Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction

Guangpan Zhou, Aiqun Li, Jianhui Li, Maojun Duan, Zhiyuan Xia, Li Zhu, Billie F. Spencer, Bin Wang

Research output: Contribution to journalArticle

Abstract

This work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking the Hunan Road Bridge as the background project, which is the widest concrete self-anchored suspension bridge in China currently. Then, the ANSYS beam-type finite element model and field monitoring data were integrated to investigate the cable system evolutions during system transformation. Finally, the global refined finite element model was established using solid element to consider the shear lag effects in extra-wide girder. The measured data show that the cable displacements in tensioned domains were characterized by weak coherence and contraflexure characteristics. The longitudinal and transverse stresses of extra-wide girder distributed unevenly along transverse direction. The maximum shear lag coefficients of girder at completion state reached to 1.3. Moreover, small transverse compressive stress, or even the transverse tensile stress reaching to 1.80 MPa, appeared in the top plate segments. The measures including the arrangement optimization of transverse prestressed tendons and monitoring point redistribution were given. The research can provide references for the structural designing and safety control of the similar bridges.

Original languageEnglish (US)
JournalInternational Journal of Distributed Sensor Networks
Volume15
Issue number12
DOIs
StatePublished - Jan 1 2019

Fingerprint

Suspension bridges
Mechanics
Cables
Concretes
Monitoring
Tendons
Compressive stress
Tensile stress

Keywords

  • Self-anchored suspension bridge
  • concrete shrinkage and creep
  • extra-wide girder
  • safety evaluation
  • shear lag
  • spatial behavior
  • system transformation

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Networks and Communications

Cite this

Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction. / Zhou, Guangpan; Li, Aiqun; Li, Jianhui; Duan, Maojun; Xia, Zhiyuan; Zhu, Li; Spencer, Billie F.; Wang, Bin.

In: International Journal of Distributed Sensor Networks, Vol. 15, No. 12, 01.01.2019.

Research output: Contribution to journalArticle

@article{31a3c59787054e6a8204e3fa26d34731,
title = "Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction",
abstract = "This work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking the Hunan Road Bridge as the background project, which is the widest concrete self-anchored suspension bridge in China currently. Then, the ANSYS beam-type finite element model and field monitoring data were integrated to investigate the cable system evolutions during system transformation. Finally, the global refined finite element model was established using solid element to consider the shear lag effects in extra-wide girder. The measured data show that the cable displacements in tensioned domains were characterized by weak coherence and contraflexure characteristics. The longitudinal and transverse stresses of extra-wide girder distributed unevenly along transverse direction. The maximum shear lag coefficients of girder at completion state reached to 1.3. Moreover, small transverse compressive stress, or even the transverse tensile stress reaching to 1.80 MPa, appeared in the top plate segments. The measures including the arrangement optimization of transverse prestressed tendons and monitoring point redistribution were given. The research can provide references for the structural designing and safety control of the similar bridges.",
keywords = "Self-anchored suspension bridge, concrete shrinkage and creep, extra-wide girder, safety evaluation, shear lag, spatial behavior, system transformation",
author = "Guangpan Zhou and Aiqun Li and Jianhui Li and Maojun Duan and Zhiyuan Xia and Li Zhu and Spencer, {Billie F.} and Bin Wang",
year = "2019",
month = "1",
day = "1",
doi = "10.1177/1550147719891561",
language = "English (US)",
volume = "15",
journal = "International Journal of Distributed Sensor Networks",
issn = "1550-1329",
publisher = "Hindawi Publishing Corporation",
number = "12",

}

TY - JOUR

T1 - Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction

AU - Zhou, Guangpan

AU - Li, Aiqun

AU - Li, Jianhui

AU - Duan, Maojun

AU - Xia, Zhiyuan

AU - Zhu, Li

AU - Spencer, Billie F.

AU - Wang, Bin

PY - 2019/1/1

Y1 - 2019/1/1

N2 - This work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking the Hunan Road Bridge as the background project, which is the widest concrete self-anchored suspension bridge in China currently. Then, the ANSYS beam-type finite element model and field monitoring data were integrated to investigate the cable system evolutions during system transformation. Finally, the global refined finite element model was established using solid element to consider the shear lag effects in extra-wide girder. The measured data show that the cable displacements in tensioned domains were characterized by weak coherence and contraflexure characteristics. The longitudinal and transverse stresses of extra-wide girder distributed unevenly along transverse direction. The maximum shear lag coefficients of girder at completion state reached to 1.3. Moreover, small transverse compressive stress, or even the transverse tensile stress reaching to 1.80 MPa, appeared in the top plate segments. The measures including the arrangement optimization of transverse prestressed tendons and monitoring point redistribution were given. The research can provide references for the structural designing and safety control of the similar bridges.

AB - This work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking the Hunan Road Bridge as the background project, which is the widest concrete self-anchored suspension bridge in China currently. Then, the ANSYS beam-type finite element model and field monitoring data were integrated to investigate the cable system evolutions during system transformation. Finally, the global refined finite element model was established using solid element to consider the shear lag effects in extra-wide girder. The measured data show that the cable displacements in tensioned domains were characterized by weak coherence and contraflexure characteristics. The longitudinal and transverse stresses of extra-wide girder distributed unevenly along transverse direction. The maximum shear lag coefficients of girder at completion state reached to 1.3. Moreover, small transverse compressive stress, or even the transverse tensile stress reaching to 1.80 MPa, appeared in the top plate segments. The measures including the arrangement optimization of transverse prestressed tendons and monitoring point redistribution were given. The research can provide references for the structural designing and safety control of the similar bridges.

KW - Self-anchored suspension bridge

KW - concrete shrinkage and creep

KW - extra-wide girder

KW - safety evaluation

KW - shear lag

KW - spatial behavior

KW - system transformation

UR - http://www.scopus.com/inward/record.url?scp=85076117471&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076117471&partnerID=8YFLogxK

U2 - 10.1177/1550147719891561

DO - 10.1177/1550147719891561

M3 - Article

AN - SCOPUS:85076117471

VL - 15

JO - International Journal of Distributed Sensor Networks

JF - International Journal of Distributed Sensor Networks

SN - 1550-1329

IS - 12

ER -