Deflections of beam with 16mm bamboo splints with respect to plain concrete beams fig 21. In this paper we have tried to explore the structural behaviour and the future applications of bamboo reinforced beam for a low cast. Pdf comparative analysis of steel reinforced and bamboo. The web materials considered were bamboo, rattan cane and steel. Special emphasis will be laid on how both sets of beams respond to nominal. Bamboo reinforcement a sustainable alternative to steel.
Bamboo reinforced concrete application and analysis after the fabrication of the first proofofconcept hightensile specimens of our bamboo composite material the next logical step was the analysis of the reinforcing qualities for concrete applications. Bamboo specimens were dried to produce such a moisture content of about 15%. Replacement of steel by bamboo makes the structure most economical and making easy to lowerincome families study on bamboo as reinforcement in cement concrete. Thus, bambooreinforced members tend to have large deflections and wide cracks when loaded to capacity. This study also showed that the ultimate load carrying capacity of bamboo reinforced concrete tested, on averaging all percent reinforcement, was about 35% of the equivalent reinforced steel concrete beams. Pdf performance evaluation of bamboo reinforced concrete beam. Bamboo is characterized as a bio degradable, renewable and an energy efficient natural resource. The aim of the current study is to investigate the structural performance of bamboo reinforced scc and vc beams without transverse reinforcements.
Bamboo reinforced concrete construction follows same design, mix proportions and construction techniques as used for steel reinforced. Strength comparison of 20mm bars with respect to plain concrete beams. A comparative study of bamboo reinforced concrete beams. Efe ikponmwosa, funso falade, christopher fapohunda, james okosun. Present research focus on development of model for short term deflection prediction of beam reinforced with twisted bamboo cables. It can be observed that the bamboo segment of the beam reinforcement, treated. Preliminary tests of the mechanical properties of bamboo were performed, and the results have been used in the design and construction of bamboo cages to reinforce concrete beams. The load carrying capacity of the moso bamboo reinforced beam was higher than that of solid bamboo reinforced beam. To study the effect of replacement of steel reinforcement by bamboo. The shear area of concrete is entered as input to some computer programs when the analysis is required to take into account the deformations due to shear. After finding out these parameters, the design of bamboo reinforced concrete beams was done with the same reinforcement ratio but bamboo reinforced strips having different types of patterns on.
Bamboo is an extremely strong fiber with twice the compressive strength of concreteand roughly the same strength toweight ratio of steel in tension. Figure 1 resistance coefficients for bamboo reinforced concrete beams and their flexural. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Bamboo can be used as an alternative material in reinforcement of concrete. Flexural performance of bamboo reinforced foamed aerated concrete beams with and without compression. It was concluded that the bamboo bars are suitable rebars for nonload bearing and lightweight reinforced concrete flexural structures. The american concrete institute aci design guidelines are suitable for nondeflectioncritical design and construction of bamboocomposite reinforcedconcrete members. They are made out of prefabricated beams which is composed of a steel truss fixed in a rectangular base of concrete, and this way commercialized. The bamboo reinforced beam after testing has been exposed to open air in the university campus. Increase of load pattern with respect to plain concrete beam. Pdf traditionally steel is used as reinforcement in concrete. All those test results showed that the capacity of flexural beam only 56% of the capacity, if the bamboo reinforcement in beams reached its maximum strength. Ten bambooreinforced concrete simply supported beams were tested to failure under thirdpoint loading, and six other beams were subjected to longterm loading. The use of small diameter wholeculm bars andor split bamboo a.
However, bamboo reinforced beam strength was higher than that of plain concrete beam. Strength of composite bamboo and reinforced concrete. The flexural bamboo increased beam capacities by up to 242% with an optimal reinforcement ratio of up to 3. The aim of this paper is to study the flexural strength of concrete beam with wulung bamboo that has been in the notch as reinforcement. For bamboo reinforced concrete beam, the load carrying capacity increased about 3 times that of plain concrete beam having same dimensions. Bamboo reinforcement is installed as tensile reinforcement with a variation of reinforcement area 140 mm2, 200 mm2, and 450 mm2. Bamboo reinforced concrete mix proportion, design and. The most expensive means of shear reinforcement provision in bamboo reinforced beams is by rattan cane stirrups irrespective of the grade of concrete. Bambooreinforced concrete beams subjected to thirdpoint. A study of the feasibility of using bamboo and nonsteel as the reinforcing material in concrete members was conducted in our laboratory. Performance evaluation of bamboo reinforced concrete beams. Pdf a study on bamboo reinforced concrete beams warse. Bamboo reinforced concrete beams for precast slab t. The motivation for such replacement is typically costbamboo is readily available in many tropical and subtropical locations, whereas steel reinforcement is relatively.
The test results indicated that bamboo stirrups increased unreinforced concrete beam shear capacities by up to 259%. This paper represents design and testing of bamboo reinforced concrete column to be casted with bamboo reinforcement varying from 2. Bamboo reinforcement can be detached from the concrete because split in the longitudinal direction. Bamboo as reinforcement in structural concrete elements.
Bamboo reinforced concrete concrete civil engineering. Flexural performance of bamboo reinforced foamed ae. It is a comparative study of bamboo reinforced concrete beams with shear links made of different materials. Similarly, two bamboo sticks were placed at the top and bottom. Bamboo has been a very fascinating natural material useful in almost all aspects of life.
Since the top of a reinforced concrete beam is under compression and the bottom is under tension, and steel has a tensile strength far greater than that of concrete, the concrete in the lower part of a reinforced concrete beam becomes relatively ineffective. Exploring the use of bamboo reinforced rubberized concrete brrc as a sustainable structural system a thesis presented to the graduate school of clemson university in partial fulfillment of the requirements for the degree master of science civil engineering by muxing ding august 2015 accepted by. This research will seek to compare bamboo reinforced concrete beams and steel reinforced concrete beams experimentally. To examine the behaviour of the bamboo in the concrete, threepoint load bending test will be conducted on bamboo reinforced beams and the.
Inthis study, the behaviour of bamboo reinforced concrete beams was examined under a third point loading. But because of cost and availability, replacement of steel with some other. Effective moment of inertia approach for predicting. Pdf performance evaluation of bamboo reinforced concrete.
The mix design of concrete can be as per the strength requirement for structure, as per structural design. Bamboo reinforced concrete design is similar to steel reinforced concrete design if its mechanical properties are properly utilized hence providing an alternative method for lowcost construction in areas where steel reinforcement is. Just steel reinforcement is replaced with bamboo reinforcement. Practically, engineers make provisions for at least minimum transverse. As this is a lighter structure it will be less vulnerable to earthquake loads.
Pdf experimental analysis of bending stresses in bamboo. It is a boon for light weight and temporary buildings. Fig 20 and 21 show comparison of deflections of bamboo reinforced beams with plain unreinforced beam sections. The authors conclude that, although bamboo is a material with extraordinary mechanical properties, its use in bambooreinforced concrete is an illconsidered concept, having signi. It is an environmentally sustainable building material. Pdf this study aims at exploring ways of making the useof bamboo reinforced concrete beams simple, efficient and costeffective for rural. Research and development on bamboo reinforced concrete. Singly and double bamboo reinforced beams of 750 mm length having 150 mm width and depth are compared with plain concrete beam to carry out in this test. Performance of wulung bamboo reinforced concrete beams. Comparative studies of steel, bamboo and rattan as. Similar approaches have already been attempted decades ago. Bamboo reinforced concrete columns ncrete slabs with permanent shutter forms conclusion.
A comparative study of bamboo reinforced concrete beams using. Bond strength of bamboo reinforcement in light weight. Abstract the results of investigation conducted to evaluate the flexural performance of foamed aerated concrete beams with bamboo splints as tensile. The results showed that steel reinforced beam had the highest strength to withstand load. Since use of reinforcement has no effect on compressive strength requirement of concrete, bamboo reinforced concrete mix proportion can be same as steel reinforced concrete mix design. Issn 2278 3083 international journal of science and applied information technology ijsait, vol. Performance of bamboo reinforced concrete beam 840 2. The load carrying capacity of the bamboo reinforced beam using square crosssection was higher than bamboo reinforced beams with triangular and circular cross sections. Fig 22 shows a uniform trend has been noticed in the increase in. Pdf a comparative study of bamboo reinforced concrete beams. Bamboo reinforced concrete beams simply supported beam subjected to fourpoint bend test with its middle third portion subjected to maximum uniform bending and zero shear force and assuming that the selfweight of the beam is negligible has been tested. This study aims at exploring ways of making the useof bamboo reinforced concrete beams simple, efficient and costeffective for rural construction with ghana as a case study. Strength properties of bamboo and steel reinforced.
This study will consider the bambusa vulgaris specie, seasoned and cut into thin strips and tested without any treatment to determine the absorption and tensile properties of the bamboo. For a given span length and sustained load, the deflections are inversely proportional to the cube of the depth of a beam. Performance evaluation of bamboo reinforced concrete beam. The precast slabs are one of the most commonly used elements in brazilian construction industry. Bambooreinforced members, designed and built as suggested herein, should develop two to four times the ultimate flexural loadcarrying capacity of unreinforced members of equal dimensions.
Replacement of steel by bamboo reinforcement iosr journal. If you continue browsing the site, you agree to the use of cookies on this website. Many researchers have tried to use bamboo as substitute of steel in reinforced concrete. Concrete is found to have finest compressive strength however poor in tensile. From test result it was found that load at first crack and ultimate load in bamboo reinforced beam with. Experimental study of bamboo reinforced concrete beams. Bamboo reinforced coconut shell concrete beams, international journal of scientific engineering and research, volume 3 issue 5, may 2015. Design a bamboo reinforced concrete beam to span 2.
Deflections of beam with 20mm bamboo splints with respect to plain concrete beams fig 22. Reinforcement, steel, bamboo, concrete, flexural test, compressive test. Scope and limitation this study is experimental in nature. This study demonstrates that there is significant potential for practical implementation of the bamboocomposite reinforcement described in this paper. Pdf a comparative study of bamboo reinforced concrete. Bamboo is a light weight, tensile, flexible, sustainable, eco friendly, green material and its use shall be advocated in building construction for sustainable. The environmental and financial comparison demonstrates that bamboo can compete as a building material. This study aims at exploring ways of making the use of bamboo reinforced concrete beams simple, efficient and costeffective for rural construction with ghana as a case study. One can easily eliminate steel reinforcement for short spansand actually long ones too. The goal of this research is to add to the knowledge base of bambooreinforced concrete brc by focusing on a unique stirrup design and testing the lapsplicing of flexural reinforcement. Rahman et al 2011 evaluated performances of bamboo as reinforced concrete beam and found that for singly bamboo reinforced concrete beam, the.
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