Rapid Strengthening of Masonry Structures Cracked in Earthquakes Using Fiber Composite Materials

Gu, Xianglin; Peng, Bin; Chen, Gonglian; Li, Xiang; Ouyang, Yifang

doi:10.1061/(asce)cc.1943-5614.0000285

Cited by 19 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[327] The application of FRP, as strengthening/reinforcing material -Figure 32 (a-c), is widely used in concrete structures, e.g. [328,329] ; however, it also finds an implementation in other structural materials, such as masonry, [330] timber, [331] steel [332][333][334] and structural glass [335][336][337] New construction uses FRP profiles, shells and sandwiches to materialize bridges, beam-column frame structures, lock-gates, roofs, among others. [338] However, when comparing the use of FRP materials in the rehabilitation market with the new construction with FRPs, the latter is more limited given the lack of guidelines.…”

Section: Potential and Challengesmentioning

confidence: 99%

“…This initiates before the tensile strength of the FRP material being reached and, therefore, this phenomenon has been of special attention worldwide for different types of applications, e.g. [330,[332][333][334][339][340][341][342] To study the debonding, different experimental techniques have been employed; however, standardized procedures for different debonding phenomena have not been defined yet. [342] Common experimental setups for adhesively bonded composite joints reported in literature (that applies for both EBR and NSM) can be divided into two main groups: (i) direct pullout test (Figure 34a and Figure 34c) and (ii) flexural beam test (Figure 34b and Figure 34d).…”

Section: Trends In Testingmentioning

confidence: 99%

See 1 more Smart Citation

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Budzik

Wolfahrt

Reis

et al. 2021

The Journal of Adhesion

View full text Add to dashboard Cite

The development of new adhesives has allowed to expand the application of bonding into the most diverse industrial fields. This review article presents the commonly used experimental methods for the investigation of mechanical performance of adhesively bonded joints in the aerospace, wind energy, automotive and civil engineering sectors. In these sectors, due to their excellent intrinsic properties, composite materials are often used along with conventional materials such as steel, concrete and aluminium. In this context, and due to the limitations that the traditional joining techniques present, adhesive joints are an excellent alternative. However, standardized experimental procedures are not always applicable for testing representative adhesive joints in these industries. Lack of relevant regulations across the different fields is often overcome by the academia and companies' own regulations and standards. Additional costs are thus mitigated to the industrial sectors in relation with the certification process which effectively can deprive even the biggest companies from promoting adhesive bonding. To ensure continuous growth of the adhesive bonding field the new international standards, focusing on actual adhesive joints' performance rather than on specific application of adhesive joints are necessary.

show abstract

Section: Potential and Challengesmentioning

confidence: 99%

Section: Trends In Testingmentioning

confidence: 99%

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Budzik

Wolfahrt

Reis

et al. 2021

The Journal of Adhesion

View full text Add to dashboard Cite

show abstract

“…Wang et al (2017) experimentally established the performance of masonry walls with traditional concrete columns and with fabricated boundary columns constructed of precast concrete interlocking blocks and generated finite element models to extend the range of parameters. Some researchers also pay attention to the strengthening of perforated brick masonry structures; Yardim and Lalaj (2016) presented the comparison of different strengthening techniques for unreinforced masonry walls and tested shear performance of strengthened walls under diagonal compression, and others (Bernat et al, 2015; Gu et al, 2012; Vicente et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Seismic behavior and shear strength of new-type fired perforated brick walls with high void ratio

Wang

Shi

Tao

2018

Advances in Structural Engineering

View full text Add to dashboard Cite

A new type of fired perforated brick with void ratio of more than 30% has been developed to improve the applicability of brick masonry structures. When the new perforated bricks are used for load-bearing walls, it will be a question whether the seismic performance of walls could satisfy the requirements under not obviously increasing the cost. This article presents an experimental study to investigate the seismic behavior and shear capacity of new-type perforated brick walls with high void ratio. For this purpose, six cross walls and three longitudinal walls with constructional columns under low reversed cyclic loading were tested, and the failure patterns, hysteretic characteristics, skeleton curves, energy dissipation capacity, ductility and reinforcement strain were observed. The test results indicate that (1) most new-type perforated brick wall specimens display shear failure, and hysteretic curves of cross walls are plump while there is some pinch phenomenon for longitudinal walls; (2) the specimens have considerable deformation and energy dissipation capacity, with displacement ductility factors of over 2.0; (3) the bearing capacity of walls increases but the ductility decreases with an increase of vertical compressive stress, and the bearing capacity and deformation all increase while considering the effect of horizontal reinforcement; and (4) the central brick wall and construction columns could resist shear force together before the peak load, while the shear force would be mainly born by construction columns at the later loading stage. Based on the test results, the constraint coefficient in current Chinese code was modified, and the calculation formula of shear capacity for cross walls was proposed. Comparison of calculated results with test data shows that the method will provide a way to predict the shear capacity of new-type fired perforated brick walls.

show abstract

“…The basalt fiber is an inorganic fiber which uses natural basalt ore as raw material, and the natural basalt ore is crushed to a certain size, then put into the melting furnace, and drawn at 1450 ∘ C-1500 ∘ C. The basalt fiber has natural compatibility, excellent mechanical properties, high temperature, and acid and alkali resistance. It is widely used as the insulation, sound absorption, heat-resistant materials, and reinforced materials in thermosetting resin and concrete [8][9][10][11][12][13]. Compared with the conventional fibers, the price of basalt fiber is only 1/10 of that of carbon fiber.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Unconfined Compressive Strength of Basalt Fiber Reinforced Clay Soil

Gao

et al. 2015

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

In order to study the mechanism and effect of basalt fiber reinforced clay soil, a series of unconfined compressive strength tests conducted on clay soil reinforced with basalt fiber have been performed under the condition of optimum water content and maximum dry density. Both the content and length of basalt fiber are considered in this paper. When the effect of content is studied, the 12 mm long fibers are dispersed into clay soil at different contents of 0.05%, 0.1%, 0.15%, 0.20%, 0.25%, 0.30%, and 0.35%. When the effect of length is researched, different lengths of basalt fibers with 4 mm, 8 mm, 12 mm, and 15 mm are put into soil at the same content of 0.05%. Experimental results show that basalt fiber can effectively improve the UCS of clay soil. And the best content and length are 0.25% and 12 mm, respectively. The results also show that the basalt fiber reinforced clay soil has the “poststrong” characteristic. About the reinforcement mechanism, the fiber and soil column-net model is proposed in this paper. Based on this model and SEM images, the effect of fiber content and length is related to the change of fiber-soil column and formation of effective fiber-soil net.

show abstract

Rapid Strengthening of Masonry Structures Cracked in Earthquakes Using Fiber Composite Materials

Cited by 19 publications

References 13 publications

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Seismic behavior and shear strength of new-type fired perforated brick walls with high void ratio

Experimental Study on Unconfined Compressive Strength of Basalt Fiber Reinforced Clay Soil

Contact Info

Product

Resources

About