Mechanical Research on Reinforced Concrete Materials

Wang, Wei

doi:10.3390/ma16216892

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…The bonding strength between the GFRP bar and concrete will differ from the bonding performance of GFRP ground bolts, and the actual state of geotechnical anchoring engineering would be inconsistent without considering the influence of grouting on anchoring performance in bonding strength tests between a GFRP bar and concrete. Existing studies have primarily centered on concrete structures [ 16 , 17 ], emphasizing the analysis of bonding strength at interfaces with concrete [ 18 ] or mortar, with a limited exploration of other geological materials such as sandy soil, clay soil, and various weathered rock masses [ 19 ]. Liu et al [ 20 ] conducted experimental studies to investigate the factors influencing the anchoring performance of fully threaded GFRP mortal bolts, using concrete with a strength grade of C60 to simulate rock mass.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Durability and Bond Properties of GFRP Resin Bolts

Lin,

Zhang,

Wang

2024

Materials

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Glass fiber-reinforced polymer (GFRP) anchor bolts are a new type of high-performance nonmetallic anchor with significantly higher tensile strength, a lighter weight, better corrosion resistance, and a lower cost than steel bars. Therefore, exploring the durability and bonding performance of GFRP anchor systems is of great importance for the structural design of protective engineering, especially in coastal environments. However, insufficient research has been conducted on the durability of GFRP resin bolts in seawater conditions, with no universal standard on the pullout testing of GFRP bolts. To study the durability and bonding performance of GFRP resin bolts, durability experiments were conducted in this work using artificial seawater, and the pullout tests were conducted using a large-scale concrete platform with different compressive strengths (21.2, 40.8, and 61.3 MPa). The results of the durability experiments indicated that the strength variations of the GFRP rods and epoxy resin materials in artificial seawater environments were less than 5%. Subsequently, indoor pullout tests using steel tubes filled with epoxy resin were conducted, and the test results indicated a critical anchor length value. Pullout tests of the GFRP resin bolts embedded in large-scale concrete blocks were also conducted with different strengths. According to the test results, all GFRP resin bolts embedded in the three concrete blocks with different compressive strengths exhibited rod fracture failure. The failure mode was not controlled via the compressive strength of the concrete blocks due to the high bonding strength between the resin and the rod, as well as between the resin and the concrete. Therefore, this GFRP resin anchor system could fully utilize the tensile strength of GFRP rods. This research offers significant practical value in verifying the safety and reliability of GFRP resin bolts in corrosive marine service environments, and it contributes to the application and development of GFRP materials in the engineering field, serving as a valuable reference for the structural design and further study of GFRP bolts.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Durability and Bond Properties of GFRP Resin Bolts

Lin,

Zhang,

Wang

2024

Materials

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“…If the structures with the same layout and construction are built using different materials it can change not only the dynamic characteristics of the structure but also the SSI effect. Materials used in the design of structures are, e.g., as follows: high-performance concrete (HPC) [16] or ultra-high-performance concrete (UHPC) [17], masonry [18][19][20], wood [21], reinforced concrete (RC) [20,[22][23][24], and cellular concrete [25].…”

Section: Introductionmentioning

confidence: 99%

Influence of Subsoil and Building Material Properties on Mine-Induced Soil–Structure Interaction Effect

Zajac,

Kuzniar,

Tatara

2024

Applied Sciences

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Soil–structure interaction (SSI) refers to the dynamic interaction between a structure and the surrounding soil on which it rests. The behavior of the soil can significantly affect the response of the building structure. In the context of civil engineering and structural analysis, SSI becomes particularly important when considering the response of structures to dynamic loads such as earthquakes or so-called paraseismic loads, e.g., mining tremors. Several factors contribute to SSI. Soil and building structure material properties, foundation type, and loading conditions are the most important parameters. The article concerns SSI in the case of mining rock bursts in Poland. The influence of changes in site material conditions and building material properties on the SSI phenomenon was investigated. A few variants of different properties of typical construction materials (brick, reinforced concrete, and cellular concrete) in the case of selected representative building structure were considered. The subsoil material properties from the wide range were also taken into account. Numerical three-dimensional finite element method (FEM) analysis was applied. The adopted models of the soil-structure system were verified by data from in situ experimental vibration measurements. A significant influence of the subgrade material and the building structure material on the SSI was demonstrated.

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