scholarly journals 240) Experimental Research on Ultimate Load Design of Shell Roofs (Part 4)(Civil Engineering)

1956 ◽  
Vol 54 (0) ◽  
pp. 329-332
Author(s):  
Wataru Kato ◽  
Akira Enami
Keyword(s):  
Experimental Research ◽  
Ultimate Load ◽  
Civil Engineering

scholarly journals Properties Of Ferro-Geopolymer Mortar Slab Panels

2019 ◽  
Vol 8 (12) ◽  
pp. 1635-1641
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Experimental Research ◽  
Ultimate Load ◽  
Flexural Behavior ◽  
Double Layers ◽  
Fine Aggregate ◽  
Binder Ratio ◽  
Naoh Solution ◽  
Concrete Target

The purpose of this experimental research is to study the flexural behavior of Ferro-Geopolymer slab panels. Initially the ratio of binder to fine aggregate (1:2, 1:2.5, 1:3) and the ratio of Na2SiO3/ NaOH solution (2.5) is considered. The different combination of Fly ash and GGBS were considered. Ratio of alkaline liquid to binder ratio is fixed as 0.45. The Geopolymer mortar mix that gives compressive strength nearly equal to M20 grade concrete target mean strength was used to cast Ferro-Geopolymer slab panels. A slab of size (1000X1000X30) mm were cast of both ferrocement and Ferro-Geopolymer slab panels with two types of mesh were used such as square woven and square welded with single and double layers. Based on the results of slab load vs deflection of both types of meshes were compared from the characteristics of such as first crack load and ultimate load.

Study on Flexural Performance of RC Beams Strengthened with Bonded Prestressed CFL

2014 ◽  
Vol 578-579 ◽  
pp. 1338-1342
Author(s):  
Jin Lin Huang ◽  
Pei Yan Huang ◽  
Jin Hui Xie
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
Ultimate Load ◽  
Static Load ◽  
Rc Beam ◽  
Rc Beams ◽  
Load Bearing ◽  
Yield Load ◽  
Flexural Performance ◽  
Flexural Bearing Capacity

Based on experimental research and calculation theory of flexural bearing capacity, a method for calculating the ultimate load bearing of normal section member strengthened with prestressed CFL is proposed. Static load experimental results of two beams show that when prestress level is 20%, the cracking load and yield load of RC beams strengthened with prestressed CFL are 37.5% and 39.3% respectively. It is larger than that of RC beam strengthened with nonprestressed CFL.

Experimental Research on Hysteretic Behavior of L-Shaped Columns with HRB500 Reinforcement

2013 ◽  
Vol 275-277 ◽  
pp. 947-950
Author(s):  
Kun Liu ◽  
Jing Xian Tian ◽  
Yan Yan Li
Keyword(s):  
Energy Dissipation ◽  
Cyclic Loading ◽  
Experimental Research ◽  
Ultimate Load ◽  
Hysteretic Behavior ◽  
Energy Dissipation Capacity ◽  
Low Cyclic Loading ◽  
Damage Characteristic

Three L-shaped columns with HRB500 reinforcement were tested under low cyclic loading. The effect of stirrup ratios on damage characteristic, hysteretic characteristic, rigidity degradation and energy dissipation capacity was analyzed to research the hysteretic behavior of L-shaped columns with HRB500 reinforcement. The result shows that the damage characteristic and the hysteretic characteristic of L-shaped columns with HRB500 reinforcement are improved with the increase of stirrup ratios. The energy dissipation capacity of L-shaped column was also enhanced after ultimate load with the increase of stirrup ratios.

Study of Fly Ash in Making Cementitious Composites

2015 ◽  
Vol 806 ◽  
pp. 127-134
Author(s):  
Dragica Jevtić ◽  
Dimitrije Zakić ◽  
Aleksandar Savić ◽  
Veis Šerifi
Keyword(s):  
Fly Ash ◽  
Experimental Research ◽  
Civil Engineering ◽  
Plain Concrete ◽  
Building Industry ◽  
Cementitious Composites ◽  
Self Compacting Concrete

Applications of fly ash in building industry have very important and relevant problems of origin which are discussed in this paper. Authors have performed tests on mortar, plain concrete and Self Compacting Concrete (SCC) specimens. Experiments showed satisfactory results concerning possible application of fly ash as admixture for cementitious composites. Experimental research was conducted in the Laboratory for materials at the Faculty of Civil Engineering, University of Belgrade.

Experimental Analysis of Strengthening of Dapped-End Beams

2016 ◽  
Vol 722 ◽  
pp. 241-246
Author(s):  
Jiří Rymeš ◽  
Petr Štemberk ◽  
Alena Kohoutkova
Keyword(s):  
Reinforced Concrete ◽  
Experimental Research ◽  
Ultimate Load ◽  
Plain Concrete ◽  
Transport Infrastructure ◽  
Small Scale ◽  
Construction Technology ◽  
Load Bearing Capacity ◽  
Worst Case ◽  
Prestressing Force

Technology of precast reinforced concrete finds its application in construction of buildings as well as transport infrastructure. Placement of a dapped-end beam on a corbel is one of the typical details for this construction technology. Designing of a dapped-end is crucial for the whole beam because any potential crack decreases the overall stiffness of the beam and can cause a collapse of the whole structure in the worst case. This paper presents results of an experimental research which was performed on a set of 6 small-scale dapped-end beams. Two different ways of prestressing were applied to experimental specimens and their ultimate-load bearing capacity were compared with plain concrete samples and with reinforced concrete samples. The results of this work suggest that horizontal prestressing technique is more efficient than vertical prestressing technique if the same prestressing force is applied.

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