Analysis of Mechanical Characteristic and Key Technique of Steel Tube Slab Structure

doi:10.12068/j.issn.1005-3026.2019.06.024

Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (6): 891-895.DOI: 10.12068/j.issn.1005-3026.2019.06.024

• Resources & Civil Engineering • Previous Articles Next Articles

Analysis of Mechanical Characteristic and Key Technique of Steel Tube Slab Structure

JIA Peng-jiao¹， ZHAO Wen¹， GUAN Yong-ping²， LI Wei-wei¹

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. China Railway Design Corporation， Tianjin 300142， China.

Received:2018-08-13 Revised:2018-08-13 Online:2019-06-15 Published:2019-06-14
Contact: LI Wei-wei
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Abstract

Abstract: Steel tube slab(STS)method is addopted to construct the ultra-shallow-buried subway station of the Aoti Central station， line 9 in Shenyang. The longitudinal and lateral mechanical characteristics of STS structure were investigated， and the interaction mechanism was elaborated; then， the calculation theory of bearing flexural capacity and shear capacity were discussed， and the relative formulas were presented. According to the construction condition， the internal force of STS structure during the construction was calculated. Compared with the left pilot tunnel， the positive mid-span bending moment of the supporting structure increases by 8% when the construction of right pilot tunnel is completed， and the maximum negative bending moment decreases by 17.8%. The maximum deformation of the longitudinal mid-span is 6.46mm. The results can provide some important references for the application and promotion of STS.

Key words: steel tube slab, shallow-buried, pile-beam-arch, mechanical pattern, elastic foundation beam

CLC Number:

U449.5

JIA Peng-jiao， ZHAO Wen， GUAN Yong-ping， LI Wei-wei. Analysis of Mechanical Characteristic and Key Technique of Steel Tube Slab Structure[J]. Journal of Northeastern University Natural Science, 2019, 40(6): 891-895.

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Analysis of Mechanical Characteristic and Key Technique of Steel Tube Slab Structure

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