A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Study on Temperature Variation Performance of Steel-UHPC Composite Bridge Deck Pavement
Due to the large difference in material properties between steel panels and UHPC, the contraction and deformation of the two under temperature change can affect the adhesion of the interlayer contact, while the repeated action of vehicle loads can accelerate the destruction of the interlayer state. However, there are few applications of UHPC paving materials, and research in this area is still insufficient. The only research on the temperature change performance of UHPC is complicated and difficult to calculate. Based on this, this paper conducts a field test on a UHPC deck pavement of a bridge by installing temperature and strain sensors in three selected sections A, B and C of the pavement layer. The data was monitored to verify the effect of temperature loading on the mechanical properties of the UHPC and the overall adhesion of the UHPC pavement to the steel bridge deck. The test results show that: (1) the strains in the upper and lower layers of UHPC under temperature loading are in accordance with the principle of flat section assumptions, taking section C as an example: when the minimum temperature reaches −22 °C, the strains in the upper and lower layers of UHPC reach a maximum value of −270 and +270 respectively; when the maximum temperature reaches 13 °C, the strains in the upper and lower layers of UHPC reach a minimum value of −75 and +75 respectively. The mechanical properties of UHPC are significantly better than those of ordinary concrete and high-strength concrete, but the effect of temperature on the strains in the UHPC layers and steel bridge panels is more obvious, and a decrease in temperature leads to an increase in strains. Although changes in temperature do not cause strength loss to UHPC, it is important to pay attention to the damage caused by temperature loads and to maintain UHPC properly during the construction and operation phases.
Experimental Study on Temperature Variation Performance of Steel-UHPC Composite Bridge Deck Pavement
Due to the large difference in material properties between steel panels and UHPC, the contraction and deformation of the two under temperature change can affect the adhesion of the interlayer contact, while the repeated action of vehicle loads can accelerate the destruction of the interlayer state. However, there are few applications of UHPC paving materials, and research in this area is still insufficient. The only research on the temperature change performance of UHPC is complicated and difficult to calculate. Based on this, this paper conducts a field test on a UHPC deck pavement of a bridge by installing temperature and strain sensors in three selected sections A, B and C of the pavement layer. The data was monitored to verify the effect of temperature loading on the mechanical properties of the UHPC and the overall adhesion of the UHPC pavement to the steel bridge deck. The test results show that: (1) the strains in the upper and lower layers of UHPC under temperature loading are in accordance with the principle of flat section assumptions, taking section C as an example: when the minimum temperature reaches −22 °C, the strains in the upper and lower layers of UHPC reach a maximum value of −270 and +270 respectively; when the maximum temperature reaches 13 °C, the strains in the upper and lower layers of UHPC reach a minimum value of −75 and +75 respectively. The mechanical properties of UHPC are significantly better than those of ordinary concrete and high-strength concrete, but the effect of temperature on the strains in the UHPC layers and steel bridge panels is more obvious, and a decrease in temperature leads to an increase in strains. Although changes in temperature do not cause strength loss to UHPC, it is important to pay attention to the damage caused by temperature loads and to maintain UHPC properly during the construction and operation phases.
Experimental Study on Temperature Variation Performance of Steel-UHPC Composite Bridge Deck Pavement
Mechan. Machine Science
Carbone, Giuseppe (editor) / Laribi, Med Amine (editor) / Jiang, Zhiyu (editor) / Zhang, Ziyi (author) / Qin, Lipeng (author) / Liu, Yimei (author)
International Symposium on Automation, Mechanical and Design Engineering ; 2022 ; Beijing, China
2023-10-04
18 pages
Article/Chapter (Book)
Electronic Resource
English
Experimental investigation on UHPC shrinkage of full-scale steel-UHPC composite bridge deck
| DOAJ | 2023
| European Patent Office | 2021
UHPC performance test device and test method suitable for steel bridge deck pavement
| European Patent Office | 2021