scholarly journals Investigating strut and tie model in deep beams

2021 ◽  
Author(s):  
Laleh Abousaeidi
Keyword(s):  
Structural Member ◽  
Rational Approach ◽  
Deep Beam ◽  
Related Research ◽  
Strut And Tie ◽  
Truss Model ◽  
Linear And Nonlinear ◽  
Complex Structural ◽  
Strut And Tie Model ◽  
Abaqus Software

The Strut-and-Tie model (STM) approach evolves as one of the most useful design methods for shear critical structures and for other disturbed regions in concrete structures. The model provides a rational approach by representing a complex structural member with an appropriate simplified truss model. The literature review showed that there is no single unique STM for most design situations encountered. This report summarizes the STM approach and related research as well as the results of linear and nonlinear analysis of a deep beam using SAP2000 and ABAQUS Software.

scholarly journals Investigating strut and tie model in deep beams

2021 ◽  
Author(s):  
Laleh Abousaeidi
Keyword(s):  
Structural Member ◽  
Rational Approach ◽  
Deep Beam ◽  
Related Research ◽  
Strut And Tie ◽  
Truss Model ◽  
Linear And Nonlinear ◽  
Complex Structural ◽  
Strut And Tie Model ◽  
Abaqus Software

The Strut-and-Tie model (STM) approach evolves as one of the most useful design methods for shear critical structures and for other disturbed regions in concrete structures. The model provides a rational approach by representing a complex structural member with an appropriate simplified truss model. The literature review showed that there is no single unique STM for most design situations encountered. This report summarizes the STM approach and related research as well as the results of linear and nonlinear analysis of a deep beam using SAP2000 and ABAQUS Software.

scholarly journals STRUCTURAL BEHAVIOR OF PILE CAP 3 PILE WITH EKSENTRIC LOAD DESIGNED USING STRUT AND TIE MODEL WITH NUMERICAL METHOD

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Panji Ginaya Taufik
Keyword(s):  
Conventional Method ◽  
Vertical Load ◽  
Eccentric Load ◽  
Strut And Tie ◽  
Model Method ◽  
Truss Model ◽  
Stress Trajectory ◽  
Pile Cap ◽  
The Difference ◽  
Strut And Tie Model

Pile cap is a structure to distribute load from the upper structure to the sub structure. Often the planning of the pile cap is approached as a two way slab or beam with pile as restrain, by consider the bending and shear separately. As is the case with conventional methods that consider 1-way shear, 2-way shear, and bending separately. The strut and tie model can be used as an alternative method in designing a pile cap, by approaching the stress trajectory with the truss model. In this study, a pile cap will be designed using the conventional method and the strut and tie model, the pile cap with 3 pile cap and an eccentric load. Then the results are tested numerically using Abaqus to determine the difference in behavior. The main reinforcement results from the strut and tie model method are more evenly stressed than the conventional method, also the vertical load needed to achieve the main reinforcement yield stress strut and tie model (1100 kN) is greater than the conventional method (900 kN).

Study on Mechanical Behaviors and Calculation of Shear Strength of Steel Truss Reinforced Concrete Deep Beams

2011 ◽  
Vol 243-249 ◽  
pp. 514-520
Author(s):  
Chun Yang ◽  
Ming Ji He ◽  
Jian Cai ◽  
Yan Sheng Huang ◽  
Yi Wu
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Experimental Investigations ◽  
Deep Beam ◽  
Deep Beams ◽  
Steel Reinforced Concrete ◽  
Strut And Tie ◽  
Steel Truss ◽  
Mechanical Performances ◽  
Strut And Tie Model

Based on strut-and-tie model (STM) in deep beams, steel truss reinforced concrete (STRC) deep beam was developed. Experimental investigations of mechanical performances of STRC deep beams were carried out, and results show that STRC deep beam is of high ultimate bearing capacity, large rigidity and good ductility; Strut-and-tie force transference model is formed in STRC deep beams, and loads can be transferred in the shortest and direct way. Then Steel reinforced concrete (SRC) strut-and-tie model (SSTM) for determining the shear strength of STRC deep beams is proposed. The contribution of SRC diagonal strut, longitudinal reinforcements, stirrups and web reinforcements to the shear strength of STRC deep beams are determined with consideration of softened effects of concrete, and for safe consideration, superposition theory is employed for SRC struts. Computer programs are developed to calculate the shear strength of STRC deep beams and verified by experimental results.

scholarly journals Study on an Optimal Strut-And-Tie Model for Concrete Deep Beams

2019 ◽  
Vol 9 (17) ◽  
pp. 3637
Author(s):  
Haitao Chen ◽  
Lai Wang ◽  
Jitao Zhong
Keyword(s):  
Carrying Capacity ◽  
Engineering Application ◽  
Load Carrying Capacity ◽  
Deep Beam ◽  
Structural Members ◽  
Deep Beams ◽  
Strut And Tie ◽  
Load Carrying ◽  
Strut And Tie Model ◽  
Reinforcement Design

The optimal strut-and-tie models (STMs) of two typical irregular concrete deep beams were constructed using evolutionary structural optimization and compared with those of previous studies. The reinforced concrete deep beam specimens were cast according to the reinforcement designs guided by different STMs. Eight irregular concrete deep beam specimens were experimentally investigated under stepped loading, and the differences in the amount of steel used, the load-carrying capacity, and the failure pattern of the different specimens were analyzed. The results show that the optimal STMs proposed in this study have significant advantages in terms of cost-effectiveness and can simultaneously ensure the load-carrying capacity, delay the crack propagation of irregular concrete deep beams, and reduce the amount of steel used in structural members. Therefore, they have an important engineering application value for the reinforcement design of irregular concrete deep beams.

Design of shear reinforcement for thick plates using a strut-and-tie model

2010 ◽  
Vol 37 (2) ◽  
pp. 181-194 ◽  
Author(s):  
H. Marzouk ◽  
E. Rizk ◽  
R. Tiller
Keyword(s):  
Shear Failure ◽  
Punching Shear ◽  
Shear Behaviour ◽  
Rational Approach ◽  
Concrete Slabs ◽  
Shear Reinforcement ◽  
Lower Section ◽  
Strut And Tie ◽  
Shear Cracking ◽  
Strut And Tie Model

The strut-and-tie method is a rational approach to structural concrete design that results in a uniform and consistent design philosophy. A strut-and-tie model has been developed to model the punching-shear behaviour of thick concrete plates. This model provides a quick and simple approach to check the punching-shear behaviour. Thick concrete slabs (250–500 mm) without shear reinforcement can exhibit brittle shear failure under a central force and an unbalanced moment. Shear reinforcement has proven to be very effective in preventing such failures. The developed strut-and-tie model has also been used to evaluate the minimum shear reinforcement required to prevent brittle shear failure of two-way slabs in the vicinity of concentrated loads. The strut-and-tie model for symmetric punching consists of a “bottle-shaped” compressive zone in the upper section of the slab depth, leading to a “rectangular-stress” compressive zone in the lower section of the slab depth. Inclined shear cracking develops in the bottle-shaped zone prior to failure in the lower zone. Cracking in the bottle-shaped zone is related to the splitting tensile strength of concrete.

scholarly journals PERENCANAAN ULANG BALOK BETON BERTULANG PADA GEDUNG RUSUNAWA UMM DENGAN METODE STRUT AND TIE

2013 ◽  
Vol 9 (2) ◽  
Author(s):  
Dona Dwi Fitrianti ◽  
Zamzami Septiropa ◽  
Erwin Rommel
Keyword(s):  
High Rate ◽  
Deep Beam ◽  
Reinforced Concrete Structure ◽  
Beam Structure ◽  
Strut And Tie ◽  
The Face ◽  
Reaction Forces ◽  
Concentrated Loading ◽  
Strut And Tie Model

Deep beam is the reinforced concrete structure, which has loads like normal beam, but has acomparatively high rate / width of a large, with clean span of Ln equal to or less than four times theoverall member height (h) or twice effectively depth beam (2d ) from the face of support withconcentrated loading. Strut and Tie Model (STM) is a method used to find the balance between loadand reaction forces in the concrete and steel.Redesign on Rusunawa beams using deep beam structure that consists of, beam 0.9 mx0,3mwith length 6.8 m that loaded of concentrated loading and deep beam 1.3 mx0, 4m by 4.2 meterslong that uniformly distributed loading. quality of concrete is used 25 Mpa and the quality of Steel350 MpaFrom the results of planning by using Strut and Tie Model (STM), obtained main flexurereinforcement of 6.8 meters is 4D19 for tensile bar and 5D19 for assembling bar. and Ø8- 160mmfor horizontal and vertical stirrups. As for the deep beam spans 4.2 meters, obtained flexurereinforcement is 5D20 for tensile and assembling bar and Ø8 - 220.2 mm for horizontal and verticalstirrups.Keywords: Deep beam, Strut and Tie method

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