Web crushing strength of reinforced concrete beams with …
This paper reports the effect of pre-existing cracks on the web crushing strength of reinforced concrete beams. Two experimental series were conducted. The …
Web crushing strength of reinforced and prestressed concrete …
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principle variables of the test specimens are the ratio of yield force in the prestressed steel and the area of vertical stirrups. The test strengths are compared with the upper limit on shear strength given by the ACI Building Code, the Australian ...
WEB CRUSHING STRENGTH OF REINFORCED AND PRESTRESSED CONCRETE BEAMS
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principal variables of the test specimens are the ratio of yield force in the prestressed steel to yield force in the nonprestressed steel and the area of vertical stirrups. The test strengths are compared with the upper limit on shear strength given ...
Web Crushing Strength of Reinforced Concrete Beams with …
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principal variables of the test specimens are the ratio of yield force in the prestressed steel to ...
(PDF) Numerical Analysis of Out-of-Plane Crushing of Reinforced …
The crushing characteristics and energy absorption of reinforced every other ribbon (R1-HC) honeycombs were higher than those of ordinary honeycombs (R0-HCThe crushing force, average plateau force ...
Web Crushing of Reinforced Concrete Structural Walls
DOI: 10.14359/10679. Date: 5/1/1984. Abstract: Results of an experimental investigation of isolated reinforced concrete structural walls subjected to inelastic load reversals are discussed and evaluated. Walls subjected to significant inelastic deformations and with strengths limited by concrete crushing of the web after flexural yielding are ...
Gradual Crushing of Steel Reinforced HPFRCC Beams
Notably, crushing is an important load-reduction mechanism for reinforced HPFRCC flexural members that fail in a ductile mode, i.e., failure after gradual strain hardening of the steel ...
Crushing behavior optimization of octagonal …
Crushing behavior optimization of octagonal lattice-structured thin-walled 3D printed carbon fiber reinforced PETG (CF/PETG) composite tubes under axial loading ... The present study deals with designing and developing thin-walled carbon fiber (CF) reinforced PETG (polyethylene terephthalate glycol) composite tubes with octagonal …
Axial crushing force of externally fibre-reinforced metal tubes
Abstract Based on the classical Alexander solution for the axial collapse of bare metal tubes, a theoretical model is presented to predict the mean crushing force of arbitrarily fibre-reinforced metal tubes with a ring collapse mode. The derived mean crushing force and length of the local folding wave are more reasonable and are in better agreement …
Web crushing strength of reinforced and prestressed …
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principle variables of the test specimens are the ratio of yield force in the prestressed steel and the area of vertical stirrups. The test strengths are compared with the upper limit on shear strength given by the ACI Building Code, the Australian ...
Web Crushing of Reinforced Concrete Structural Walls
Web Crushing of Reinforced Concrete Structural Walls. Authors: Oesterle R. G. Aristizabal-Ochoa J. D. Shiu. Corley W. G. Abstract. Results of an experimental …
Shear response of reinforced concrete deep beams with and without web
Reinforced concrete deep beam (RCDB) analysis is frequently complex, and the presence of openings alters the behavior and may result in early cracking even at service load. It is thus critical to provide a method for reducing the effect of the disturbance offered by this opening to improve the performance of the beam. An experimental …
Influence of diagonal web reinforcement on cyclic …
The conventionally reinforced wall failed due to web crushing with an abrupt drop in load capacity, whereas the walls reinforced with diagonal web reinforcement failed in a more ductile mode. Test results clearly indicate that the diagonal web reinforcement reduces the shear and sliding displacement components. The specimens with diagonal …
Web-crushing strength of I-shaped concrete beams with …
Web shear capacity of FRP-reinforced beams was smaller than that of beams with steel stirrups. The effect of all considered variables on the web-crushing strength of FRP-reinforced beams is presented. REFERENCES. 1. F. Abed, A.R. Alhafiz, Compos. Struct. 215
Fabrication and crushing behaviors of braided-textile reinforced …
The -filling effect was revealed by crushing experiments and it was found only the SEA of single-layer tubes can be substantially enhanced when the shell buckling was solidly restrained. Compared with other typical energy absorbers, CFRC braided-textile reinforced tubes have much better SEA. Through the research, a simple, …
SHEAR STRENGTH PREDICTION OF REINFORCED …
Strut-and-tie model for deep beams with web openings. Figure 2. Geometric selection: (a) each node ; (b) section 1; and (c) section 2. We should define the location of node 1, node 2, node 3 and node 4 clearly as show in Fig.2. The location of node 1 and node 2 depend on the depth of compression zone at the section, respectively.
Effect of Transverse Compression on Web-crushing …
transversal reinforcement on the web-crushing strength of reinforced concrete beams. Such study should aim at optimization of the level of web clamping stresses and at development of the method ...
Probabilistic Safety Analysis of Prestressed Concrete
Web-crushing failure in beams is a brittle failure mode as it typically occurs suddenly without warning. In order to ensure ductile shear behaviour, shear strength is limited by the maximum strut capacity equation (web-crushing equation) to prevent the crushing of concrete before the yielding of shear reinforcement.
Lateral compressive behavior of multi-layer lattice-web reinforced
Based on the previous research on the lattice-web reinforced composite panels, Fang et al. [24] proposed a large-scale composite anti-collision system consisting of several large-scale cylindrical segments (Fig. 1).The large-scale cylindrical segment can be manufactured using a vacuum assisted resin infusion process (VARIP) method which has been proved …
Probabilistic Safety Analysis of Prestressed Concrete
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principal variables of the test specimens are the ratio of yield force in the prestressed steel to ...
Mechanical properties of the novel spider-web bionic …
To improve the impact resistance of the honeycomb, a self-similar spider-web hierarchical structure is introduced by adding smaller hexagons to the centers of the primitive cells in the underlying hexagonal network and connecting the vertices of the smaller hexagons to the center points of the cell walls via straight beams. The …
Elevated temperature axial crushing performance of multi …
As shown in Fig. 1, the proposed multi-walled tube reinforced (MWTRF) were designed and prepared, including aluminum column (AF), empty multi-walled tube (EMWT) to explore the axial crushing characteristics at different temperature in this study.The geometric parameters of MWTRF are featured by: the outside diameter d 2, …
Braided-textile reinforced thin-walled conical tubular …
To improve the EA, s have been used to fill thin-walled tubular structures. Guden et al. [16] and Kavi et al. [17] studied the axial crushing properties of fiber reinforced composites filled with aluminum closed-cell s. It is found that filling stabilizes the failure mode, but cannot improve the SEA of the tube.
Strengthening the Structural Behavior of Web Openings in …
The experimental study presented the structural behavior of the deep beams of reinforced concrete (RC) that reinforces the web openings with externally connected …
Web crushing capacity of high-strength concrete structural …
This paper discusses the relationship between concrete strength and web crushing capacity based on results from large-scale tests of thin-webbed structural walls with confined boundary elements. Eight walls with concrete strengths ranging from 39 to 138 MPa (5.6 to 20 ksi) were tested to web crushing failure under cyclic and monotonic …
Reinforced concrete: Jonathan Ochshorn's Structural …
Testing of many reinforced concrete beams has shown that the average stress within the compressive zone is 0.85β 1 fc ', and the resultant location is β 1 c /2 from the face of the concrete beam, as shown in Figure 5.23a. The coefficient β 1 ranges from 0.85 for fc ' ≤ 4000 psi, to 0.65 for fc ' ≥ 8000 psi (Figure 5.24).
A comparative study on the crucial parameters for
This study gave a thorough research concerning the effect of soundless chemical demolition on crushing reinforced concrete shear walls. Experimental results showed that the number of distributed reinforcements played a more significant role in the development of cracks than the reinforcement diameter. Further, the walls with vertical …
Honeytubes: Hollow lattice truss reinforced honeycombs for crushing
Conclusions. Hollow lattice truss reinforced honeycombs (LTRHs), or honeytubes, were designed to combine lattice topology with square honeycombs. Carbon fiber reinforced composite LTRHs were fabricated by hot pressing and interlocking, while the corresponding polymeric counterparts were obtained by a SLA-based 3D .
Gradual Crushing of Steel Reinforced HPFRCC Beams: …
Notably, crushing is an important load-reduction mechanism for reinforced HPFRCC flexural members that fail in a ductile mode, i.e., failure after gradual strain hardening of the steel reinforcement accompanied by gradual HPFRCC crushing.
Web Crushing Capacity of High-Strength …
Over the past 50 years, web crushing capacity of reinforced concrete members has emerged as a primary design concern in three distinct contexts: gravity loading of thin …