Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation
For the Honghe Bridge project located in Yunnan Province, Southwest China, a steel/ultrahigh-performance concrete (UHPC) composite deck is used in the suspension bridge with a 700 m main span, and the steel stud connectors are used in the 50 mm–thick UHPC layer. To investigate the shrinkage behavior...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-05-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/15/10/3628 |
| _version_ | 1797498207931990016 |
|---|---|
| author | Zhiguo Ma Yue Li Zhensheng Cao Shaoqiang Zhang Shengjun Hou Jilin Liu Xin Ruan |
| author_facet | Zhiguo Ma Yue Li Zhensheng Cao Shaoqiang Zhang Shengjun Hou Jilin Liu Xin Ruan |
| author_sort | Zhiguo Ma |
| collection | DOAJ |
| description | For the Honghe Bridge project located in Yunnan Province, Southwest China, a steel/ultrahigh-performance concrete (UHPC) composite deck is used in the suspension bridge with a 700 m main span, and the steel stud connectors are used in the 50 mm–thick UHPC layer. To investigate the shrinkage behavior of UHPC and the relevant influence, the in situ time-dependent strain is measured continuously, and within the 20-day curing time, the material behavior is summarized based on test results. This paper proposes a prediction model for UHPC shrinkage which is refined from the widely used B3 model for normal concrete material, and the parameter values are modified and optimized by experimental comparison. Combining the numerical model and the finite element analysis model of the composite deck, the detailed mechanical state in structural parts is studied. For the practical construction, the simulation results indicate that the small thickness of UHPC above the stud and weak bond strength can influence the eventual structural performance greatly. In the discussion of stress distribution at different locations of the deck, the potential crack on the edge and the corner of the UHPC–steel interface and the mechanical damage on the stud connector around are also indicated. |
| first_indexed | 2024-03-10T03:30:09Z |
| format | Article |
| id | doaj.art-ab4f749f33b148aba37aafdcba66413b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:30:09Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ab4f749f33b148aba37aafdcba66413b2023-11-23T11:58:15ZengMDPI AGMaterials1996-19442022-05-011510362810.3390/ma15103628Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical SimulationZhiguo Ma0Yue Li1Zhensheng Cao2Shaoqiang Zhang3Shengjun Hou4Jilin Liu5Xin Ruan6China Power Construction Group Co., Ltd., Beijing 100037, ChinaDepartment of Bridge Engineering, Tongji University, Shanghai 200092, ChinaChina Power Construction Group Co., Ltd., Beijing 100037, ChinaChina Power Construction Group Co., Ltd., Beijing 100037, ChinaChina Power Construction Group Co., Ltd., Beijing 100037, ChinaDepartment of Bridge Engineering, Tongji University, Shanghai 200092, ChinaDepartment of Bridge Engineering, Tongji University, Shanghai 200092, ChinaFor the Honghe Bridge project located in Yunnan Province, Southwest China, a steel/ultrahigh-performance concrete (UHPC) composite deck is used in the suspension bridge with a 700 m main span, and the steel stud connectors are used in the 50 mm–thick UHPC layer. To investigate the shrinkage behavior of UHPC and the relevant influence, the in situ time-dependent strain is measured continuously, and within the 20-day curing time, the material behavior is summarized based on test results. This paper proposes a prediction model for UHPC shrinkage which is refined from the widely used B3 model for normal concrete material, and the parameter values are modified and optimized by experimental comparison. Combining the numerical model and the finite element analysis model of the composite deck, the detailed mechanical state in structural parts is studied. For the practical construction, the simulation results indicate that the small thickness of UHPC above the stud and weak bond strength can influence the eventual structural performance greatly. In the discussion of stress distribution at different locations of the deck, the potential crack on the edge and the corner of the UHPC–steel interface and the mechanical damage on the stud connector around are also indicated.https://www.mdpi.com/1996-1944/15/10/3628early age shrinkageultrahigh-performance concretecomposite deckin situ testnumerical simulation |
| spellingShingle | Zhiguo Ma Yue Li Zhensheng Cao Shaoqiang Zhang Shengjun Hou Jilin Liu Xin Ruan Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation Materials early age shrinkage ultrahigh-performance concrete composite deck in situ test numerical simulation |
| title | Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation |
| title_full | Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation |
| title_fullStr | Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation |
| title_full_unstemmed | Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation |
| title_short | Early Age Shrinkage and Mechanical Effect of Ultra-High-Performance Concrete Composite Deck: A Case Study with In Situ Test and Numerical Simulation |
| title_sort | early age shrinkage and mechanical effect of ultra high performance concrete composite deck a case study with in situ test and numerical simulation |
| topic | early age shrinkage ultrahigh-performance concrete composite deck in situ test numerical simulation |
| url | https://www.mdpi.com/1996-1944/15/10/3628 |
| work_keys_str_mv | AT zhiguoma earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation AT yueli earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation AT zhenshengcao earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation AT shaoqiangzhang earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation AT shengjunhou earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation AT jilinliu earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation AT xinruan earlyageshrinkageandmechanicaleffectofultrahighperformanceconcretecompositedeckacasestudywithinsitutestandnumericalsimulation |