An Experimental Investigation on the Structural Behavior of FRP-Concrete Composite Compression Members

2010 ◽  
Vol 654-656 ◽  
pp. 2644-2647 ◽  
Author(s):  
Joon Seok Park ◽  
In Kyu Kang ◽  
Jong Hwa Park ◽  
Joo Kyung Park ◽  
Hong Taek Kim ◽  
...  
Keyword(s):  
Civil Engineering ◽  
Construction Material ◽  
Construction Materials ◽  
Fiber Reinforced ◽  
Engineering Structures ◽  
Specific Strength ◽  
Composite Pile ◽  
New Construction ◽  
Frp Tube ◽  
Superior Corrosion Resistance

In construction industries, new construction materials are needed to overcome some problems associated with the use of conventional construction materials due to the change of environmental and social requirements. Accordingly, the requirements to be satisfied in the design of civil engineering structures are diversified. As a new construction material in the civil engineering industries, fiber reinforced polymeric plastic (FRP) has a superior corrosion resistance, high specific strength/stiffness, etc. Therefore, such properties can be used to mitigate the problems associated with the use of conventional construction materials. Nowadays, new types of bridge piers and marine piles are being studied for new construction. They are made of concrete filled fiber reinforced polymeric plastic tubes (CFFT). In this paper, a new type of FRP-concrete composite pile which is composed of reinforced concrete filled FRP tube (RCFFT) is proposed to improve compressive strength as well as flexural strength of an RCFFT. The load carrying capacity of proposed RCFFT is discussed based on the result of experimental and analytical investigations.

Flexural Performance Evaluation of Hybrid Concrete Filled Fiber Reinforced Polymer Plastic (FRP) Tube Connection

2017 ◽  
Vol 730 ◽  
pp. 347-352 ◽  
Author(s):  
Jae Hun Seo ◽  
Jin Uk Cheon ◽  
Kwang Yeoul Shin ◽  
Sun Hee Kim ◽  
Soon Jong Yoon
Keyword(s):  
Structural Integrity ◽  
Construction Material ◽  
Fiber Reinforced ◽  
Element Analysis ◽  
Flexural Performance ◽  
Reinforced Polymer ◽  
The Finite Element Analysis ◽  
Composite Pile ◽  
Frp Tube ◽  
Performance Research

In the construction industries, in order to compensate material disadvantages of existing construction material (concrete, steel, wood, etc.) and satisfy requirements of the structural performance, research on durable and outstanding corrosion resistant fiber reinforced polymeric plastic (FRP) is actively underway. In general, a pile cannot be produced with unlimited lengths because of the size of the manufacturing machine and transportation to construction site. Therefore, the connection of pile and structural integrity of connection should be considered in the pile design. In this paper, hybrid FRP-concrete composite pile (HCFFT) was investigated by focusing on the connection of HCFFT members. The connection capacity of HCFFT was evaluated by the experiment and the finite element analysis. From the results appropriate connection method of HCFFT is discussed.

Design Consideration of the Nonuniform Stress Distribution of Pultruded Structural Member under Compression

2011 ◽  
Vol 250-253 ◽  
pp. 3564-3570 ◽  
Author(s):  
Jin Woo Choi ◽  
Seong Sik Lee ◽  
Hyung Joong Joo ◽  
Chang Won Kim ◽  
Dong Min Ok ◽  
...  
Keyword(s):  
Form Factor ◽  
Stress Distribution ◽  
Cross Sections ◽  
Construction Material ◽  
Construction Materials ◽  
Structural Member ◽  
Structural Members ◽  
Fiber Reinforced ◽  
Nonuniform Stress ◽  
New Construction

As a new construction material, fiber reinforced polymeric plastic structural shapes are readily available. Therefore, new construction and existing structure rehabilitation using FRP materials are ever increasing trend because of FRP material’s chemical and mechanical properties compared with those of conventional construction materials such as steel and concrete. Among the structural composites, pultruded fiber reinforced polymeric plastic structural members are the most popular for the civil engineering applications because of the cost effectiveness. However, they are made of fiber reinforced polymer resin system, they have relatively low modulus of elasticity and also cross-sections of structural shapes are composed of thin plate components such as flange and web. Therefore, structural stability is an important issue in the design of pultruded structural members. For the design of pultruded structural member under compression, buckling and post-buckling strengths of plate components may be taken into account. In the structural steel design following AISC/LRFD, in addition to the buckling strength, the nonuniform stress distribution in the section is incorporated with a form factor. In this paper, the form factor for the design of pultruded structural member under compression is investigated by experiment. Based on the experimental results, the form factor for the design of pultruded structural shapes have been suggested.

Form Factor for the Design of Pultruded FRP Structural Members under Compression

2010 ◽  
Vol 654-656 ◽  
pp. 2648-2651 ◽  
Author(s):  
Jin Woo Choi ◽  
Seung Sik Lee ◽  
Hyung Joong Joo ◽  
Young Jong Sim ◽  
Soon Jong Yoon
Keyword(s):  
Form Factor ◽  
Construction Material ◽  
Construction Materials ◽  
Structural Members ◽  
Fiber Reinforced ◽  
Increasing Trend ◽  
Post Buckling ◽  
New Construction ◽  
Low Modulus ◽  
Steel Design

As a new construction material, fiber reinforced polymeric plastic structural shapes are readily available. Therefore, construction and structure rehabilitation using FRP materials are an ever increasing trend because of FRP material’s superior chemical and mechanical properties compared with those of conventional construction materials such as steel and concrete. Among the FRP materials, pultruded fiber reinforced polymeric plastics are the most popular for civil engineering applications. However, it has relatively low modulus of elasticity and also cross-section of structural shapes is composed of plate components such as flange and web. Therefore, stability is an important issue in the design of pultruded structural shapes. For the design of pultruded structural member under compression, buckling and post-buckling strengths of plate components should be taken into account. In the structural steel design following AISC/ LRFD, this effect, in addition to the buckling strength, is incorporated with a form factor. In this research, the form factor for the design of pultruded structural shapes under compression is investigated. Based on the analytical study, the form factor for the design of pultruded structural shapes have been suggested.

scholarly journals Limit states design: What do we really want?

1981 ◽  
Vol 8 (1) ◽  
pp. 44-50 ◽  
Author(s):  
D. E. Allen
Keyword(s):  
Civil Engineering ◽  
Construction Materials ◽  
Design Standards ◽  
Limit States ◽  
Engineering Structures ◽  
Loading Function ◽  
Resistance Function ◽  
Open Discussion ◽  
Code Complexity ◽  
Simple Limit

The purpose of the paper is to open discussion on the development of Canadian structural codes and standards. It argues for a common simple limit states format for all civil engineering structures, with the loading function contained in structural use codes the same for all construction materials, and the resistance function contained in materials design standards the same for all structural uses. The format for loading and resistance functions and the degree of code complexity are discussed.

An Experimental Study of the Characteristics of Environment-Friendly Construction Materials by Recycling Sewage Sludge Ash

2008 ◽  
Vol 569 ◽  
pp. 297-300
Author(s):  
Jae Ik Lee ◽  
Byung Wan Jo ◽  
Yeong Seok Yoo ◽  
Kyeong Ho Cheon
Keyword(s):  
Sewage Sludge ◽  
Construction Material ◽  
Construction Materials ◽  
Drying Shrinkage ◽  
Environment Friendly ◽  
Sewage Sludge Ash ◽  
New Construction ◽  
Specific Material ◽  
The One ◽  
Sludge Ash

As a basic stage for developing new construction material utilizing sewage sludge ash, this study is identified by specific material characteristics through XRD, SEM, uniaxial compressive strength, porosity, and the drying shrinkage by manufacturing mortar with sewage sludge ash. The average drying shrinkage of sewage sludge ash mortar aged 7 days showed 88% of the strain of the one aged 28 days. The porosity of sewage sludge ash mortar was about 7~10%. The more quick lime and blast furnace slag were added, the less porosity appeared.

scholarly journals Investigation of the effectiveness of new construction materials in road constructions

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Samofeev Nikita ◽  
Zemfira Gareeva ◽  
Radmir Musin ◽  
Elvira Khasanova ◽  
Rinat Shaikhmetov ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Building Materials ◽  
Polypropylene Fiber ◽  
Construction Materials ◽  
Road Construction ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Fibrous Concrete ◽  
New Construction ◽  
The Cost

Modern road constructions go through a whole range of different loads of static and dynamic nature; therefore, higher-quality materials and solutions are required for the roads of the corresponding class, ensuring their compliance with various climatic, geological and economic factors. Currently used road constructions have different basement, they can be of natural or artificial type. Designing a foundation on a concrete base is considered as the most enduring, however, there are a number of aspects that significantly affect their durability. Improving their reliability and quality is an important promising direction in the study of the use of new building materials. The article shows the possibility of improving the quality of the foundations of road structures through the use of poly-reinforced fiber-reinforced concrete. Compared with metal fiber, polypropylene fiber gives the desired effect of reducing the weight of the structure and the cost. There is a significant increase in the waterproof performance of fiber-reinforced concrete, which is especially important for drainage sections of road construction foundations. The authors determined that a significant improvement in the performance of fibrous concrete is achieved, when the polydisperse reinforcement of the concrete matrix use polypropylene (0.3 %) and steel (1.7 %) fiber. In this case, the first option has an impact on crack resistance, and the use of steel – on strength. Thus, with this ratio of reinforcement with various fibers, a synergistic effect of improving the static and dynamic indicators of fibrous concrete is achieved. According to authors, bench studies of reinforcement of fiber-reinforced concrete structures for the foundations of roads show their high economic efficiency and reduce the cost of 1 m3 of the finished structure to 16 %.

scholarly journals The Effectiveness of Sustainable Construction Materials by Using U-Shaped Composite Spacer Block (UCop)​

2019 ◽  
Vol 3 (1) ◽  
pp. 7-10
Author(s):  
Mohamed Saim ◽  
Keyword(s):  
Construction Material ◽  
Market Price ◽  
Construction Materials ◽  
Mechanical Tests ◽  
Sustainable Construction ◽  
Particle Board ◽  
Construction Costs ◽  
Minimum Requirement ◽  
Minimum Standards ◽  
New Construction

Nowadays in construction development, the needs of construction materials that have a unique reinforced concrete design with good quality, reasonable market price, and easy installation techniques has been prioritized. Therefore, this study aimed to produce an alternative new construction material that can fulfill the requirements. The U-shaped composite spacer block (UCop) through the production of Cement Bonded Particle Board (CBPB) as a specimen block was produced from the wood waste of carpentry work combined with Shorea spp. (Seraya red and white) particle size approximately 0.4mm - 2.00 mm. Then it was mixed together with Portland cement by using a ratio 1:2.5. The mixture was then added with Ammonia Chloride (Al2SO4) and Calcium Chloride (CaCl2) act as additives for this product. The physical and mechanical tests were conducted in this study. The results were showed that the thickness expansion was achieved an average of 1.79 %, which was passed the minimum requirement of MS934:1986 standards. However, the flexural strength did not meet the minimum standards. The poor mixing technique was attributed to the results. However, UCop still could contribute as an alternative solution in ease the concrete pouring process using a special binder, giving the spacer block any resistance to formwork of columns or beams is filled with concrete. The high-impact innovations of this product in construction such as it can help the process to be more efficient and to reduce construction costs, next indirectly preserve the nature.

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