Experimental Study on Shear Behavior of Combined Aggregate Concrete Beams

2012 ◽  
Vol 166-169 ◽  
pp. 1422-1425
Author(s):  
Yan Kun Zhang ◽  
Hui Liu ◽  
Ze Zao Song
Keyword(s):  
Experimental Study ◽  
Concrete Beam ◽  
Concrete Beams ◽  
Lightweight Aggregate ◽  
Shear Behavior ◽  
Shear Capacity ◽  
Aggregate Concrete ◽  
Design Formula ◽  
Ordinary Concrete

Based on the test，the shear behavior of combined aggregate concrete beams is studied. The results show that combined aggregate concrete beam have similar behavior with ordinary concrete beams, and the shear capacity reduces with the increase of lightweight aggregate. And design formula of the combined aggregate concrete shear capacity is suggested.

Experimental Study on Bond Behavior of Profiled Steel Sheet-Lightweight Aggregate Concrete Composite Slab

2012 ◽  
Vol 594-597 ◽  
pp. 721-724
Author(s):  
Yan Kun Zhang ◽  
Yan Xiao Han ◽  
Ze Zao Song
Keyword(s):  
Experimental Study ◽  
Steel Sheet ◽  
Lightweight Aggregate ◽  
Lightweight Aggregate Concrete ◽  
Aggregate Concrete ◽  
Composite Slab ◽  
Bond Behavior ◽  
Ordinary Concrete ◽  
Relationship Of ◽  
The Relationship

At present, there are much more researches on the ordinary concrete composite slab, and that on the lightweight aggregate concrete composite slab are relatively less. In this paper, the shear-bond behavior of lightweight aggregate concrete composite slab, with the profiled steel sheet YX-76-344-688, which is commonly used in China is studied. Base on experiments, the cracks developing process and its regularities of distribution, the bonding and slipping between profiled sheeting and concrete, the relationship of load and mid-span deflection, ultimate bearing capacity etc. are studied.

Study on shear behavior of reinforced coral aggregate concrete beam

2020 ◽  
Vol 23 (11) ◽  
pp. 2388-2398
Author(s):  
Bo Da ◽  
Hongfa Yu ◽  
Haiyan Ma ◽  
Bo Yu ◽  
Zhangyu Wu ◽  
...  
Keyword(s):  
Failure Mode ◽  
Concrete Beam ◽  
Concrete Strength ◽  
High Strength ◽  
Shear Behavior ◽  
Calculation Model ◽  
Shear Capacity ◽  
Coated Steel ◽  
Ocean Engineering ◽  
Aggregate Concrete

Reinforced coral aggregate concrete beam and reinforced ordinary aggregate concrete beam with different concrete type, concrete strength, and steel type were designed in this study to investigate their shear behavior. The shear behavior of reinforced coral aggregate concrete beam was tested, the failure mode and deflection behavior were studied, and the calculating model for the ultimate shear capacity ( Vcs) of reinforced coral aggregate concrete beam was proposed. Results showed that the failure mode of reinforced ordinary aggregate concrete beam and reinforced coral aggregate concrete beam were basically the same. As the concrete strength increases, the normal section cracking load ( Vcr), inclined section Vcr, and Vcs of reinforced coral aggregate concrete beam increased gradually. Furthermore, Vcr and Vcs of reinforced coral aggregate concrete beam were as follows: 316 stainless steel > common steel > zinc-chromium coated steel > new organic coated steel. For the coral aggregate concrete structure in ocean engineering, in order to prolong its service life, the use of new organic coated steel was suggested. At the same time, the influence of high-strength coral aggregate concrete and stirrup corrosion was comprehensively considered and the calculation model for the Vcs of reinforced coral aggregate concrete beam was presented and was then verified.

scholarly journals Numerical simulation of shear capacity of lightweight aggregate concrete stud connectors

2021 ◽  
Vol 272 ◽  
pp. 02021
Author(s):  
Hao Lin ◽  
Liu Lei ◽  
Li Jian
Keyword(s):  
Finite Element ◽  
Concrete Strength ◽  
Lightweight Aggregate ◽  
Shear Capacity ◽  
Parameter Analysis ◽  
Lightweight Aggregate Concrete ◽  
Aggregate Concrete ◽  
Ordinary Concrete ◽  
Finite Element Software ◽  
Stud Connector

In order to study the mechanical properties of the stud connectors in lightweight aggregate concrete (LWAC), the finite element software ABAQUS was used to establish the push test models of ordinary concrete and LWAC, respectively. Through parameter analysis of 21 models, the influence of different parameters on the shear performance of LWAC stud connector was studied. Among them, concrete strength, stud diameter and stud strength have strong effects. Compared with stud connector in ordinary concrete, the LWAC stud connector enters the elastoplastic working stage earlier, the ultimate slip is slightly larger, the ductility is better, and the shear capacity is about 11% lower. Regression analysis was performed on the finite element calculation results, and the method for shear bearing capacity calculation of the stud connectors in LWAC is given.

Research on the Calculation Method for Diagonal Shear Capacity of Steel Reinforced Lightweight Concrete Beams

2013 ◽  
Vol 724-725 ◽  
pp. 1677-1680
Author(s):  
Huan Jin
Keyword(s):  
Calculation Method ◽  
Lightweight Concrete ◽  
Concrete Beams ◽  
Engineering Application ◽  
Lightweight Aggregate ◽  
Development Trend ◽  
Shear Capacity ◽  
Lightweight Aggregate Concrete ◽  
Aggregate Concrete ◽  
Practical Engineering

Steel reinforced lightweight aggregate concrete structure is a new type of composite structure to meet the building development trend of energy conservation and environmental protection. Based on the shear tests of steel reinforced lightweight concrete beams, according to the specifications of lightweight concrete and steel reinforced concrete, this paper established a design formula for calculating the shear capacity of steel reinforced lightweight concrete beams under the concentrated loads. The results coincided well with the tests. The calculation method is reliable, which can provide theoretical foundations for the practical engineering application of steel reinforced light aggregate concrete beam.

Experimental Study on Flexural Behaviors of All-Lightweight Aggregate Concrete Beams and Slabs

2012 ◽  
Vol 517 ◽  
pp. 398-402 ◽  
Author(s):  
Yan Min Yang ◽  
Hao Zhang
Keyword(s):  
Experimental Study ◽  
Energy Saving ◽  
Concrete Beams ◽  
Lightweight Aggregate ◽  
Main Trend ◽  
Lightweight Aggregate Concrete ◽  
Construction Technology ◽  
Aggregate Concrete ◽  
Concrete Members ◽  
New Type

The use of lightweight and energy saving materials is the main trend of modern building and construction technology. All-lightweight aggregate concrete, which is a new type of lightweight aggregate concrete, not only has all the advantages of light weight concrete but also a lower apparent density of 600kg/m3. At present, the commonly-used energy-saving organic insulation materials include the EPS insulation and polyurethane insulation. The paper presents a new type of all-lightweight inorganic aggregate concrete by replacing organic material, in order to obtain a lightweight, energy-efficient building structure which synthesizes the load-bearing capacity, lightweight and energy-saving. Tests on the flexural behaviors of 11 all-lightweight aggregate concrete beams and 6 slabs were conducted. The effects of steel reinforcement ratio and loading distribution on the flexural and shear behaviors and method to calculate the load carrying capacity were carried out. The feasibility of application of all-lightweight aggregate concrete on multi-story buildings and to replace common reinforced concrete members in bending was discussed. The experimental study in the paper can provide a basis of the lightweight and energy-saving multi-story structure.

Experimental Study on Shear of Reinforced Concrete Beams with High Strength Rebars as Stirrups under Different Shear Span Ratios

2014 ◽  
Vol 578-579 ◽  
pp. 164-167 ◽  
Author(s):  
Peng Li ◽  
Xian Tang Zhang ◽  
Ming Ping Wang
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Concrete Beams ◽  
High Strength ◽  
Reinforced Concrete Beam ◽  
Shear Behavior ◽  
Shear Capacity ◽  
Reinforced Concrete Beams ◽  
Test Results ◽  
Shear Span

To investigate the influence of shear span ratio for the shear behavior of reinforced concrete beam with HRBF500 high strength rebars as stirrups, an experiment was carried out, which included 8 simply supported beams with HRBF500 rebars as stirrups. Under concentrated loads, the crack, deflection, strain of rebars, bearing capacity and failure mode are observed under different shear span ratios. Some comparisons are made between test results and calculated outcome. It shows that the shear span ratio has very important influent on the shear behavior of reinforced concrete beam with HRBF500 high strength bars as stirrups. Formula in code for design of concrete structures can be used to calculate its shear capacity with enough safety.

scholarly journals Shear Behavior of Reinforced Post-Filling Coarse Aggregate Concrete Beams Produced by Creative Construction Process

Buildings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 576
Author(s):  
Jinqing Jia ◽  
Qi Cao ◽  
Lihua Zhang ◽  
Yulong Hu ◽  
Zihan Meng
Keyword(s):  
Coarse Aggregate ◽  
Concrete Beams ◽  
Concrete Strength ◽  
Shear Behavior ◽  
Shear Capacity ◽  
Engineering Practice ◽  
Aggregate Concrete ◽  
Strength Grade ◽  
Shear Span ◽  
Ultimate Shear Capacity

Different from the traditional concrete mixing procedure, the innovative post-filling coarse aggregate concrete (PFCC) reduces the cost of pumping concrete by increasing the coarse aggregate content and reducing the usage of cement. Previous studies have shown that PFCC enhances the compressive strength, elastic modulus, and flexural strength of concrete. In this paper, the shear behavior of 13 post-filling coarse aggregate concrete beams and 3 control beams was tested to determine the relationships between the shear performance of the beam and the post-filling coarse aggregate ratio, concrete strength grade, shear span ratio and stirrup reinforcement ratio. The results showed that the ultimate shear capacity of beam specimen increases first and then decreases with the increase in post-filling coarse aggregate ratio, reaching the maximum at 15% post-filling ratio. The results also indicated that the ultimate shear capacity of the beam increases with the increase in concrete strength grade and stirrup ratio. However, experimental results exhibited that the ultimate shear capacity decreases as the shear span ratio increases. This study provides a reference for the application of post-filling coarse aggregate concrete in engineering practice.

Experimental Study on Flexural Behaviors of All-Lightweight Aggregate Concrete Slabs

2012 ◽  
Vol 535-537 ◽  
pp. 1918-1922
Author(s):  
Yan Min Yang ◽  
Hao Zhang
Keyword(s):  
Experimental Study ◽  
Concrete Slab ◽  
Lightweight Aggregate ◽  
Lightweight Aggregate Concrete ◽  
Concrete Slabs ◽  
Intensity Level ◽  
Story Structure ◽  
Aggregate Concrete ◽  
Ordinary Concrete ◽  
Section Size

In order to study the feasibility that whether the all-lightweight aggregate concrete slabs can be the structural member， we test on 6 pieces of all-lightweight aggregate concrete slabs. The flexural behaviors of all-lightweight aggregate concrete slabs which have the same intensity level and section size is analyzed comparatively under the same mode of action， but different reinforcement situation. The result shows that the all-lightweight aggregate concrete slab has certain bearing capacity and deformation capacity. It can replace the ordinary concrete slab as load-bearing member. The experimental study in the paper can provide a basis of the lightweight and energy-saving multi-story structure.

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