Experimental validation of a theoretical model for flexural modulus of elasticity of thin cement composite

Reliability Analysis of Reinforced Concrete Slab Bridges

“…3a and indicate that the reliability index β ranges from 2.6 to 3.0 for the cases involving single lane bridges and is slightly below 3.5 for the cases involving twolane slab bridges. The results of the single lane concrete bridges reflect reliability levels that fall short of the target reliability index of 3.5 that was set by AASHTO LRFD [7]. On the other hand, the results of the two-lane bridges are closer to the target reliability level.…”

“…(1) (LRFD) requires knowledge about the nominal values of the bending moments due to dead load, live load, and impact load. The nominal bending moment due to dead loads includes the effects of the dead load coming from the slab's own weight (DC) and the weight of the wearing surface above it (DW) [5,7]. To determine the stress due to the own weight of the slab, the thickness of the slab was multiplied by the unit weight of concrete (0.145 kcf as per AASHTO LRFD, table 3.5.1-1).…”

Deflection Ductility of Slabs Made of Hybrid Mesh-And-Fibre-Reinforced Cementbased Composite

“…Flexural tests have been conducted in line with the Research Objectives identified in Section 2.1, and the load-deflection and ductility of SMRCC and HMFRCBC slabs has been evaluated [3], [5], [10][11][12] [ [19][20][21]. The flexure loading test was conducted on the simply supported slab specimens with a span length of 600 mm and loaded at one-third and two-third points (200 and 400 mm from slab support ends) through a spreader beam (as shown in Fig.2), thereby providing a pure bending in the central moment region of the slab.…”

“…The flexural load and the mid-point deflection of the slab elements were determined using a load cell and a linear variable differential transducer (LVDT), respectively [29][30]. The flexural loading setup (shown in Fig.2) with a four point bending fixture arrangement eliminating extraneous deformations related to seating, twisting, or support settlements and specimen rotations [10][11][12], [19][20][21][22], [31] was fabricated for the test in line with the JCSE standards [32] and ASTM code provisions [33].…”

“…Deflection ductility of a structural element (slab, beam) is determined by experiments employing simple flexural tests [17][18] based on mid-span deflection [19][20][21]. Previous studies [1], [5], [10][11][12], [22][23] have shown that deflection ductility behavior is characterized by the ability to sustain higher levels of loading after the first cracking while undergoing a large deformation [17].…”