The use of high-strength concrete (HSC) to reduce self weight and improve the seismic performance of structures is feasible by incorporating ductile shear failures as a new genre of ductile failure mechanisms. Recent research has demonstrated that structural walls with well-confined boundary elements can sustain shear stress levels considerably higher than currently …
The in-plane crushing behaviors and energy absorption capacities of the intact, damaged, and tube-reinforced damaged panels with different damage sizes in both X 1 and X 2 directions are numerically simulated by using the nonlinear FE method Abaqus/Explicit, and the crashworthiness performances are compared with each other. The validation of ...
Recent research findings indicate that the design of high-capacity shear walls with stable ductile behavior is possible if rational failure modes that can effectively make use of the high strength and crack control properties provided by high-performance concrete are taken into account. The evaluation of dependable limits on the web crushing behavior of high-strength con-crete wall …
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 ...
To solve this problem, engineers have cut openings in the web of composite beams to allow pipeline equipment to pass through the openings, which reduces the floor space occupation, improves space utilization, reduces the floor height, and decreases the project cost [3], [4], [5].However, the steel beam web opening reduces the stiffness and bearing capacity of …
The web crushing rules in EN 1992 are investigated by comparison with tests. Although they give significant increases compared with past practice, they appear to be largely valid within the range of tests. There are, however, some very …
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 loading. These tests clearly demonstrated...
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 loading. Thes...
the clamping stresses of web for increasing its strength. Considering the results of the preliminary tests, there seems to be a need for further study of the effect of external prestressed transversal reinforcement on the web-crushing strength of reinforced concrete beams. Such study should aim at
inelastic web crushing limits for HSC structural walls, eight 1/5-scale cantilever structural walls with design concrete compressive strengths of 34, 69, 103, and 138 MPa [5, 10, 15 and 20 ksi] were tested under cyclic and monotonic loading (Liu et al. 2009). The walls (Fig. 2) consisted of
This report explains the motivation for and the design of hollow rectangular reinforced concrete bridge piers with highly confined corner elements. The problem of web crushing as a possible brittle failure mode for hollow rectangular reinforced concrete piers is introduced. Existing web crushing models are discussed and the need for a flexure shear model of web crushing is …
This study investigates the feasibility of defining new limits for a seldomly considered failure mode that could lead to more slender cross sections with the use of high-strength-concrete (HSC).The possibility of web crushing failure in shear dominated reinforced concrete element rises when the dimensions of the boundary elements become larger ...
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 loading. These tests clearly …
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 ...
damage and failure mechanism like concrete crushing, bar fracture, web crushing and diagonal tension. Other inelastic modes, such as bar buckling, out-of-plane failure and bond-slip were not simulated because of the nature of the limitations of the proposed model. Furthermore, a parametric study was conducted to analyze the sensitivity of the
The effect of axial impact on thin-walled circular tubes, which are reinforced externally by a glass fibre reinforced plastic (FRP) composite, is studied in this paper. The influence of circumferential reinforcement on the static and dynamic crushing behaviour of steel tubes is examined.
crippling involves the failure of pultruded glass fibre reinforced polymer (GFRP) profiles under transverse concentrated loading. The possible failure modes include web buckling, web crushing and web-flange junction failure, which are very different from those of metallic sections, which are isotropic and yield.
The GFRP facings were made of unsaturated polyester resin matrix and (0,90°) and (±45°) orthogonal woven glass fiber fabrics with an average areal weight of 800 g/mm 2 by vacuum infusion molding process, and the approximately 0.6 mm thickness of per layer after curing. The tension, shear, and compression tests were conducted on the GFRP sheets …
An analytical model based on truss analogy is used to evaluate the experimental results and to obtain a design equation that predicts web crushing strength. Web crushing strengths of structural walk are predicted as a function of concrete strength, axial load, and lateral interstory drift.
The paper presents results of theoretical research of effect of transverse compression in a shear span zone on webcrushing strength of I-shaped reinforced concrete beams. The hypothesis of an increase of web shear strength in case of clamping by prestressed external strengthening transversal reinforcement was checked. The principal variable was the level of clamping …
crushing, or diagonal compression, shear failures consist of compression failure of concrete struts formed by diagonal tension cracking in the wall web before yielding of the transverse …
crushing strengths of structural walk are predicted as a function of concrete strength, axial load, and lateral interstory drift. Results of an experimental investigation of isolated reinforced concrete structural walls subjected to inelastic load reversals are discussed and evaluated. Wal.
This paper reports the effect of pre-existing cracks on the web crushing strength of reinforced concrete beams. Two experimental series were conducted. The first series involved the test of four slender beams with large amounts of stirrups. The second series involved the test of five deep beams without transverse reinforcements. In both series, vertical pre-cracks were …
-crushing failure is an undesirable beam failure as it typically occurs suddenly without warning. This paper aims to investigate the reliability and safety performance of prestressed concrete ...
DOI: 10.14359/10298 Corpus ID: 138465551; Cyclic Behavior of Reinforced Concrete Structural Walls with Diagonal Web Reinforcement @article{Sittipunt2001CyclicBO, title={Cyclic Behavior of Reinforced Concrete Structural Walls with Diagonal Web Reinforcement}, author={Chadchart Sittipunt and Sharon L. Wood and Panitan Lukkunaprasit and Pichai …
This paper investigated the static behaviour of glass fibre reinforced polymer (GFRP) built-up hollow and concrete filled built-up beams tested under four-point bending with a span-to-depth ratio ...
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 ...