Experimental research on the bearing capacity of polyurethane foam sandwich concrete wall-board

2010 ◽  
Author(s):  
Yi-sheng Su ◽  
Zong-ping Chen ◽  
Xiao-jun Ke ◽  
Guo-hong Xiong
Keyword(s):  
Bearing Capacity ◽  
Polyurethane Foam ◽  
Experimental Research ◽  
Concrete Wall

Experimental Research on Compressive Strength of Pumice Concrete and Volcanic Concrete Wall

2014 ◽  
Vol 919-921 ◽  
pp. 1801-1804 ◽  
Author(s):  
Li Jun Dou ◽  
Min Zhang ◽  
Ming Yu Xu
Keyword(s):  
Compressive Strength ◽  
Bearing Capacity ◽  
Experimental Research ◽  
Residential Building ◽  
Masonry Structure ◽  
Experimental Results ◽  
Concrete Wall

Pumice concrete and volcanic concrete used in low-rise rural residential building more and more. In order to better realize the pumice concrete wall and cinder concrete wall compressive strength, respectively to make three slices of pumice concrete wall and three slices of cinder concrete wall, wall compressive experiment was carried out. The experimental results showed that the compressive strength of pumice concrete wall and volcanic concrete wall meet the requirements of the bearing capacity of masonry structure.

Test of Fire Response of a Profiled Sheet-Ceramsite Concrete Composite Floor

2011 ◽  
Vol 255-260 ◽  
pp. 255-258
Author(s):  
Xin Tang Wang ◽  
Hai Jiang Wang ◽  
Ming Zhou ◽  
Yao Ji
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
Experimental Results ◽  
Great Change ◽  
Fire Response ◽  
Fire Load ◽  
Distributed Load ◽  
Bending Capacity ◽  
Fire Characteristics

For study of the post-fire characteristics of the profiled sheet-ceramsite concrete composite floor (noted as PSCCF) subjected to fire load, the experimental research on post-fire bearing capacity of a PSCCF after fire is carried out. Based on the experimental results, effect of the fire on post-fire bearing capacity of the profiled sheet-ceramsite concrete composite floor is discussed, and the failure phenomenon and mechanism are analyzed. It is shown that the failure form of the profiled sheet-ceramsite concrete composite floor after fire has great change compared with the floor not subjected to fire load, but the composite floor subjected to fire still exhibits higher bending capacity, and the ultimate value of the equivalent distributed load is up to 25kN/m2, which may be used as basis of strengthening and repairing of the profiled sheet-ceramsite concrete composite floor after exposure to fire.

Mechanical Performance between the Embedded Steel Plate and the Concrete in Composite Shear Walls

2013 ◽  
Vol 742 ◽  
pp. 56-61 ◽  
Author(s):  
Wan Lin Cao ◽  
Hong Ying Dong ◽  
Wen Jiang Zhang ◽  
Jian Wei Zhang
Keyword(s):  
Bearing Capacity ◽  
Work Performance ◽  
Steel Plate ◽  
Mechanical Performance ◽  
Shear Walls ◽  
Concrete Wall ◽  
High Rise ◽  
Concrete Plate ◽  
Shear Bearing Capacity ◽  
Composite Shear

In order to strengthen the co-work performance between the steel plate and concrete, the anchorage construction of arrayed studs were welded on both sides of the plate according to a super high-rise building in Beijing. Eighteen specimens of embedded steel plate concrete shear walls with arrayed studs were tested by pushing out under monotonic loading in this paper. Some parameters, such as the thickness of the concrete wall, the thickness of steel plate, the diameter, the length and the amount of the studs and the rate of reinforcement for distributing bars in the walls were considered. The shear bearing capacity, load-slip relationship, strains of the steel plate and studs, mechanical properties and failure mode were analyzed. The effect of stud layout on the coordinate work of the concrete plate was studied. Results show that the shear bearing capacity is obviously improved by using smaller diameter studs or decreasing the distance between studs when the total area of studs is kept unchanged. The thickness of the steel plate has almost no effect on the shear bearing capacity. The ratio of the length to the diameter of the studs should be not less than 4. A simplified mechanics calculated method to estimate the shear bearing capacity of this kind of shear wall was put forward. And the calculated results are in good agreement with the experimental results.

Experimental Research on Short Compression Column of the Shale Ceramisite Concrete

2011 ◽  
Vol 366 ◽  
pp. 272-275
Author(s):  
Wei Jun Yang ◽  
Ying Jie Zhou ◽  
Cong Cong Meng
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
Plane Section ◽  
Load Bearing ◽  
Normal Section ◽  
Ordinary Concrete ◽  
Short Column ◽  
Short Columns

In order to study the force performance of the short compression column of the Shale ceramisite concrete, the article have research the axis and eccentric of the eight Shale concrete rectangular short columns((l0/b≤4). As the article reach the component is divided into damage caused by pressure and destruction of tension, while it’s contingency rather than the ordinary concrete and plasticity development are shorter ; the bearing capacity of normal section by shale ceramisite Concrete is greater than specification value, it satisified with the requirement of structural load-bearing; Shale concrete short column under pressure and the strain meet a certain section of the plane-section assumption in the process of loading.

Lattice Concrete Wall Structure Optimization and Numerical Analysis

2011 ◽  
Vol 71-78 ◽  
pp. 1628-1632 ◽  
Author(s):  
Xian Hong Meng ◽  
Chan Fang Zhou ◽  
Jing Hai Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Sound Insulation ◽  
Wall Structure ◽  
Optimized Design ◽  
Concrete Wall ◽  
Element Analysis ◽  
New Energy ◽  
Deformation Ability

Polystyrene formwork of lattice concrete wall is a set of lightweight, insulation, sound insulation, fireproof, bearing multi-function in one of the "EPS new energy-saving" wall structure system. Through the polystyrene formwork structure forms of optimized improvement built in construction process of collapse produced high wall plate phenomenon. Do an axial compression ratio of 0.2 lattice specimens of reinforced concrete shear wall in axis pressure and reciprocating level forces test. The damage form of that wall for wall bottom beam-column central cross core ring crack and appear "X" type crack and are crushed. The mesh wall formed strong vertical limb and weak horizontal limb，belongs to the ductility structure , and has more yield , and energy dissipation capacity , and wall overall performance is strong , and avoid brittle failure , and has good ductility、deformation ability and bearing capacity of the characteristics of big .The finite element analysis and experimental results indicated that the ultimate bearing capacity of the wall are the same. For new formworks do wall by finite element analysis, in do not affect its aseismic capacity premise that wall structure forms are optimized design.

The Experimental Research and Contrastive Analysis on the Attachments of Semi-Rigid Nodes in the Beam-Column T-Typed Member and End Plate of Steel Frame

2011 ◽  
Vol 243-249 ◽  
pp. 1163-1167
Author(s):  
Zhen Xing Gao ◽  
Ling Xu
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
Steel Structures ◽  
Steel Frame ◽  
Contrastive Analysis ◽  
Experimental Basis ◽  
End Plate ◽  
The Ideal ◽  
Design And Application

Based on the connection tests of the semi-rigid nodes in the beam-column T-typed member and end plate of steel frame, this paper analyzes the failure phenomena, stiffness, bearing capacity and flexibility of two types of attachments. And according to the tests results, it compares the two types of attachments each other and proposes that T-typed member is a better type of attachment on its bearing capacity and flexibility. Therefore, it provides the experimental basis for the ideal design and application of attachments among the semi-rigid nodes in steel structures.

Experimental Research on Load-Bearing Capacity of Frame Columns with Construction Joint under Low-Cyclic Reversed Loading

2013 ◽  
Vol 351-352 ◽  
pp. 363-366
Author(s):  
Xi Kang Yan ◽  
Cheng Dong ◽  
Pei Chen ◽  
Kang Ma
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Construction Joint ◽  
Axial Compression Ratio ◽  
The Third ◽  
Simple Processing ◽  
Reversed Loading ◽  
Crack Position

In this paper,in order to study the load-bearing capacity of frame columns with construction joint under low-cyclic reversed loading, nine specimens were made, divided into three groups.Every group had three specimens, the first were made without construction joint, the second had fine processing construction joint, the third had simple processing construction joint. The three groups were loaded in axial compression ratio of 0.23,0.34,0.46 respectively.The results show that the influence of different processing with construction joint to crack position ultimate bearing capacity,skeleton curves.

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