitudinal reinforcement ratio (ρs), longitudinal reinforcement yield strength (fsy), stirrup ratio (ρt), steel plate yield strength (fpy), concrete compressive strength (fcu).
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为了更方便地预测小跨高比钢板-混凝土组合(steel plate-concrete reinforced composite,SPRC)连梁的承载力,通过机器学习(machine learning,ML)的方法对SPRC连梁展开承载力预测模型研究,具有重要意义。首先收集了现有的试验数据建立了SPRC连梁数据库,在此基础上,通过极限学习机(extreme learning machine,ELM)算法、反向传播神经网络(back propagation neural network,BPNN)算法、支持向量机(support vector machine,SVM)算法、K临近(K nearest neighbor,KNN)算法、随机森林(random forest,RF)算法以及极端梯度提升(extreme gradient boosting,XGBoost)算法等6种ML算法进行了数据的回归训练。通过模型性能指标对比分析,发现基于XGBoost算法的预测模型具有最好的鲁棒性和泛化能力,相比于软化拉压杆模型(softened strut-and-tie model,SSTM)具有更高的计算精度和稳定性,并提出了基于ML方法的高精度SPRC连梁承载力预测模型。此外,还对影响SPRC连梁的承载力参数进行了敏感性分析,结果表明各特征参数对于SPRC连梁承载力的影响程度从大到小依次是:钢板配板率(ρp)、连梁截面高度(h)、连梁截面宽度(b)、跨高比(ln/h)、箍筋屈服强度(fvy)、纵筋配筋率(ρs)、纵筋屈服强度(fsy)、箍筋配箍率(ρt)、钢板屈服强度(fpy)、混凝土抗压强度(fcu)。
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1.西安理工大学 土木建筑工程学院,陕西 西安 710048, bio={"content":"
田建勃(1986—),男,副教授,博士,主要从事钢-混凝土组合结构及其抗震研究。E-mail:tianjianbo@xaut.edu.cn
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田建勃(1986—),男,副教授,博士,主要从事钢-混凝土组合结构及其抗震研究。E-mail:tianjianbo@xaut.edu.cn
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2.China Construction First Group Corporation Limited, Beijing 100161, China), AuthorCompanyExt(id=1241802944849445448, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, companyId=1241802944832668230, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.中国建筑一局(集团)有限公司,北京 100161)])], figs=[ArticleFig(id=1241802951174455363, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Fig. 1, caption=
Schematic diagram of ML algorithm, figureFileSmall=Xw+j/pCzmjYqNMVGt0+QKQ==, figureFileBig=c5dclp4o42sIrBtPRP7pYA==, tableContent=null), ArticleFig(id=1241802951321256016, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=图1, caption=
ML算法示意图, figureFileSmall=Xw+j/pCzmjYqNMVGt0+QKQ==, figureFileBig=c5dclp4o42sIrBtPRP7pYA==, tableContent=null), ArticleFig(id=1241802951493222496, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Fig. 2, caption=
Pearson correlation coefficient of characteristic parameters, figureFileSmall=OLoN+CNt6/0Lue7tZrxfMg==, figureFileBig=EAuYWB9P28Dk4rBQrOvJqw==, tableContent=null), ArticleFig(id=1241802952596324464, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=图2, caption=
特征参数的皮尔逊相关性系数, figureFileSmall=OLoN+CNt6/0Lue7tZrxfMg==, figureFileBig=EAuYWB9P28Dk4rBQrOvJqw==, tableContent=null), ArticleFig(id=1241802952705376381, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Fig. 3, caption=
Comparison of ML model prediction results, figureFileSmall=cgbVAZKdY/PH6S1qvbDqLw==, figureFileBig=Tdys4Atqj9efsqX3wDm33A==, tableContent=null), ArticleFig(id=1241802952847982731, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=图3, caption=
ML模型预测结果对比, figureFileSmall=cgbVAZKdY/PH6S1qvbDqLw==, figureFileBig=Tdys4Atqj9efsqX3wDm33A==, tableContent=null), ArticleFig(id=1241802953024143514, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Fig. 4, caption=
Comparison of ML model prediction performance, figureFileSmall=RgIKyrdxx08Q4gr4Ii/QGQ==, figureFileBig=yjN8gTddi6of1hx2mPcxaw==, tableContent=null), ArticleFig(id=1241802953175138475, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=图4, caption=
ML模型预测性能对比, figureFileSmall=RgIKyrdxx08Q4gr4Ii/QGQ==, figureFileBig=yjN8gTddi6of1hx2mPcxaw==, tableContent=null), ArticleFig(id=1241802953309356216, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Fig. 5, caption=
Comparison of shear capacity prediction of SPFRC coupling beams, figureFileSmall=/7O0FdaPee1Y8HaFCi9XpA==, figureFileBig=iHhab9fksfz9mx/Wj4OZsw==, tableContent=null), ArticleFig(id=1241802953451962566, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=图5, caption=
SPFRC连梁抗剪承载力预测对比, figureFileSmall=/7O0FdaPee1Y8HaFCi9XpA==, figureFileBig=iHhab9fksfz9mx/Wj4OZsw==, tableContent=null), ArticleFig(id=1241802953569403089, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Fig. 6, caption=
Sensitivity analysis of characteristic parameters of SPRC coupling beam, figureFileSmall=gKlYKs1IDR7Ffb+hVoQZRw==, figureFileBig=hhmi0SMGlQbjRB6ajhlv9A==, tableContent=null), ArticleFig(id=1241802953695232224, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=图6, caption=
SPRC连梁特征参数敏感性分析, figureFileSmall=gKlYKs1IDR7Ffb+hVoQZRw==, figureFileBig=hhmi0SMGlQbjRB6ajhlv9A==, tableContent=null), ArticleFig(id=1241802953829449965, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Table 1, caption=
Optimal hyperparameter setting of ML model
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法类型 | 超参数 | 取值 | 算法类型 | 超参数 | 取值 |
|---|
| ELM | hidden_layers | 20 | KNN | n_neighbors | 3 |
| activate_model | sig | weights | uniform |
| BPNN | hidden_layers | 5 | RF | n_estimators | 500 |
| max_iteration | 1000 | Max_features | 5 |
| learning_rate | 0.100 | Min_samples_leaf | 5 |
| SVM | C | 20 | XGBoost | n_estimators | 300 |
| kernal | RBF | Max_depth | 1 |
| gamma | 0.1 | Learning_rate | 0.100 |
), ArticleFig(id=1241802953896558841, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=表1, caption=
ML模型最优超参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法类型 | 超参数 | 取值 | 算法类型 | 超参数 | 取值 |
|---|
| ELM | hidden_layers | 20 | KNN | n_neighbors | 3 |
| activate_model | sig | weights | uniform |
| BPNN | hidden_layers | 5 | RF | n_estimators | 500 |
| max_iteration | 1000 | Max_features | 5 |
| learning_rate | 0.100 | Min_samples_leaf | 5 |
| SVM | C | 20 | XGBoost | n_estimators | 300 |
| kernal | RBF | Max_depth | 1 |
| gamma | 0.1 | Learning_rate | 0.100 |
), ArticleFig(id=1241802954030776581, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Table 2, caption=
Value range of SPRC coupling beam parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据来源 | b/mm | h/mm | ln/h | fcu/MPa | fsy/MPa | fty/MPa | fpy/MPa | ρs/% | ρt/% | ρp/% | V/kN | n |
|---|
| 研究试验[37] | 160 | 320 | 1.5 | 41.18~69.30 | 440 | 343 | 358 | 0.86 | 0.63 | 4.42 | 352~471 | 2 |
| 研究模拟[37] | 160 | 320 | 1.0~2.5 | 62.5~81.25 | 440 | 343 | 358 | 1.31~2.67 | 0.63~1.05 | 2.76~5.53 | 346~572 | 12 |
| SUBEDI等[31] | 182 | 300 | 2.4 | 41.8~49.8 | 332~338 | 0 | 295~325 | 1.78~2.78 | 0 | 3.42~4.78 | 200~222 | 2 |
| CHENG[32] | 150 | 300 | 1.30~2.20 | 42.40~61.00 | 462~500 | 0 | 200~270 | 0 | 2.45~3.22 | 4.92~12.43 | 310~711 | 16 |
| LAW[25-27] | 120 | 600 | 1.20 | 51.20 | 549 | 426 | 311 | 0.67 | 0.23 | 2.39 | 474 | 1 |
| SUEN[33] | 150 | 300 | 1.00~2.00 | 37.00~52.90 | 467~536 | 0~443 | 241~353 | 0~0.75 | 1.61 | 2.46~3.69 | 290~405 | 8 |
| TIAN等[34-35] | 160~180 | 320~350 | 0.90~2.00 | 34.90~69.30 | 435~463 | 318~343 | 235~370 | 0.56~0.63 | 0.85~1.79 | 3.07~5.11 | 454~657 | 6 |
| HOU等[28-29,36] | 160 | 400 | 1.00~2.50 | 40.00~50.80 | 445~472 | 412~523 | 305~367 | 0.63 | 0.88 | 3.62~6.03 | 362~796 | 8 |
| DENG[30] | 120 | 400 | 1.50~2.50 | 55.30~61.50 | 427 | 405 | 248 | 0.56 | 1.12~2.23 | 4.21 | 377~455 | 4 |
| ZHANG[38] | 150 | 300 | 2.50 | 42.30 | 381 | 308 | 345 | 0.56 | 1.99 | 1.63 | 198 | 1 |
), ArticleFig(id=1241802954156605710, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=表2, caption=
SPRC连梁参数取值范围
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据来源 | b/mm | h/mm | ln/h | fcu/MPa | fsy/MPa | fty/MPa | fpy/MPa | ρs/% | ρt/% | ρp/% | V/kN | n |
|---|
| 研究试验[37] | 160 | 320 | 1.5 | 41.18~69.30 | 440 | 343 | 358 | 0.86 | 0.63 | 4.42 | 352~471 | 2 |
| 研究模拟[37] | 160 | 320 | 1.0~2.5 | 62.5~81.25 | 440 | 343 | 358 | 1.31~2.67 | 0.63~1.05 | 2.76~5.53 | 346~572 | 12 |
| SUBEDI等[31] | 182 | 300 | 2.4 | 41.8~49.8 | 332~338 | 0 | 295~325 | 1.78~2.78 | 0 | 3.42~4.78 | 200~222 | 2 |
| CHENG[32] | 150 | 300 | 1.30~2.20 | 42.40~61.00 | 462~500 | 0 | 200~270 | 0 | 2.45~3.22 | 4.92~12.43 | 310~711 | 16 |
| LAW[25-27] | 120 | 600 | 1.20 | 51.20 | 549 | 426 | 311 | 0.67 | 0.23 | 2.39 | 474 | 1 |
| SUEN[33] | 150 | 300 | 1.00~2.00 | 37.00~52.90 | 467~536 | 0~443 | 241~353 | 0~0.75 | 1.61 | 2.46~3.69 | 290~405 | 8 |
| TIAN等[34-35] | 160~180 | 320~350 | 0.90~2.00 | 34.90~69.30 | 435~463 | 318~343 | 235~370 | 0.56~0.63 | 0.85~1.79 | 3.07~5.11 | 454~657 | 6 |
| HOU等[28-29,36] | 160 | 400 | 1.00~2.50 | 40.00~50.80 | 445~472 | 412~523 | 305~367 | 0.63 | 0.88 | 3.62~6.03 | 362~796 | 8 |
| DENG[30] | 120 | 400 | 1.50~2.50 | 55.30~61.50 | 427 | 405 | 248 | 0.56 | 1.12~2.23 | 4.21 | 377~455 | 4 |
| ZHANG[38] | 150 | 300 | 2.50 | 42.30 | 381 | 308 | 345 | 0.56 | 1.99 | 1.63 | 198 | 1 |
), ArticleFig(id=1241802954290823456, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Table 3, caption=
Performance metrics of ML models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | 组别 | R2 | RMSE/kN | MAE/kN | MAPE/% |
|---|
| ELM | 训练集 | 0.930 | 30.970 | 24.280 | 5.460 |
| 测试集 | 0.920 | 45.890 | 37.220 | 8.220 |
| BPNN | 训练集 | 0.960 | 29.860 | 21.350 | 4.680 |
| 测试集 | 0.910 | 42.900 | 31.410 | 6.810 |
| KNN | 训练集 | 0.780 | 65.040 | 47.660 | 10.180 |
| 测试集 | 0.760 | 71.790 | 53.800 | 14.230 |
| SVM | 训练集 | 0.980 | 20.860 | 13.570 | 2.900 |
| 测试集 | 0.940 | 36.650 | 29.980 | 6.830 |
| RF | 训练集 | 0.960 | 43.570 | 30.760 | 6.710 |
| 测试集 | 0.930 | 40.870 | 31.200 | 7.470 |
| XGBoost | 训练集 | 0.970 | 23.740 | 18.980 | 4.130 |
| 测试集 | 0.960 | 27.960 | 23.530 | 5.630 |
), ArticleFig(id=1241802954391486763, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=表3, caption=
ML模型的性能度量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | 组别 | R2 | RMSE/kN | MAE/kN | MAPE/% |
|---|
| ELM | 训练集 | 0.930 | 30.970 | 24.280 | 5.460 |
| 测试集 | 0.920 | 45.890 | 37.220 | 8.220 |
| BPNN | 训练集 | 0.960 | 29.860 | 21.350 | 4.680 |
| 测试集 | 0.910 | 42.900 | 31.410 | 6.810 |
| KNN | 训练集 | 0.780 | 65.040 | 47.660 | 10.180 |
| 测试集 | 0.760 | 71.790 | 53.800 | 14.230 |
| SVM | 训练集 | 0.980 | 20.860 | 13.570 | 2.900 |
| 测试集 | 0.940 | 36.650 | 29.980 | 6.830 |
| RF | 训练集 | 0.960 | 43.570 | 30.760 | 6.710 |
| 测试集 | 0.930 | 40.870 | 31.200 | 7.470 |
| XGBoost | 训练集 | 0.970 | 23.740 | 18.980 | 4.130 |
| 测试集 | 0.960 | 27.960 | 23.530 | 5.630 |
), ArticleFig(id=1241802954513121593, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=EN, label=Table 4, caption=
Comparison of test or simulated bearing capacity with XGBoost prediction model
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据来源 | 试件编号 | 试验或模拟承载力Vtest/kN | 预测结果Vpre/kN | Vtest/Vpre |
|---|
| 本文试验[37] | PRCB-1 | 453 | 464.220 | 0.980 |
| PRCB-2 | 471 | 468.250 | 1.010 |
| 本文模拟[37] | PRCB-T5 | 346 | 400.320 | 0.860 |
| PRCB-T6 | 387 | 410.420 | 0.940 |
| PRCB-T10 | 524 | 517.880 | 1.010 |
| PRCB-Z14 | 475 | 468.250 | 1.010 |
| PRCB-Z18 | 475 | 468.250 | 1.010 |
| PRCB-Z20 | 475 | 468.250 | 1.010 |
| PRCB-G60 | 482 | 468.250 | 1.030 |
| PRCB-G80 | 477 | 468.250 | 1.020 |
| PRCB-L1 | 572 | 546.240 | 1.050 |
| PRCB-C65 | 445 | 468.250 | 0.950 |
| PRCB-C75 | 473 | 468.250 | 1.010 |
| PRCB-C80 | 482 | 468.250 | 1.030 |
| SUBEDI等[31] | 5FP4 | 220 | 187.890 | 1.170 |
| 5FP6 | 222 | 229.030 | 0.970 |
| CHENG等[32] | 1P8S-25 | 320 | 338.490 | 0.950 |
| 1P10S-25 | 353 | 344.850 | 1.020 |
| 1P16S-25 | 520 | 544.720 | 0.950 |
| 1P20S-25 | 650 | 638.170 | 1.020 |
| 1P8S-20 | 427 | 386.670 | 1.100 |
| 1P10S-20 | 447 | 436.300 | 1.020 |
| 1P20S-20 | 634 | 657.360 | 0.960 |
| 2P8S-25 | 267 | 251.930 | 1.060 |
| 2P10S-25 | 310 | 308.150 | 1.010 |
| 2P20S-25 | 524 | 517.880 | 1.010 |
| 2P8S-20 | 244 | 278.390 | 0.880 |
| 2P10S-20 | 315 | 328.020 | 0.960 |
| 2P20S-20 | 581 | 552.280 | 1.050 |
| 3P8S-25 | 430 | 459.740 | 0.940 |
| 3P10S-25 | 486 | 509.420 | 0.950 |
| 3P20S-25 | 711 | 741.780 | 0.960 |
| LAM[25-27] | SPrc-Bg | 474 | 479.050 | 0.990 |
| SUEN[33] | M15/P4-S1 | 374 | 376.490 | 0.990 |
| M15/P6-S0 | 371 | 369.790 | 1.000 |
| C10/P4-S1 | 431 | 437.970 | 0.980 |
| C15/P4-S1 | 398 | 360.010 | 1.110 |
| C20/P4-S1 | 300 | 294.530 | 1.020 |
| C15/P4-S0 | 290 | 333.850 | 0.870 |
| C15/P4-S2 | 378 | 363.320 | 1.040 |
| C15/P6-S1 | 405 | 393.600 | 1.030 |
| TIAN等[34-35] | PRC-CB1 | 587 | 571.340 | 1.030 |
| PRC-CB2 | 638 | 626.580 | 1.020 |
| PRC-CB3 | 657 | 629.170 | 1.040 |
| PRC-CB6 | 742 | 704.540 | 1.050 |
| PRC-CB7 | 584 | 561.100 | 1.040 |
| PRC-NS1 | 456 | 473.740 | 0.960 |
| HOU等[28-29,36] | PRHTC-8t | 641 | 615.560 | 1.040 |
| PRHTC-10t | 722 | 665.190 | 1.090 |
| PRHTC-12t | 796 | 807.300 | 0.990 |
| PRHTC-1.0 | 708 | 693.510 | 1.020 |
| PRHTC-2.0 | 500 | 550.080 | 0.910 |
| SPRC-1 | 362 | 381.610 | 0.950 |
| SPRC-2 | 428 | 420.110 | 1.020 |
| SPRC-3 | 453 | 469.740 | 0.960 |
| 邓明科等[30] | CB-1.5 | 430 | 459.790 | 0.940 |
| DB-1.5 | 456 | 473.740 | 0.960 |
| CB-2.5 | 378 | 325.470 | 1.160 |
| DB-2.5 | 393 | 322.810 | 1.220 |
| 张刚[38] | CB25-1 | 198 | 179.370 | 1.100 |
| 平均值 | | | | 0.9903 |
| 标准差 | | | | 0.0668 |
| 变异系数 | | | | 0.0675 |
), ArticleFig(id=1241802954617979207, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241786728382534521, language=CN, label=表4, caption=
试验或模拟承载力与XGBoost预测模型对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据来源 | 试件编号 | 试验或模拟承载力Vtest/kN | 预测结果Vpre/kN | Vtest/Vpre |
|---|
| 本文试验[37] | PRCB-1 | 453 | 464.220 | 0.980 |
| PRCB-2 | 471 | 468.250 | 1.010 |
| 本文模拟[37] | PRCB-T5 | 346 | 400.320 | 0.860 |
| PRCB-T6 | 387 | 410.420 | 0.940 |
| PRCB-T10 | 524 | 517.880 | 1.010 |
| PRCB-Z14 | 475 | 468.250 | 1.010 |
| PRCB-Z18 | 475 | 468.250 | 1.010 |
| PRCB-Z20 | 475 | 468.250 | 1.010 |
| PRCB-G60 | 482 | 468.250 | 1.030 |
| PRCB-G80 | 477 | 468.250 | 1.020 |
| PRCB-L1 | 572 | 546.240 | 1.050 |
| PRCB-C65 | 445 | 468.250 | 0.950 |
| PRCB-C75 | 473 | 468.250 | 1.010 |
| PRCB-C80 | 482 | 468.250 | 1.030 |
| SUBEDI等[31] | 5FP4 | 220 | 187.890 | 1.170 |
| 5FP6 | 222 | 229.030 | 0.970 |
| CHENG等[32] | 1P8S-25 | 320 | 338.490 | 0.950 |
| 1P10S-25 | 353 | 344.850 | 1.020 |
| 1P16S-25 | 520 | 544.720 | 0.950 |
| 1P20S-25 | 650 | 638.170 | 1.020 |
| 1P8S-20 | 427 | 386.670 | 1.100 |
| 1P10S-20 | 447 | 436.300 | 1.020 |
| 1P20S-20 | 634 | 657.360 | 0.960 |
| 2P8S-25 | 267 | 251.930 | 1.060 |
| 2P10S-25 | 310 | 308.150 | 1.010 |
| 2P20S-25 | 524 | 517.880 | 1.010 |
| 2P8S-20 | 244 | 278.390 | 0.880 |
| 2P10S-20 | 315 | 328.020 | 0.960 |
| 2P20S-20 | 581 | 552.280 | 1.050 |
| 3P8S-25 | 430 | 459.740 | 0.940 |
| 3P10S-25 | 486 | 509.420 | 0.950 |
| 3P20S-25 | 711 | 741.780 | 0.960 |
| LAM[25-27] | SPrc-Bg | 474 | 479.050 | 0.990 |
| SUEN[33] | M15/P4-S1 | 374 | 376.490 | 0.990 |
| M15/P6-S0 | 371 | 369.790 | 1.000 |
| C10/P4-S1 | 431 | 437.970 | 0.980 |
| C15/P4-S1 | 398 | 360.010 | 1.110 |
| C20/P4-S1 | 300 | 294.530 | 1.020 |
| C15/P4-S0 | 290 | 333.850 | 0.870 |
| C15/P4-S2 | 378 | 363.320 | 1.040 |
| C15/P6-S1 | 405 | 393.600 | 1.030 |
| TIAN等[34-35] | PRC-CB1 | 587 | 571.340 | 1.030 |
| PRC-CB2 | 638 | 626.580 | 1.020 |
| PRC-CB3 | 657 | 629.170 | 1.040 |
| PRC-CB6 | 742 | 704.540 | 1.050 |
| PRC-CB7 | 584 | 561.100 | 1.040 |
| PRC-NS1 | 456 | 473.740 | 0.960 |
| HOU等[28-29,36] | PRHTC-8t | 641 | 615.560 | 1.040 |
| PRHTC-10t | 722 | 665.190 | 1.090 |
| PRHTC-12t | 796 | 807.300 | 0.990 |
| PRHTC-1.0 | 708 | 693.510 | 1.020 |
| PRHTC-2.0 | 500 | 550.080 | 0.910 |
| SPRC-1 | 362 | 381.610 | 0.950 |
| SPRC-2 | 428 | 420.110 | 1.020 |
| SPRC-3 | 453 | 469.740 | 0.960 |
| 邓明科等[30] | CB-1.5 | 430 | 459.790 | 0.940 |
| DB-1.5 | 456 | 473.740 | 0.960 |
| CB-2.5 | 378 | 325.470 | 1.160 |
| DB-2.5 | 393 | 322.810 | 1.220 |
| 张刚[38] | CB25-1 | 198 | 179.370 | 1.100 |
| 平均值 | | | | 0.9903 |
| 标准差 | | | | 0.0668 |
| 变异系数 | | | | 0.0675 |
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