Experimental study of RC deep beams with opening and FRP composites installed by means of EBR and EBROG methods

被引：27

作者：

Arabzadeh, Abolfazl ^{[1
]}

Karimizadeh, Hamid ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Civil Engn, POB 14155-143, Tehran, Iran

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 208卷

关键词：

RC deep beam; Opening; CFRP composites; EBR method; EBROG method; Monotonic loading; SHEAR-STRENGTH; TIE MODEL; BEHAVIOR; NSM; REINFORCEMENT; OPTIMIZATION; EFFICIENCY; SHEETS; SPAN;

D O I：

10.1016/j.conbuildmat.2019.03.055

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Deep concrete beams are the structural members that have different behaviors compared with normal beams. The high depth of these beams has made them favorable for placing the openings, which results in decreased load bearing capacity. This study utilizes the CFRP sheets to compensate the weakness arisen from the created openings. To this end, 10 deep beams with 10 x 50 x 120 cm dimensions, each having one or two circular openings with 20 cm diameter placed in both symmetrical and asymmetrical order, are constructed and undergone a three-point monotonic bending. The Externally Bounded Reinforcement (EBR) and Externally Bounded Reinforcement On Grooves (EBROG) methods have been utilized to install the FRP sheets in three configurations being wrapped around, vertical, and inclined. The results have shown the superiority of EBROG method as well as the efficiency of the inclined orientation of strengthening sheets in increasing the load bearing capacity. (C) 2019 Published by Elsevier Ltd.

引用

页码：780 / 791

页数：12

共 41 条

[1] A. Committee, 2014, BUILD COD REQ STRUCT, P519
[2] [Anonymous], 2012, THESIS
[3] Arabzadeh A, 2001, IRAN J SCI TECHNOL, V25, P115
[4] Arabzadeh A., 2009, SIMPLE STRUT AND TIE
[5] Arabzadeh A., 1996, 2 INT C CIV ENG COMP
[6] Barros J.A. O., 2013, ASSESSMENT EFFECTIVE
[7] Efficiency of CFRP NSM strips and EBR plates for flexural strengthening of RC beams and loading pattern influence
Bilotta, Antonio
Ceroni, Francesca
Nigro, Emidio
Pecce, Marisa
[J]. COMPOSITE STRUCTURES, 2015, 124 : 163 - 175
[8] Repair of reinforced concrete deep beams using post-tensioned CFRP rods
Burningham, Clayton A.
Pantelides, Chris P.
Reaveley, Lawrence D.
[J]. COMPOSITE STRUCTURES, 2015, 125 : 256 - 265
[9] Behaviour of concrete deep beams with openings and low shear span-to-depth ratio
Campione, Giuseppe
Minafo, Giovanni
[J]. ENGINEERING STRUCTURES, 2012, 41 : 294 - 306
[10] Investigation of a New Strengthening Technique for RC Deep Beams Using Carbon FRP Ropes as Transverse Reinforcements
Chalioris, Constantin E.
Kosmidou, Parthena-Maria K.
Papadopoulos, Nikos A.
[J]. FIBERS, 2018, 6 (03):

← 1 2 3 4 5 →