Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams

Jianqing Bu; Lingpei Meng; Zhenyu Wang; Yucheng Zhao; Jingchuan Xun

doi:doi:10.11648/j.ajce.20221003.14

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Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams

Jianqing Bu, Lingpei Meng, Zhenyu Wang, Yucheng Zhao, Jingchuan Xun

Published in American Journal of Civil Engineering (Volume 10, Issue 3)

Received: 13 June 2022 Published: 14 June 2022

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Abstract

At present, there are few application cases of segmental prefabricated concrete T-section beams in bridge structures, and the research on mechanical properties is still insufficient. The division of segments makes the beam body have multiple joints, and the longitudinal reinforcement cannot be arranged continuously, which results in the discontinuous local mechanical behavior of the beam body at the joint position. In this paper, 6 beams are selected, and the number of single key-joint at the joint and the shear-span ratio are used as independent variables for research. The finite element model was established by ABAQUS software to simulate the stress and deflection, and ultimate bearing capacity of the segmental precast concrete T-section joint beams under two load cases. The following conclusions can be obtained by the data processed, which can provide a reference for the optimal design of segmental prefabricated concrete T-section beams in engineering applications. The conclusions include: that the joint sections of B and C conform to the assumption of plane section. Under the two-shear-span ratio, the stress transfer of the integral beam is better than that of the segmental beam, and the single key-joint beam is superior to the double key-joints segmental beam. At the joint section, the stress transfer of the same type of beam is better with a shear-span ratio of 2.3 than with a shear-span ratio of 3.3. When the shear-to-span ratio is the same, the bending stiffness of the integral T-section beams is the largest among the three beams. The second is the single key-joint segment beam, and the last is the double key-joints segment beam. When the shear-to-span ratio is different, the deflection when the shear-span ratio is 3.3 is more significant than when the shear-span ratio is 2.3. In conclusion, the mechanical properties of the integral beam are better than those of the other two segmental beams, and the mechanical properties of the single key-joint segmental beam are relatively better than that of the double key-joints segmental beam.

Published in	American Journal of Civil Engineering (Volume 10, Issue 3)
DOI	10.11648/j.ajce.20221003.14
Page(s)	116-124
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Bridge Structure, Segment Prefabrication, Mechanical Properties, Epoxy-Joint, Key-Joint, Shear-Span Ratio

References

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[2]	JTG D60-2004, General Code for Design of Highway Bridges and Culverts [S].
[3]	CJJ/T 111-2006, Technical Specification for Span-By-Span Assembly of Precast Segments of Prestressed Concrete Bridges [S].
[4]	Liu Zhao, Wu Huanling, Chong Aixiu. Full-scale model Test of Segmental Prefabricated Box Girder of the Fourth Nanjing Yangtze River Bridge [J]. Bridge Construction, 2011 (03): 9-12+16.
[5]	Li Guoping, Shen Yin. Calculation Method of Ulti-mate Stress and Effective Height of External Prestr-essed Tendons [J]. Chinese Journal of Civil Engineering, 2007 (02): 47.
[6]	Li Guoping, Zhang Guoquan. Experimental Study on Bending Properties of External Prestressed Concrete Continuous Beams [J]. Chinese Journal of Civil Engineering, 2007, 40 (2): 53-57.
[7]	Li G., Zhang C., Niu C. Experimental Study on Shear Behavior in Negative Moment Regions of Segmental Externally Prestressed Concrete Continuous Beams [J]. Journal of Bridge Engineering, 2013, 18 (4): 328-338.
[8]	Yuan A., Dai H., Sun D. Behaviors of Segmental Concrete Box Beams with Internal Tendons and External Tendons under Bending [J]. Engineering Structures, 2013, 48: 623-634.
[9]	Yuan A., He Y., Dai. H. Experimental Study of Precast Segmental Bridge Box Girders with Ext Eternal Unbonded and Internal Bonded Posttensioning under Monotonic Vertical Loading [J]. Journal of Bridge Engineering, 2015, 20 (4): 04014075.
[10]	Jiang H, Cao Q, Liu A, et al. Flexural Behavior of Precast Concrete Segmental Beams with Hybrid Tendons and Dry Joints [J]. Construction & Building Materials, 2016, 110 (May 1): 1-7.
[11]	Yang Xiong, et al. Posttensioning of Segmental Bridges Using Carbon-Fiber-Composite Cables (vol 60, 50, 2015) [J]. P ci Journal, 2015.
[12]	Le T. D., Pham T. M., Hao H. Flexural Be Savior of Precast Segmental Concrete Beams Internally Prestressed with Unbonded CFRP Tendons under Four-Point Loading [J]. Engineering Structures, 2018, 168: 371-383.
[13]	Li G., Yang D., Lei Y. Combined Shear and Bending Behavior of Joints in Precast Concrete Segmental Beams with External Tendons [J]. Journal of Bridge Engineering, 2013, 18 (10): 1042-1052.
[14]	Jiang H., Li Y., Liu A. Shear Behavior of Precast Concrete Segmental Beams with External Tendons [J]. Journal of Bridge Engineering, 2018, 23 (8): 04018049.
[15]	Gao Mingchang, Yang Shaojun, Zhou Guangzhong. Design Practice and Prospect of Simply-Supported Box Girder for Railway Glued-Jointed Segment Assembly [J]. China Railway, 2018 (07): 54-59.
[16]	Yuan Aimin, Wu Wenxiu, Sun Dasong. Bending Performance Test of Prefabricated Box Girders with Mixed Beams in Vitro and in Vivo [J]. Journal of Chang'an University (Natural Science Edition), 2015, 35 (05): 73-81-103.
[17]	Yuan Aimin, He Yu, Dai Hang. Mechanical Performance Test of Segmental Precast Box Girder under Different Loading Methods and Distribution Ratios [J]. Journal of Chang'an University (Natural Science Edition), 2016, 36 (01): 58-68.
[18]	Jiang Haibo, Li Yuhong, Xiao Jie. Shear Performance Test of External Prestressed Concrete Simply Supported Beams with Prefabricated Segmental Dry Joints [J]. Journal of China Highway, 2018, 31 (12): 188-195.

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APA Style

Jianqing Bu, Lingpei Meng, Zhenyu Wang, Yucheng Zhao, Jingchuan Xun. (2022). Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams. American Journal of Civil Engineering, 10(3), 116-124. https://doi.org/10.11648/j.ajce.20221003.14

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ACS Style

Jianqing Bu; Lingpei Meng; Zhenyu Wang; Yucheng Zhao; Jingchuan Xun. Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams. Am. J. Civ. Eng. 2022, 10(3), 116-124. doi: 10.11648/j.ajce.20221003.14

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AMA Style

Jianqing Bu, Lingpei Meng, Zhenyu Wang, Yucheng Zhao, Jingchuan Xun. Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams. Am J Civ Eng. 2022;10(3):116-124. doi: 10.11648/j.ajce.20221003.14

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@article{10.11648/j.ajce.20221003.14,
  author = {Jianqing Bu and Lingpei Meng and Zhenyu Wang and Yucheng Zhao and Jingchuan Xun},
  title = {Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams},
  journal = {American Journal of Civil Engineering},
  volume = {10},
  number = {3},
  pages = {116-124},
  doi = {10.11648/j.ajce.20221003.14},
  url = {https://doi.org/10.11648/j.ajce.20221003.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20221003.14},
  abstract = {At present, there are few application cases of segmental prefabricated concrete T-section beams in bridge structures, and the research on mechanical properties is still insufficient. The division of segments makes the beam body have multiple joints, and the longitudinal reinforcement cannot be arranged continuously, which results in the discontinuous local mechanical behavior of the beam body at the joint position. In this paper, 6 beams are selected, and the number of single key-joint at the joint and the shear-span ratio are used as independent variables for research. The finite element model was established by ABAQUS software to simulate the stress and deflection, and ultimate bearing capacity of the segmental precast concrete T-section joint beams under two load cases. The following conclusions can be obtained by the data processed, which can provide a reference for the optimal design of segmental prefabricated concrete T-section beams in engineering applications. The conclusions include: that the joint sections of B and C conform to the assumption of plane section. Under the two-shear-span ratio, the stress transfer of the integral beam is better than that of the segmental beam, and the single key-joint beam is superior to the double key-joints segmental beam. At the joint section, the stress transfer of the same type of beam is better with a shear-span ratio of 2.3 than with a shear-span ratio of 3.3. When the shear-to-span ratio is the same, the bending stiffness of the integral T-section beams is the largest among the three beams. The second is the single key-joint segment beam, and the last is the double key-joints segment beam. When the shear-to-span ratio is different, the deflection when the shear-span ratio is 3.3 is more significant than when the shear-span ratio is 2.3. In conclusion, the mechanical properties of the integral beam are better than those of the other two segmental beams, and the mechanical properties of the single key-joint segmental beam are relatively better than that of the double key-joints segmental beam.},
 year = {2022}
}

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TY  - JOUR
T1  - Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams
AU  - Jianqing Bu
AU  - Lingpei Meng
AU  - Zhenyu Wang
AU  - Yucheng Zhao
AU  - Jingchuan Xun
Y1  - 2022/06/14
PY  - 2022
N1  - https://doi.org/10.11648/j.ajce.20221003.14
DO  - 10.11648/j.ajce.20221003.14
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 116
EP  - 124
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20221003.14
AB  - At present, there are few application cases of segmental prefabricated concrete T-section beams in bridge structures, and the research on mechanical properties is still insufficient. The division of segments makes the beam body have multiple joints, and the longitudinal reinforcement cannot be arranged continuously, which results in the discontinuous local mechanical behavior of the beam body at the joint position. In this paper, 6 beams are selected, and the number of single key-joint at the joint and the shear-span ratio are used as independent variables for research. The finite element model was established by ABAQUS software to simulate the stress and deflection, and ultimate bearing capacity of the segmental precast concrete T-section joint beams under two load cases. The following conclusions can be obtained by the data processed, which can provide a reference for the optimal design of segmental prefabricated concrete T-section beams in engineering applications. The conclusions include: that the joint sections of B and C conform to the assumption of plane section. Under the two-shear-span ratio, the stress transfer of the integral beam is better than that of the segmental beam, and the single key-joint beam is superior to the double key-joints segmental beam. At the joint section, the stress transfer of the same type of beam is better with a shear-span ratio of 2.3 than with a shear-span ratio of 3.3. When the shear-to-span ratio is the same, the bending stiffness of the integral T-section beams is the largest among the three beams. The second is the single key-joint segment beam, and the last is the double key-joints segment beam. When the shear-to-span ratio is different, the deflection when the shear-span ratio is 3.3 is more significant than when the shear-span ratio is 2.3. In conclusion, the mechanical properties of the integral beam are better than those of the other two segmental beams, and the mechanical properties of the single key-joint segmental beam are relatively better than that of the double key-joints segmental beam.
VL  - 10
IS  - 3
ER  -

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Author Information

Jianqing Bu

School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang, China
Lingpei Meng

School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
Zhenyu Wang

School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
Yucheng Zhao

School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
Jingchuan Xun

China Construction Road and Bridge Group Co., Ltd, Shijiazhuang, China

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Plain Text BibTeX RIS

APA Style

Jianqing Bu, Lingpei Meng, Zhenyu Wang, Yucheng Zhao, Jingchuan Xun. (2022). Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams. American Journal of Civil Engineering, 10(3), 116-124. https://doi.org/10.11648/j.ajce.20221003.14

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ACS Style

Jianqing Bu; Lingpei Meng; Zhenyu Wang; Yucheng Zhao; Jingchuan Xun. Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams. Am. J. Civ. Eng. 2022, 10(3), 116-124. doi: 10.11648/j.ajce.20221003.14

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AMA Style

Jianqing Bu, Lingpei Meng, Zhenyu Wang, Yucheng Zhao, Jingchuan Xun. Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams. Am J Civ Eng. 2022;10(3):116-124. doi: 10.11648/j.ajce.20221003.14

Copy | Download

@article{10.11648/j.ajce.20221003.14,
  author = {Jianqing Bu and Lingpei Meng and Zhenyu Wang and Yucheng Zhao and Jingchuan Xun},
  title = {Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams},
  journal = {American Journal of Civil Engineering},
  volume = {10},
  number = {3},
  pages = {116-124},
  doi = {10.11648/j.ajce.20221003.14},
  url = {https://doi.org/10.11648/j.ajce.20221003.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20221003.14},
  abstract = {At present, there are few application cases of segmental prefabricated concrete T-section beams in bridge structures, and the research on mechanical properties is still insufficient. The division of segments makes the beam body have multiple joints, and the longitudinal reinforcement cannot be arranged continuously, which results in the discontinuous local mechanical behavior of the beam body at the joint position. In this paper, 6 beams are selected, and the number of single key-joint at the joint and the shear-span ratio are used as independent variables for research. The finite element model was established by ABAQUS software to simulate the stress and deflection, and ultimate bearing capacity of the segmental precast concrete T-section joint beams under two load cases. The following conclusions can be obtained by the data processed, which can provide a reference for the optimal design of segmental prefabricated concrete T-section beams in engineering applications. The conclusions include: that the joint sections of B and C conform to the assumption of plane section. Under the two-shear-span ratio, the stress transfer of the integral beam is better than that of the segmental beam, and the single key-joint beam is superior to the double key-joints segmental beam. At the joint section, the stress transfer of the same type of beam is better with a shear-span ratio of 2.3 than with a shear-span ratio of 3.3. When the shear-to-span ratio is the same, the bending stiffness of the integral T-section beams is the largest among the three beams. The second is the single key-joint segment beam, and the last is the double key-joints segment beam. When the shear-to-span ratio is different, the deflection when the shear-span ratio is 3.3 is more significant than when the shear-span ratio is 2.3. In conclusion, the mechanical properties of the integral beam are better than those of the other two segmental beams, and the mechanical properties of the single key-joint segmental beam are relatively better than that of the double key-joints segmental beam.},
 year = {2022}
}

Copy | Download

TY  - JOUR
T1  - Numerical Simulation on Mechanical Properties of Segmental Prefabricated Concrete T-section Beams
AU  - Jianqing Bu
AU  - Lingpei Meng
AU  - Zhenyu Wang
AU  - Yucheng Zhao
AU  - Jingchuan Xun
Y1  - 2022/06/14
PY  - 2022
N1  - https://doi.org/10.11648/j.ajce.20221003.14
DO  - 10.11648/j.ajce.20221003.14
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 116
EP  - 124
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20221003.14
AB  - At present, there are few application cases of segmental prefabricated concrete T-section beams in bridge structures, and the research on mechanical properties is still insufficient. The division of segments makes the beam body have multiple joints, and the longitudinal reinforcement cannot be arranged continuously, which results in the discontinuous local mechanical behavior of the beam body at the joint position. In this paper, 6 beams are selected, and the number of single key-joint at the joint and the shear-span ratio are used as independent variables for research. The finite element model was established by ABAQUS software to simulate the stress and deflection, and ultimate bearing capacity of the segmental precast concrete T-section joint beams under two load cases. The following conclusions can be obtained by the data processed, which can provide a reference for the optimal design of segmental prefabricated concrete T-section beams in engineering applications. The conclusions include: that the joint sections of B and C conform to the assumption of plane section. Under the two-shear-span ratio, the stress transfer of the integral beam is better than that of the segmental beam, and the single key-joint beam is superior to the double key-joints segmental beam. At the joint section, the stress transfer of the same type of beam is better with a shear-span ratio of 2.3 than with a shear-span ratio of 3.3. When the shear-to-span ratio is the same, the bending stiffness of the integral T-section beams is the largest among the three beams. The second is the single key-joint segment beam, and the last is the double key-joints segment beam. When the shear-to-span ratio is different, the deflection when the shear-span ratio is 3.3 is more significant than when the shear-span ratio is 2.3. In conclusion, the mechanical properties of the integral beam are better than those of the other two segmental beams, and the mechanical properties of the single key-joint segmental beam are relatively better than that of the double key-joints segmental beam.
VL  - 10
IS  - 3
ER  -

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