ACI-COMPILATION-28-1994.pdf
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1、 _ A C 1 COMP*:2B * I 0662949 05L8300 242 SYNTHETIC AND OTHER NONIMETALLE FIBER REINFORCEMENT OF CONCRETE Compilation 28 American Concrete Institute Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 0
2、3/05/2007 02:30:17 MSTNo reproduction or networking permitted without license from IHS -,-,- 3 8 14 17 21 26 32 38 Synthetic and Other Non-Metallic Fiber Reinforcement of Concrete AC1 Compilation 28 Contents Flexural and Shear Behavior of Concrete Beams Reinforced with 3-D Continuous Carbon Fiber Fa
3、bric, by Paul Zia, Shuab H. Ahmad, Rakesh K. Garg, and Kristina Hanes Punching Shear Tests of Slabs Reinforced with 3- D Carbon Fiber Fabric, by S.H. Ahmad, P. Zia, T.J. Yu, and Y. Xie Use of Continuous Fibers for Reinforcing Con- crete, by Takayuki Hirai Using FRP Materials in Prestressed Concrete
4、Structures, by Koichi Minosaku Bridges Constructed Using Fiber Reinforced Plas- tics, by Magdi A. Khaiifa, Sharon S.B. Kuska, and James Krieger FRP Reinforcement for Concrete Structures, by M.A. Erki and S.H. Rizkaila 41 48 52 59 64 72 74 76 79 Anchorages for FRP Reinforcement, by M.A. Erki and S.H.
5、 Rizkalia 82 A Smart Highway Bridge in Canada, by S.H. Riz- kaiia and G. Tadros Fiber Composite Plates Can Strengthen Beams, by H. Saadatmanesh and M.R. Ehsani Fiber-Reinforced Rapid-Setting Concrete, by P. Balaguru Seven Case Studies of Synthetic Fiber Reinforced Slabs, by Morris Schupack and Willi
6、am R. Stanley Structural Wood-Fiber Concrete, by Ask0 Sarja Carbon Fiber Reinforced Concrete, Shigeyuki Akihama, Tatsuo Suenaga, and Hiroaki Nakagawa Fiber Reinforcement in Residential Concrete, by Daniel T. Biddle A Home with a View, by Merry M. Miiier Fibrillated Polypropylene Reinforced Cement- B
7、ased Products, by A. Vittone Feather Fiber Reinforced Concrete, by Sameer A. Hamoush and Moetaz M. El-HawaIy Fabrication of Aramid and Carbon Fiber Rein- forced Plastic Pretensioned Beams, by Rajan Sen, Kenneth Spillett, and Mohsen Shahawy Copyright American Concrete Institute Provided by IHS under
8、license with ACI Licensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 02:30:17 MSTNo reproduction or networking permitted without license from IHS -,-,- A C 1 COMP*:28 * Obb2949 0538302 015 Preface AC1 Compilations combine material previously published in Institute per
9、iodicals to provide compact and ready reference on specific topics. The Material in a compilation does not necessarily represent the opinion of an AC1 technical committee - only the opinions of the individual authors. However, the information presented here is considered to be a valuable resource fo
10、r readers interested in the subject. James I. Daniel Chairman, AC1 Committee 544 Fiber Reinforced Concrete On The Cover: When this residence, made of fiber reinforced concrete was built, a major goal was to maximize the lakefront view. The rear wall of the structure was constructed of both precast a
11、nd site-cast post-tensioned concrete panels and contains 880 ft2 of windows. The house was designed so that the living room, dining room, and bedrooms have a view of the water. All panels, I-beams, bar joists, etc., were erected at one time from one location. (See story on p. 74.) American Concrete
12、Institute, Box 191 50, Redford Station, Detroit, Michigan 4821 9 Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 02:30:17 MSTNo reproduction or networking permitted without license from I
13、HS -,-,- A C 1 COMP*28 * M 0662949 OSLB303 T5L Flexural and Shear Behavior of Concrete Beams Reinforced with %D Continuous Carbon Fiber Fabric orrosion of steel reinforcement is a major cause of deterioration of reinforced concrete struc- 6 tures. There is an increasing in- terest in the use of non-
14、metallic high performance materials as alternative re- inforcement for concrete structures. Many different types of fibers have been studied and used as reinforcement for cement and mortar composites and a few have been used for concrete.(6.7.ll) Most of the research on fiber rein- forced concrete r
15、eported in the literature has been concerned with randomly dis- persed short fibers in one, two, or three dimensions.(3,5) Some investigations in- volving one or two-dimensional contin- uous fibers have also been reported. Only a few studies have been conducted on the use of three-dimensional contin
16、- uous fiber fabric as reinforcement for cement mortar.(ls2.4J0) This paper pre- sents the results of a study, examining the flexural and shear behavior of con- crete beams reinforced with three-di- mensional continuous carbon fiber fabric.9) 3-0 continuous carbon fi ber fabric The 3-D continuous ca
17、rbon fiber fabric used in this study is a product developed recently in Japan. It is made from Poly- acrylonitrile-type continuous fibers Fig. 1 - 3-D continuous carbon fiber fabric reinforcement Plexiglass glued to element for attaching w i r e extensometer Carbon fiber element Fig. 2 -A tensile sp
18、ecimen of fiber fabric element. (PAN-type) having a diameter of 275.5910 in. (7 x 10-6 m), a specific gravity of 1.79, tensile strength of 497.37 ksi (3430 MPa), elastic modulus of 34,105 ksi (235,200 MPa), and 1.5 percent elongation. The fabric is con- structed from the fibers by three-di- mensiona
19、l weaving, with each element encased in epoxy coating, thus forming a rigid fabric (Fig. 1). Each element of the fabric contains 48,000 fibers with a total cross sectional area of 0.00286 in.2 (1.85 mm2). The nominal cross sectional area of the element including the epoxy coating is 0.0065 in.2 (4.1
20、9 mm2). To determine the stress-strain rela- tionship of the fabric, an 8-ft long ele- ment consisting of 48,000 individual fibers was cut from the fabric from which three 16-in. long specimens were prepared for tension test. As shown in Fig. 2, an epoxy block of square prism (% x Yi x 2% in. 19 x 1
21、9 x 64 mm)was cast at each end of a specimen so that the specimen could be gripped by a uni- versal testing machine. Between the two epoxy blocks, two small plexiglass disks were glued by epoxy 8 in. apart on the specimen. An extensometer of 8-in. guage length was attached to the plexiglass disks to
22、 measure the extension of the specimen in tension test as shown in Fig. 3. At failure, the specimens all frac- tured within the 8-in. guage length. There was no evidence that the joints formed from the transverse elements through weaving had any adverse effect on the tests. The test results are show
23、n as the stress-strain curves for the three speci- mens in Fig. 4. The stress is computed on the basis of the nominal area of the fabric element which includes the epoxy coating rather than the net area of the carbon fibers. It is noted that, for the second specimen, the stress-strain curve became n
24、on-linear when some of the fibers broke at the stress level of about 100,000 psi (690 MPa). The average value of the apparent modulus of elas- ticity of the three specimens is about SYNTHETIC AND NON-METALLIC FIBER REINFORCEMENT 8 Copyright American Concrete Institute Provided by IHS under license w
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