Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle

In this paper, the whole life cycle (failure-reinforcement-failure) durability and related fatigue properties of prestressed hollow beam under carbonation erosion environment were studied. According to a 20 m hollow slab beam, the model of prestressed hollow beam was designed and made, and the durab...

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Main Authors: Yuanxun Zheng, Kuan Li, Mengen Ji, Ehsan Moshtagh
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2020/8816767
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author Yuanxun Zheng
Kuan Li
Mengen Ji
Ehsan Moshtagh
author_facet Yuanxun Zheng
Kuan Li
Mengen Ji
Ehsan Moshtagh
author_sort Yuanxun Zheng
collection DOAJ
description In this paper, the whole life cycle (failure-reinforcement-failure) durability and related fatigue properties of prestressed hollow beam under carbonation erosion environment were studied. According to a 20 m hollow slab beam, the model of prestressed hollow beam was designed and made, and the durability and fatigue tests for the whole life cycle of prestressed hollow beam were carried out. The results showed that the compressive strength and elastic modulus of the specimens increased by about 20% under the action of carbonization erosion. With the increase of fatigue loading cycles, the crack occurrence and development speed of carbonized erosion components were greater than those of healthy components, and the fatigue life decreased sharply from 3 million cycles to 50,000 cycles. Pasting carbon fiber and steel plate had better reinforcement effect on the damaged prestressed plate beam and could help improving the fatigue life of the reinforced component. Comparing the reinforcement of different strengthening methods, it is found that the steel-plate-reinforced components have better mechanical properties and antifatigue attenuation characteristics than the carbon-fiber-reinforced ones. The research results have important theoretical value for improving the durability of structure and prolonging its service life.
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institution Kabale University
issn 1687-8086
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language English
publishDate 2020-01-01
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series Advances in Civil Engineering
spelling doaj-art-cf95d544a5ee466798ae9afeb2d8d01f2025-02-03T01:28:22ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88167678816767Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life CycleYuanxun Zheng0Kuan Li1Mengen Ji2Ehsan Moshtagh3School of Water Conservancy Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, ChinaSchool of Water Conservancy Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, ChinaHenan Transport Investment Group Co. Ltd., Zhengzhou, Henan 450000, ChinaSchool of Civil Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, IranIn this paper, the whole life cycle (failure-reinforcement-failure) durability and related fatigue properties of prestressed hollow beam under carbonation erosion environment were studied. According to a 20 m hollow slab beam, the model of prestressed hollow beam was designed and made, and the durability and fatigue tests for the whole life cycle of prestressed hollow beam were carried out. The results showed that the compressive strength and elastic modulus of the specimens increased by about 20% under the action of carbonization erosion. With the increase of fatigue loading cycles, the crack occurrence and development speed of carbonized erosion components were greater than those of healthy components, and the fatigue life decreased sharply from 3 million cycles to 50,000 cycles. Pasting carbon fiber and steel plate had better reinforcement effect on the damaged prestressed plate beam and could help improving the fatigue life of the reinforced component. Comparing the reinforcement of different strengthening methods, it is found that the steel-plate-reinforced components have better mechanical properties and antifatigue attenuation characteristics than the carbon-fiber-reinforced ones. The research results have important theoretical value for improving the durability of structure and prolonging its service life.http://dx.doi.org/10.1155/2020/8816767
spellingShingle Yuanxun Zheng
Kuan Li
Mengen Ji
Ehsan Moshtagh
Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle
Advances in Civil Engineering
title Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle
title_full Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle
title_fullStr Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle
title_full_unstemmed Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle
title_short Study on Fatigue Characteristics of Carbonation Erosion Prestressed Hollow Slabs in Whole Life Cycle
title_sort study on fatigue characteristics of carbonation erosion prestressed hollow slabs in whole life cycle
url http://dx.doi.org/10.1155/2020/8816767
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AT mengenji studyonfatiguecharacteristicsofcarbonationerosionprestressedhollowslabsinwholelifecycle
AT ehsanmoshtagh studyonfatiguecharacteristicsofcarbonationerosionprestressedhollowslabsinwholelifecycle