Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research

An anchorage device is an integral part of the prestressed Glulam beams. Therefore, its rationality and practicability have significant effects on the mechanical performance of the prestressed beams. To investigate the impact of the anchorage devices on the bearing capacity and stiffness of the pres...

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Autores principales:	Mingfei Li, Mingtao Wu, Nan Guo, Lidan Mei, Yan Zhao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	anchorage device prestressed Glulam beam finite element method stiffness bearing capacity Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/1b4381a67cd74489bc6c29938430d85e
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spelling	oai:doaj.org-article:1b4381a67cd74489bc6c29938430d85e2021-11-11T18:04:10ZAnalysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research10.3390/ma142164941996-1944https://doaj.org/article/1b4381a67cd74489bc6c29938430d85e2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6494https://doaj.org/toc/1996-1944An anchorage device is an integral part of the prestressed Glulam beams. Therefore, its rationality and practicability have significant effects on the mechanical performance of the prestressed beams. To investigate the impact of the anchorage devices on the bearing capacity and stiffness of the prestressed beams, this paper compared and analyzed four kinds of anchors in detail through the finite element software. The results showed that when the initial mid-span deflection was 5 mm, 10 mm, and 15 mm, the bearing capacity of prestressed beams with four anchorage devices was 80.37–177.24%, 93.56–182.51%, and 95.62–194.60% higher than that of ordinary Glulam beam, respectively. When the initial mid-span top prestresses were 1 MPa, 1.5 MPa, and 2 MPa, the bearing capacity of prestressed beams with four anchorage devices was 101.71–172.57%, 105.85–175.88%, and 109.64–180.87% higher than that of ordinary Glulam beam, respectively. In addition, based on the simulation results, the prestressed beam with the external anchorage had the highest bearing capacity and stiffness. The deformation capacity of the beam with boot anchorage was the largest. The stress distribution of the beam installed under beam anchorage was the most uniform, and the beam with slotted anchorage was easy to cause stress concentration at the notch. Finally, based on the outstanding performance of the external anchorage, it was selected to carry out one experiment, and the experimental result showed that the simulation could predict the damage model and load–deflection relationship of the prestressed beams well.Mingfei LiMingtao WuNan GuoLidan MeiYan ZhaoMDPI AGarticleanchorage deviceprestressed Glulam beamfinite element methodstiffnessbearing capacityTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6494, p 6494 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anchorage device prestressed Glulam beam finite element method stiffness bearing capacity Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	anchorage device prestressed Glulam beam finite element method stiffness bearing capacity Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Mingfei Li Mingtao Wu Nan Guo Lidan Mei Yan Zhao Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research
description	An anchorage device is an integral part of the prestressed Glulam beams. Therefore, its rationality and practicability have significant effects on the mechanical performance of the prestressed beams. To investigate the impact of the anchorage devices on the bearing capacity and stiffness of the prestressed beams, this paper compared and analyzed four kinds of anchors in detail through the finite element software. The results showed that when the initial mid-span deflection was 5 mm, 10 mm, and 15 mm, the bearing capacity of prestressed beams with four anchorage devices was 80.37–177.24%, 93.56–182.51%, and 95.62–194.60% higher than that of ordinary Glulam beam, respectively. When the initial mid-span top prestresses were 1 MPa, 1.5 MPa, and 2 MPa, the bearing capacity of prestressed beams with four anchorage devices was 101.71–172.57%, 105.85–175.88%, and 109.64–180.87% higher than that of ordinary Glulam beam, respectively. In addition, based on the simulation results, the prestressed beam with the external anchorage had the highest bearing capacity and stiffness. The deformation capacity of the beam with boot anchorage was the largest. The stress distribution of the beam installed under beam anchorage was the most uniform, and the beam with slotted anchorage was easy to cause stress concentration at the notch. Finally, based on the outstanding performance of the external anchorage, it was selected to carry out one experiment, and the experimental result showed that the simulation could predict the damage model and load–deflection relationship of the prestressed beams well.
format	article
author	Mingfei Li Mingtao Wu Nan Guo Lidan Mei Yan Zhao
author_facet	Mingfei Li Mingtao Wu Nan Guo Lidan Mei Yan Zhao
author_sort	Mingfei Li
title	Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research
title_short	Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research
title_full	Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research
title_fullStr	Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research
title_full_unstemmed	Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research
title_sort	analysis of four types of anchorage devices for prestressed glulam beam and experimental research
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1b4381a67cd74489bc6c29938430d85e
work_keys_str_mv	AT mingfeili analysisoffourtypesofanchoragedevicesforprestressedglulambeamandexperimentalresearch AT mingtaowu analysisoffourtypesofanchoragedevicesforprestressedglulambeamandexperimentalresearch AT nanguo analysisoffourtypesofanchoragedevicesforprestressedglulambeamandexperimentalresearch AT lidanmei analysisoffourtypesofanchoragedevicesforprestressedglulambeamandexperimentalresearch AT yanzhao analysisoffourtypesofanchoragedevicesforprestressedglulambeamandexperimentalresearch
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Analysis of Four Types of Anchorage Devices for Prestressed Glulam Beam and Experimental Research

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