Sustainable concrete beams experimental test finite element analysis lap-splicedĪdel A. The value c is the smaller of: (1) one-half of the center-to-center spacing of the bars or (2) the concrete cover to the bar plus db / 2. When using high strength steel reinforcing bars (100ksi yield strength), the compression splice length will actually be larger than the tension splice length. A parametric study is carried out using finite elements on considering the following parameters, concrete compressive strength, load type and opening in cross section (hollow section) for weight reduction purposes.The laboratory and numerical results show good agreements in terms of ultimate load and deflection with an average difference of 10% and 15% in ultimate load and deflection respectively. Finite element modeling in three dimensions was carried out for the tested beams using ABAQUS software. This study reveals that the effect of number of spliced bars on the response of beams reinforced with smooth bars is found to be more obvious than deformed one. The sustainable concrete mechanical properties and mix workability were also studied. Tension bars were of 10 mm size with smooth and deformed surfaces in order to investigate the surface nature accompanied with the splice nature. These members were designed to fail in flexure in order to investigate the lap spliced tension bars effect. Concrete clear cover is defined as the cover to the bar being considered. Tension hook development lengths are based on AASHTO Article 5.10.8.2.4. The normal strength sustainable concrete specimens of sizes 1700x150x150 mm with tension reinforcement lap spliced were selected according to testing device length limitations. Tension lap splice lengths are based on AASHTO Article 5.10.8.4.3. The bond between sustainable concrete and spliced steel bars is another important issue. Design Guide on the ACI 318 Building Code Requirements for Structural Concrete DGACI318-19Book.indb 5 5/7/20 1:44 PM. The lap splicing means two bars overlapped in parallel with specified length called the splice length in order to provide the required bond between the two bars. Splice Lengths: One-way Slab System, XLOGLQJ (DPSOH ± HWHUPLQDWLRQ RI. The use of spliced reinforcing bars in sustainable concrete members to manage inadequate bars length is a common practical issue which is may be due to some limitations.
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