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Load Test and Numerical Analysis on Construction Materials
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Load Test and Numerical Analysis on Construction Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: closed (20 June 2022) | Viewed by 9598

Special Issue Editor

Prof. Dr. Daehyeon Kim

E-Mail Website
Guest Editor
Department of Civil Engineering, Chosun University, Gwangju, Republic of Korea
Interests: soil improvement; foundation engineering; dynamic behaviour of soil
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Construction materials are very important for maintaining structures and buildings safely. Significant advancement in the area of construction materials has taken place recently. This Special Issue of Materials is on “Load Test and Numerical Analysis on Construction Materials”. We invite you to submit high-quality research or review papers to this Special Issue, with an emphasis on innovative, new and emerging materials, as well as traditional construction materials. Some areas of interests for this Special Issue include, but are not limited to, soil, cement, concrete, steel, grouting materials, and new emerging construction materials. Papers will be accepted for this Special Issue after going through a rigorous peer-review procedure.

Prof. Dr. Daehyeon Kim
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • load test
  • construction materials
  • new improvement technology
  • numerical analysis
  • new emerging materials

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Published Papers (4 papers)

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Research

17 pages, 9897 KiB  
Article
Peak Net Pressure Coefficients of Elliptical Center-Open Dome Roofs
by Jong Ho Lee, Dong Jin Cheon, Yong Chul Kim and Sung Won Yoon
Materials 2022, 15(16), 5497; https://doi.org/10.3390/ma15165497 - 10 Aug 2022
Cited by 1 | Viewed by 1376
Abstract
Recently, the demand for spatial structures such as retractable dome roofs is increasing. The safety of dome roofs must be ensured even when they are open. Hence, studies analyzing the peak pressure coefficients of spherical dome roofs are actively being conducted. However, no [...] Read more.
Recently, the demand for spatial structures such as retractable dome roofs is increasing. The safety of dome roofs must be ensured even when they are open. Hence, studies analyzing the peak pressure coefficients of spherical dome roofs are actively being conducted. However, no peak pressure coefficients for the cladding design of elliptical retractable dome roofs have been proposed. Although several studies on elliptical open dome roofs that open from the edge to the center have been conducted, studies on those that open from the center to the edge are still insufficient. This study investigated the peak pressure coefficients of elliptical center-open dome roofs. For wind tunnel tests, a model was fabricated with an opening ratio of 30%. Under experimental conditions, five different wall height-to-span ratios (from 0.1 to 0.5) were used, with the roof rise-to-span ratio set at 0.1. Accordingly, the experimental values of the peak pressure coefficients of elliptical center-open dome roofs were compared with those of the closed dome roofs proposed in the Korean and Japanese wind load codes. Subsequently, their efficiency was verified. The findings were also compared with previous research outcomes. Based on the results, peak net pressure coefficients are proposed for cladding designs suitable for elliptical center-open dome roofs. Full article
(This article belongs to the Special Issue Load Test and Numerical Analysis on Construction Materials)
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21 pages, 9184 KiB  
Article
Evaluation of the Pullout Behavior of Pre-Bored Piles Embedded in Rock
by Kyungho Park, Daehyeon Kim, Gyudeok Kim and Wooyoul Lee
Materials 2021, 14(19), 5593; https://doi.org/10.3390/ma14195593 - 26 Sep 2021
Cited by 2 | Viewed by 2501
Abstract
The subject of this study is dry process caisson tube method cofferdam (hereinafter called C.T cofferdam). This C.T cofferdam is designed to use the skin friction of the drilled shaft embedded into the rock for stability of buoyancy. A pre-bored pile embedded in [...] Read more.
The subject of this study is dry process caisson tube method cofferdam (hereinafter called C.T cofferdam). This C.T cofferdam is designed to use the skin friction of the drilled shaft embedded into the rock for stability of buoyancy. A pre-bored pile embedded in the bedrock was pulled out due to the buoyancy of the C.T cofferdam at the pier (hereinafter called P) 2 of the OO bridges under construction, to which this was applied. In this study, in order to solve this problem, the adhesion force applied with the concept of skin friction and the pre-bored pile of drilled shaft according to domestic and foreign design standards were identified; the on-site pull-out load test was used to calculate the pull-out force; and the skin friction of the drilled shaft and pre-bored pile embedded into the bedrock were compared and analyzed. In addition, the pull-out behavior of the pre-bored pile embedded in the bedrock was analyzed through numerical analysis. The adhesion strength tested in the lab was 881 kN for air curing of concrete and 542 kN for water curing of concrete, and the on-site pull-out test result was 399.7 kN. As a result of the numerical analysis, the material properties of the grout considering the site conditions used revealed that the displacement of the entire structure exceeded the allowable limit and was unstable. This appears to have lowered the adhesion strength due to construction issues such as ground complexity and both seawater and slime treatment, which were not expected at the time of design. Full article
(This article belongs to the Special Issue Load Test and Numerical Analysis on Construction Materials)
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21 pages, 5617 KiB  
Article
Evaluation of Anthropogenic Substrate Variability Based on Non-Destructive Testing of Ground Anchors
by Marek Wyjadłowski, Janusz V. Kozubal, Zofia Zięba, Dmitri Steshenko and Dariusz Krupowies
Materials 2021, 14(18), 5131; https://doi.org/10.3390/ma14185131 - 7 Sep 2021
Cited by 1 | Viewed by 2050
Abstract
The purpose of this paper is to describe the variability of soil rheological properties based on research carried out using load tests of ground anchors under complex geotechnical conditions. The heterogeneity of soil should always be considered when designing geotechnical constructions. In the [...] Read more.
The purpose of this paper is to describe the variability of soil rheological properties based on research carried out using load tests of ground anchors under complex geotechnical conditions. The heterogeneity of soil should always be considered when designing geotechnical constructions. In the present case, the earthwork created at the Warsaw Slope revealed an embankment of anthropogenic origin, located in a geologically and geomorphologically complex area of the Vistula valley slope. Excavation protection was anchored mainly in soils of anthropogenic origin. When the acceptance tests of the ground anchor were completed, the subsoil randomness was confirmed using nondirect, geostatistical methods. A standard solid rheological model with nonlinear fitting to the data was used. This model was established to describe the creeping activity of the ground anchor more accurately. The characteristics of man-made embankments were described using the parameters obtained with the rheological model of the subsoil. Full article
(This article belongs to the Special Issue Load Test and Numerical Analysis on Construction Materials)
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15 pages, 7394 KiB  
Article
Performance Assessment of the Post-Tensioned Anchorage Zone Using High-Strength Concrete Considering Confinement Effect
by Jun Suk Lee, Byeong Hun Woo, Jae-Suk Ryou and Jee-Sang Kim
Materials 2021, 14(7), 1748; https://doi.org/10.3390/ma14071748 - 2 Apr 2021
Cited by 3 | Viewed by 2675
Abstract
Post-tensioned anchorage zones need enough strength to resist large forces from jacking forces from prestress and need spiral reinforcement to give confinement effect. High-strength concrete (HSC) has high-strength and brings the advantage of reducing material using and simplifying reinforcing. We tested strain stabilization, [...] Read more.
Post-tensioned anchorage zones need enough strength to resist large forces from jacking forces from prestress and need spiral reinforcement to give confinement effect. High-strength concrete (HSC) has high-strength and brings the advantage of reducing material using and simplifying reinforcing. We tested strain stabilization, load–displacement, and strain of lateral reinforcements. Specimens that used one and two lateral reinforcements without spiral reinforcement did not satisfy the strain stabilization. Load capacity also did not satisfy the condition of 1.1 times the nominal tensile strength of PS strands presented in ETAG 013. On the other hand, specimens that used three and four lateral reinforcements without spiral reinforcement satisfied the strain stabilization but did not satisfy 1.1 times the nominal tensile strength of PS strands. However, the secondary confinement effect could be confirmed from strain stabilization. In addition, the affection of HSC characteristics could be confirmed from a reinforcing level comparing other studies. The main confinement effect could be confirmed from the reinforcement strain results; there was a considerable difference between with and without spiral reinforcement at least 393 MPa. Comprehensively, main and secondary confinement effects are essential in post-tensioned anchorage zones. In addition, the performance of the anchorage zone could be increased by using HSC that the combination of high-strength and confinement effect. Full article
(This article belongs to the Special Issue Load Test and Numerical Analysis on Construction Materials)
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