玻璃钢最新文献_第5页

Evaluation and Standardization of Mechanical Test Methods for Continuous Fiber Sheet in Japan

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5611

N. Matsumoto, T. Harada, K. Yagi

引用次数: 0

Design Guidelines for Concrete Beams Prestressed with Partially-Bonded Fiber Reinforced Plastic Tendons 部分粘结纤维增强塑料筋预应力混凝土梁的设计导则

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5673

J. Lees, C. Burgoyne

引用次数: 1

Accelerated and Natural Weathering of Glass Fiber Reinforced Plastic Bars 玻璃钢钢筋的加速和自然老化

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5657

P. Vijay, H. Gangarao

引用次数: 31

Flexural and Shear Performance of Concrete Beams Strengthened with Fiber Reinforced Polymer Laminates 纤维增强聚合物层合板加固混凝土梁的抗弯抗剪性能

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5690

D. Kachlakev, W. Barnes

{"title":"Flexural and Shear Performance of Concrete Beams Strengthened with Fiber Reinforced Polymer Laminates","authors":"D. Kachlakev, W. Barnes","doi":"10.14359/5690","DOIUrl":"https://doi.org/10.14359/5690","url":null,"abstract":"Fiber Reinforce Polymer (FRP) composites are a very promising alternative to the use of traditional materials and methods in the repair and strengthening of under-designed or deteriorating structures. While most results indicate that strengthening with FRP is very effective, the wide variety of testing techniques used among researchers make it very difficult to compare results. Objectives of this research were to gain a broader understanding of FRP's effects on the failure modes and performance of reinforced concrete beams, to investigate a variety of strengthening schemes, and to validate current design methods used for shear and flexural strengthening of reinforced concrete members. This was achieved by comparing a variety of FRP systems under similar conditions. The seventy-one specimens tested exhibited a variety of failure modes depending on the strengthening scheme, thickness of the laminates, and material (carbon or glass fibers). The beam failure modes showed strong dependency on the FRP thickness. As the thickness of the composite laminate increased, debonding or concrete shear failure dominated. The effectiveness of FRP reinforcement was studied as a function of FRP rigidity and the effective strains developed in the fibers.","PeriodicalId":68258,"journal":{"name":"玻璃钢","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1999-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72815909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Shear Load Testing of Carbon Fiber Reinforced Polymer Strengthened Double Tee Beams in Precast Parking Garage 预制停车库碳纤维增强聚合物增强双三通梁剪切荷载试验

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5696

Matthew Mettemeyer, P. Serra, Michael D. Wuerthele, G. Schuster, A. Nanni

引用次数: 8

Experimental Study on Bond-Slip Behavior of Longitudinal Bars in Reinforced Concrete Beams Confined with Fiber Reinforced Polymer Sheets 纤维增强聚合物板约束下钢筋混凝土梁纵筋粘结滑移性能试验研究

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5635

S. Kono, Kazunari Matsuno, T. Kaku

{"title":"Experimental Study on Bond-Slip Behavior of Longitudinal Bars in Reinforced Concrete Beams Confined with Fiber Reinforced Polymer Sheets","authors":"S. Kono, Kazunari Matsuno, T. Kaku","doi":"10.14359/5635","DOIUrl":"https://doi.org/10.14359/5635","url":null,"abstract":"Twenty cantilever type specimens and four beam specimens were tested to evaluate the bond behavior in reinforced concrete members confined with carbon or aramid FRP sheets. The main test variables were the vertical depth, the diameter and the number of longitudinal bars, and the type and the amount of FRP sheets. The test results showed that the confined specimens had higher bond strength, larger peak load slip displacement and lesser bond degradation after the peak than their unconfined prototype counterparts. Based on the test results, an equation was developed to predict the increase in bond strength due to the FRP sheet confinement. That increase was expressed similarly to that due to transverse steel reinforcement except that the elastic modulus of the FRP sheet was validated using results of column specimens tested in other research institutes and by cantilever and beam specimens test by authors. It was proved that as long as the bond strength of an unconfined prototype specimen is evaluated properly, the total bond strength of confined specimens can be predicted accurately using the proposed equation although the limitations of the proposed equation still need to be clarified.","PeriodicalId":68258,"journal":{"name":"玻璃钢","volume":"261 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1999-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74519357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Durability of Fiber Reinforced Polymer Reinforcement Embedded in Concrete 混凝土中嵌入纤维增强聚合物钢筋的耐久性研究

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5649

K. Sekijima, Y. Otsuka, T. Konno

引用次数: 6

Properties of Fiber Reinforced Plastics at Elevated Temperatures with Regard to Fire Resistance of Reinforced Concrete Members 纤维增强塑料在高温下对钢筋混凝土构件耐火性能的影响

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5612

Hendrik Blontrock, L. Taerwe, S. Matthys

引用次数: 76

Strengthening Effect of Reinforced Concrete Elements with Polyacetal Fiber Sheets 聚缩醛纤维片对钢筋混凝土构件的加固效果

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5662

C. Iihoshi, H. Fukuyama, Y. Matsumoto, S. Abe

{"title":"Strengthening Effect of Reinforced Concrete Elements with Polyacetal Fiber Sheets","authors":"C. Iihoshi, H. Fukuyama, Y. Matsumoto, S. Abe","doi":"10.14359/5662","DOIUrl":"https://doi.org/10.14359/5662","url":null,"abstract":"This paper describes the strengthening effect of RC elements with newly developed polyacetal-fiber (PAF) sheets. Typical properties of the polyacetal fiber obtained by drawing polyoxymethylene as a material for strengthening, are high strength, high strain capacity, high resistance to shear force, light weight and easy to handle by preformability. Polyacetal fiber reinforced special epoxy-resin that is optimized for this fiber, offers an outstanding combination of properties not available from steel and other high strength fibers, such as glass, aramid and carbon fibers which are used for the seismic retrofit of concrete structures. The advantages realized were the overall cost savings and strengthening of RC elements in one day, conditionally. Tests conducted to investigate the strengthening effect of concrete elements with polyacetal FRP are introduced in this paper. The loading tests were performed on 14 RC columns. The objective of the lateral loading tests is to investigate the shear and ductility strengthening effect with polyacetal FRP, and to clarify the possibility of this FRP as a material for seismic retrofit. The research work shows the prominent validity of concrete elements post-strengthened with polyacetal fiber for shear strength and ductility.","PeriodicalId":68258,"journal":{"name":"玻璃钢","volume":"60 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"1999-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91485870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Bond Splitting Behavior of Continuous Fiber Reinforced Concrete Members 连续纤维混凝土构件的粘结开裂行为

玻璃钢 Pub Date : 1999-08-01 DOI: 10.14359/5701

T. Sakai, T. Kanakubo, K. Yonemaru, H. Fukuyama

{"title":"Bond Splitting Behavior of Continuous Fiber Reinforced Concrete Members","authors":"T. Sakai, T. Kanakubo, K. Yonemaru, H. Fukuyama","doi":"10.14359/5701","DOIUrl":"https://doi.org/10.14359/5701","url":null,"abstract":"For the purpose of investigating the bond splitting behavior of continuous fiber reinforced concrete (CFRC) members, two series of investigations were conducted. The first series was performed in order to obtain the local bond behavior in the case of splitting failure of the concrete over members with or without lateral reinforcements. For specimens without lateral reinforcement, test results show that the bond splitting strength is not influenced by the Young's nodulus of reinforcement and that it is approximately proportional to the thickness of the cover concrete. On the other hand, for specimens with lateral reinforcement, the local bond splitting strength is greater than the case where there is no lateral reinforcement. The strength is also dependent of the mechanical property of the lateral reinforcement and is determined solely by the thickness of concrete cover. For both types, a new relationship between the bond stress and the slip reinforcements is proposed. The second series was an analytical study to investigate the average bond behavior of CFRC members, which had several bond lengths and Young's moduli. Analytical results show that in the case of large bond lengths, the analytical bond splitting strength is inversely proportional to the bond length and is clearly influenced by the Young's modulus of the reinforcement. It is considered that continuous bond failure from the loaded end causes a remarkable decrease in the bond strength especially for large bond lengths and low Young's moduli.","PeriodicalId":68258,"journal":{"name":"玻璃钢","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1999-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84666276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16