effect of impact load on splice length of reinforcing bars

effect of impact load on splice length of reinforcing bars
JIS G3101 SS400

What is the maximum splice length for reinforcement bars?

Lap splice length not less than 6 in. (152 mm). Increase development lengths by 50% when epoxy coated wire is used, but this increase does not apply to the 6 in. (152 mm) minimum.. Reinforcing bars can also be spliced by welding, mechanical splicing and in some cases end-bearing splicing.See all results for this questionsp.info What factors affect the bond strength of a lap splice?Many parameters affect the bond strength of a lap splice such as: lap length, concrete cover, reinforcement bar diameter, reinforcement ratio, bar relative rib area and transverse reinforcement provided within the lap zone [1].See all results for this questionsp.info What are the advantages of lap splice?Good bond strength of the lap splice with the surrounding concrete reduces the probability of bar slippage or splitting failure before the yielding of reinforcing steel bars.See all results for this questionsp.info How do you determine the length of a lap splice?The length of a lap splice varies with concrete strength, type of concrete, the yield strength (grade) of the reinforcing bars, bar size, bar spacing, concrete cover, and the amount of ties or stirrups. Lap splice lengths are always shown on placing drawings and will be found either in the details, lap charts,...See all results for this question

Effect of Impact Load on Splice Length of Reinforcing Bars ...

Aug 21, 2020 · When impact load is applied to bar splice region, the impact force is transferred to the beam bottom, which causes cover concrete spalling along the bar splice length. Ultimately, the bar bond strength decreases, and the load-carrying …Cited by: 2Publish Year: 2020Author: Hyeon-Jong Hwang, Fan Yang, Li Zang, Jang-Woon Baek, Gao MaEstimated Reading Time: 10 minssp.info Effect of Impact Load on Lap Length of Reinforcements in ...Sep 13, 2020 · Previous studies have shown that impact loads with short duration can increase the material properties of concrete and reinforcing bars in different ratio, which change ductile behavior into brittle behavior in RC structures. As a result, the load transfer from reinforcements to the concrete is important for the structural integrity and ductility of a structure under impact load.Estimated Reading Time: 4 minssp.info (PDF) Effect of impact loading on bar development length ...The test parameters were reinforcing bar diameter, splice length, drop height, and hammer mass. ... the effects of impact load on the performance ... well with the tensile strength of …sp.info The Effect of Splice Length and Distance between …Oct 24, 2018 · measured directly. The contact lap splices with a 150, 200, and 250 mm lap splice length developed approximately 38, 35 and 29% of the theoretical yield load of the reinforcement, respectively. The difference between the mean tensile resistances of …

Development/splice length of reinforcing bars | Request PDF

The objectives of the study were to investigate the effect of silica fume on bond and anchorage characteristics of reinforcing bars in high performance concrete, to study the validity of the upper ...Estimated Reading Time: 11 minssp.info (PDF) Effect of transverse spacing of reinforcing bars in ...These variables - splice length, splice location, and the presence or absence of a reinforcing metal nail plate - were evaluated by comparing their relative effect on post stiffness and strength.sp.info Tension Lap Splice Length of Reinforcing Bars Embedded in ...Jun 01, 2019 · Based on the simple formula adopted by ACI 318-14 , the general expression of the tension lap-splice strength has the following form: (2) f sp = C ∗ f y K1 / f c K 2 where; fps is the tension splice strength; C is the constant of statistical analysis chosen with the purpose of making the average numerical to propose splice strength ratios approximately equal to 1.0; f y …Cited by: 6Publish Year: 2019Author: Hussein Al-Quraishi, Mahdi Al-Farttoosi, Raad AbdulKhudhurCement: 1100sp.info Development/Splice Length of Reinforcing BarsJan 01, 2005 · Title: Development/Splice Length of Reinforcing Bars Author(s): M. Reza Esfahani and M. Reza Kianoush Publication: Structural Journal Volume: 102 Issue: 1 Appears on pages(s): 22-30 Keywords: bond; concrete; development length; reinforcement; rib; splice; transverse reinforcement Date: 1/1/2005 Abstract: This paper presents an equation to …

SPLICES, DEVELOPMENT & STANDARD HOOKS FOR …

The confinement reinforcement criteria allow a reduced lap splice length when reinforcement is provided transverse to lapped bars. Research has found that the transverse, or confinement, reinforcement increases the lap performance significantly, as long as there is at least one No. 3 (M#10) or larger transverse bar placed within the last 8 in. (203 mm) of each end of the lap …sp.info (PDF) splice length of reinforcing bars calculated in ...Just as it is physically impossible to place all concrete in one continuous operation, it is impossible to provide full-length, (PDF) splice length of reinforcing bars calculated in different design codes | navid anupam - Academia.edusp.info EFFECTS OF CONFINEMENT REINFORCEMENT ON BAR …using 200 mm (8-in.) units. Two sets of 25M (No. 8) lap spliced reinforcing bars were placed in each specimen. A lap length of 1200 mm (48 in.) was used for each splice tested in this study. To evaluate the effects of confinement reinforcement on splice behavior, five differentsp.info Effect of Preexisting Cracks on Lap Splice Strength of ...(No. 36) reinforcing bars with splice lengths of 33, 79, and 120 in. (838, 2007, and 3048 mm). RESEARCH SIGNIFICANCE The effect of preexisting cracks on lap splice strength is of serious concern to engineers because development and splice failures are associated with splitting cracks along the plane of the reinforcement.

(PDF) Development Length of Standard Hooked Bar Based …

The effects of column axial load, vertical column reinforcement, side concrete cover, and lateral reinforcement through the joint on the performance of standard hooked bars were studied.sp.info Tensile Strength of Lap Splices in Reinforced Concrete …ability of lap splices with splice length-to-bar-di-ameter (ℓ s/d b) ratios equal to or exceeding 40. In this study conducted at Purdue University, the tensile strength of unconfined deformed-bar lap splices with different lengths was re-exam-ined. The focus was on lap splices with length-to-bar-diameter ratios of 40 or more (ℓ s/d b ≥ 40).sp.info RESEARCH EVALUATION OF REINFORCING BAR LAP …Lap splices in concrete masonry paneIs were tested to investigate the effect of various ... Lap splice length requirements for reinforcing bars in masonry are covered by building codes, however, splice requirements based on strength design methods are not consiste.nt ... bars were subjected to the same load at ali times throughout the testing.sp.info ORCIDEffect of Impact Load on Splice Length of Reinforcing Bars. International Journal of Concrete Structures and Materials 2020 | journal-article DOI: 10.1186 ... Effect of impact loading on bar splice length. 13th International Conference on Shock …

Effect of Embedded Length on Bond Behaviour of Steel ...

study the effect embedded length, it was varied from 3.5d. b. to 4.0 d. b. and then further to 4.5 d. b. for 19 mm diameter steel rein-forcing bars in 40.0 MPa, 50.0 MPa and 60.0 MPa steel fiber reinforced concrete. The results of the experimentation showed that by increas-ing the embedded length, bond strength increased and corre-sponding slip decreased.sp.info The Effect of Splice Length and Distance between Lapped ...The tensile resistance of the lap spliced bars in the double pullout specimens was measured directly. The contact lap splices with a 150, 200, and 250 mm lap splice length developed approximately 38, 35 and 29% of the theoretical yield load of the reinforcement, respectively. The difference between the mean tensile resistances of the three ...Cited by: 3Publish Year: 2014Author: Denise Sanchez Contrerassp.info Behavior of RC beams with tension lap splices confined ...Sep 01, 2018 · It can be seen that when a splice is applied without any transverse reinforcement as in case of beam NC-L30-0T6-V, the ultimate load is reduced by 21.5% compared to the beam without splice and the ductility is much reduced as represented by the area under the load deflection curve as well as the ductility index shown in Table 3. However, …sp.info EFFECT OF SIMULATED CRACKS ON LAP SPLICE …reinforcing bars, the two specimens with lap-spliced No. 11 bars with a 79-in. splice length achieved bar stresses of 62 and 57 ksi. In the presence of a simulated crack in the plane of the reinforcing bars, the three specimens with lap-spliced No. 11 bars with a 120-in. splice length achieved bar stresses of 72, 67, and 69 ksi.

Behavior and Splice Length of Deformed Bars Lapping in ...

This paper discusses the behavior of grouted noncontact lap splices under monotonic tension load. Deformed bars lapped through a grout-filled corrugated duct, and a spiral reinforcement was preembedded in the connection to improve tensile strength of the splice. The experimental results show that bond failure splices are always failed by the pullout of the preembedded bar …sp.info ‪Hyeon-Jong Hwang‬ - ‪Google Scholar‬Effect of Impact Load on Splice Length of Reinforcing Bars HJ Hwang, F Yang, L Zang, JW Baek, G Ma International Journal of Concrete Structures and Materials 14 (1), 1-17 , 2020sp.info (PDF) Nonuniform Bond Stress Distribution Model for ...The use of reinforcing bars with an average relative rib area of 0.1275, an increase from the average value for conventional bars of 0.0727, can provide up to …sp.info The Impact of Corrosion on the Mechanical Behavior of ...Aug 08, 2007 · Furthermore, reinforcing steel bars with more than 10% corrosion indicate a brittle failure (Ref 5-7). An analysis was performed on the effect of the type of welding in corrugated bars of two austenitic stainless steels (low-nickel AISI 204Cu and traditional 304 types) and a duplex stainless steel (SAF 2205 type) versus corrosion behavior (Ref 8). …

Effect of polypropylene fibers on bond performance of ...

Aug 10, 2019 · Adequate bonding between concrete and reinforcing bar is the key parameter to the integrity and proper performance of RC members , , , . The bond strength between reinforcement and concrete is the fundamental concept in determining the development and splice length relationships in code provisions , .sp.info Pre-Qualification of Mechanical Splices for Reinforcing ...Generally, the transfer of load between reinforcing bars is achieved by lap splicing the bars. The load transfer mechanism for lap splicing is by cementitious bond and the effectiveness of lap connections is dependent upon the type of bar and the strength and quality of the concrete. Additionally, as the bars are laid side by side, the load transfer is indirect, whereas mechanical splices provide a dire…See more on ancon.com.ausp.info Effect of Compressive Strength on Bond Behaviour of …Effect of Compressive Strength on Bond Behaviour of Steel Reinforcing Bar in ... corresponding peak load slip increased from 05% to 95%. This increase in bond strength and corresponding peak load ... this study may have a direct impact on development and splice length provisions of high strength fiber reinforced concrete. Keywords ...

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