{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T05:01:34Z","timestamp":1780376494113,"version":"3.54.1"},"reference-count":25,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,8,17]],"date-time":"2020-08-17T00:00:00Z","timestamp":1597622400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The Special Fund Project for Basic Research Expenses of Central Public Welfare Institutes","award":["2018-9020"],"award-info":[{"award-number":["2018-9020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>In view of the structural form and common construction methods of traffic tunnels, the bearing performance of the closed-type CFST support designed for traffic tunnels is studied. The closed-type CFST support, which consist of a CFST girder with external shotcrete, is improved from the CFST support used in mine roadways. The reasonable cross-sectional form of closed-type CFST support is analyzed by the FEM. The closed-type CFST support is mainly composed of CFST arches, a shotcrete layer, sleeves, and blind flanges. The post-buckling analysis of the closed-type CFST circular arch members using circular-shaped, rectangular-shaped, triangular-shaped, and trapezoidal-shaped steel tubes is implemented. The result shows that the closed-type CFST support has better performance than the traditional tunnel support. The study also found that for closed-type CFST support, the triangular-shaped steel tube section has the highest bearing capacity, stiffness, and steel utilization rate, which is the preferred cross-sectional form. The bearing capacity of the circular-shaped steel tube section is acceptable. Moreover, the circular-shaped steel tubes are more convenient to obtain and process, so it is also an optional cross-sectional form. The square-shaped and trapezoidal-shaped steel tube sections have neither performance advantages nor economic efficiency, so these two forms are not recommended.<\/jats:p>","DOI":"10.3390\/sym12081368","type":"journal-article","created":{"date-parts":[[2020,8,17]],"date-time":"2020-08-17T21:58:53Z","timestamp":1597701533000},"page":"1368","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Preliminary Design and Cross-Sectional Form Study of Closed-Type Concrete-Filled Steel Tube Support for Traffic Tunnel"],"prefix":"10.3390","volume":"12","author":[{"given":"Lei","family":"Li","sequence":"first","affiliation":[{"name":"Bridge and Tunnel Research Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke","family":"Lei","sequence":"additional","affiliation":[{"name":"Key Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,17]]},"reference":[{"key":"ref_1","unstructured":"Jiang, B. (2016). Control Mechanism and Application of Confined Concrete for Super Large Section Tunnel on Weak Surrounding Rock. [Ph.D. Thesis, Shandong University]."},{"key":"ref_2","first-page":"16","article-title":"Recent development of steel-confined concrete structures in China","volume":"32","author":"Cai","year":"1999","journal-title":"Chin. Civ. Eng. J."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1567","DOI":"10.1016\/S0143-974X(02)00005-6","article-title":"Behavior and strength of circular concrete-filled tube columns","volume":"58","author":"Ahmed","year":"2002","journal-title":"J. Constr. Steel Res."},{"key":"ref_4","first-page":"125","article-title":"Behaviour of concrete filled steel square-tube stub column with steel-fiber reinforced high strength concrete","volume":"663","author":"Choi","year":"2013","journal-title":"Adv. Mat. Res."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"495","DOI":"10.1016\/j.engstruct.2018.07.023","article-title":"Structural behaviour and design of elliptical high-strength concrete-filled steel tubular short compression members","volume":"173","author":"Hassanein","year":"2018","journal-title":"Eng. Struct."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"04020097","DOI":"10.1061\/(ASCE)ST.1943-541X.0002646","article-title":"Shear strength of concrete-filled steel tubes based on experimental results","volume":"146","author":"Mansouri","year":"2020","journal-title":"J. Struct. Eng."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1016\/j.engstruct.2018.03.068","article-title":"Use of analytical lateral-axial strain relation in FE analysis of axially loaded rectangular CFST columns","volume":"166","author":"Ouyang","year":"2018","journal-title":"Eng. Struct."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1016\/j.jcsr.2018.08.038","article-title":"Flexural strength evaluation of concrete-filled steel tube (CFST) composite girder","volume":"151","author":"Cho","year":"2018","journal-title":"J. Constr. Steel Res."},{"key":"ref_9","unstructured":"Qu, G.L. (2013). Research on Flexural Performance of Concrete-Filled Steel Tubular Support and Its Application. [Ph.D. Thesis, China University of Mining & Technology]."},{"key":"ref_10","unstructured":"Liu, K.M. (2016). Compressed and Bending Performance Experiment of Concrete Filled Steel Tube Circular Arch and Supporting Application. [Ph.D. Thesis, China University of Mining & Technology]."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1016\/j.tust.2017.11.007","article-title":"An innovative support technology employing a concrete-filled steel tubular structure for a 1000-m-deep roadway in a high in situ stress field","volume":"73","author":"Huang","year":"2018","journal-title":"Tunn. Undergr. Space Technol."},{"key":"ref_12","first-page":"537","article-title":"Early strength concrete experiment and applied research of early strength concrete-filled steel tubular supports in extremely soft rock roadways","volume":"32","author":"Gao","year":"2015","journal-title":"J. Min. Saf. Eng."},{"key":"ref_13","first-page":"285","article-title":"Study on combined support technology of bolt-mesh-shotcrete and concrete filled steel tubular supports for soft rock roadway in Yangzhuang mine","volume":"32","author":"Li","year":"2015","journal-title":"J. Min. Saf. Eng."},{"key":"ref_14","first-page":"7","article-title":"Steel tube concrete support applied to dynamic pressure roadway in kilometers deep mine","volume":"43","author":"Gao","year":"2015","journal-title":"Coal Sci. Technol."},{"key":"ref_15","first-page":"178","article-title":"Mechanical property research and failure characteristics of U-type confined concrete arch in deep roadway","volume":"33","author":"Li","year":"2016","journal-title":"Eng. Mech."},{"key":"ref_16","first-page":"1","article-title":"Experimental study on short columns under axial load of U-type confined concrete arch centering and its application in mine","volume":"31","author":"Li","year":"2014","journal-title":"J. Min. Saf. Eng."},{"key":"ref_17","first-page":"2250","article-title":"Field test study on mechanical properties of U-type confined concrete arch centering and support system in deep roadway","volume":"46","author":"Wang","year":"2015","journal-title":"J. Cent. South Univ. Sci. Technol."},{"key":"ref_18","unstructured":"JTG\/T D70-2010 (2010). Guidelines for Design of Highway Tunnel, China Communications Press."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1269","DOI":"10.1002\/nme.1620190902","article-title":"An arc-length method including line searches and accelerations","volume":"19","author":"Crisfield","year":"1983","journal-title":"Int. J. Numer. Methods Eng."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1016\/0020-7683(89)90050-4","article-title":"A plastic-damage model for concrete","volume":"25","author":"Lubliner","year":"1989","journal-title":"Int. J. Solids Struct."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"892","DOI":"10.1061\/(ASCE)0733-9399(1998)124:8(892)","article-title":"Plastic-damage model for cyclic loading of concrete structures","volume":"124","author":"Lee","year":"1998","journal-title":"J. Eng. Mech."},{"key":"ref_22","unstructured":"GB 50010-2010 (2010). Code for Design of Concrete Structures, China Architecture & Building Press."},{"key":"ref_23","first-page":"167","article-title":"Parameters calibration and verification of concrete damage plasticity model of ABAQUS","volume":"44","author":"Liu","year":"2014","journal-title":"Ind. Constr."},{"key":"ref_24","unstructured":"Li, X.B. (2012). Steel Tube Confined Concrete Strength and the Roadway Compression Ring Enhanced Support Theory. [Ph.D. Thesis, China University of Mining & Technology]."},{"key":"ref_25","unstructured":"GB 50017-2017 (2017). Standard for Design of Steel Structures, China Architecture & Building Press."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/12\/8\/1368\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:02:13Z","timestamp":1760176933000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/12\/8\/1368"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,8,17]]},"references-count":25,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2020,8]]}},"alternative-id":["sym12081368"],"URL":"https:\/\/doi.org\/10.3390\/sym12081368","relation":{},"ISSN":["2073-8994"],"issn-type":[{"value":"2073-8994","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,8,17]]}}}