Zhang, K; Li, D; Shen, X; Hou, W; Li, Y and Xue, X (2023) Research on strengthening stone arch bridge with CFRP rebars. International Journal of Building Pathology and Adaptation, 41(5), pp. 1014-1028. ISSN 23984708
Abstract
Purpose: This paper aims to describe carbon fiber reinforced plastics (CFRP) bars as a way to strengthen a 40-year-old stone arch bridge. To investigate effectiveness of the strengthening method, fielding-load tests were carried out before and after strengthening. Design/methodology/approach: High-strength CFRP bars with minor radius, high tensile strain and good corrosion resistance were used in this reinforcement. The construction process for strengthening with CFRP bars – including CFRP bars cutting, crack grouting, original structural surface treatment, implant drilling, CFRP bars installation and pouring mortar – was described. Ultimate bearing capacity of the bridge after strengthening was discussed. Findings: The results of concrete stress and deflection show that the strength and stiffness of the strengthened bridge are improved. The strengthened way with CFRP bars is feasible and effective. Originality/value: This paper describes CFRP bars as a way to strengthen a 40-year-old stone arch bridge.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | cfrp bars; field application; load test; stone arch bridge; strengthening |
| Index terms: | corrosion, strengthening, drilling, methodology, construction process, plastic, carbon fibre, mortars (material), grouting, rebar, effectiveness, reinforcement |
| Subjects: | material degradation and durability, building materials, construction methods, materials science, building construction, research methods, performance management, structural engineering |
| Topics: | Quality Management, Site Management, Research Practice, Construction Materials, Engineering Principles, Construction Technology |
| Descriptive scope: | 3 PCT |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here