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.

Experimental Study of Mechanical Behavior of Concrete Filled Steel Tubular Short Columns after Fire

2010 ◽  
Vol 168-170 ◽  
pp. 674-678 ◽  
Author(s):  
Ming Zhou ◽  
Xin Tang Wang ◽  
Wan Zhen Wang
Keyword(s):  
Mechanical Behavior ◽  
Bearing Capacity ◽  
Test Results ◽  
Fire Load ◽  
Ordinary Concrete ◽  
Short Column ◽  
Short Columns ◽  
Maximum Value ◽  
Bearing Load ◽  
Strength And Ductility

Mechanical behavior and bearing capacity of ordinary concrete filled steel tubular short column (NCSSC) and ceramsite concrete filled steel tubular short column (CCSSC) subjected to fire load are experimentally investigated. Effect of the parameters, such as the maximum value of fire temperatures, fire duration on the strength and ductility of the two types of specimens were especially discussed. The test results show that both of the specimens of NCSSC and CCSSC after fire have higher bearing capacity and better ductility, there was no descent segment in load-displacement curves of the most specimens after the fire load was subjected, and even the case that bearing load increased again after descent segment arose. It was concluded that the maximum response temperature of specimens and fire duration time has great effect on the axial bearing capacity of concrete-filled steel tubular short columns subjected to fire, and there is a turning point of temperature for the influence.

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.

Research of Compression Bearing Capacity of Steel Reinforced Concrete Short Column Replaced by C-BAR

2013 ◽  
Vol 438-439 ◽  
pp. 519-521
Author(s):  
Cheng Zhu Qiu
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Steel Reinforced Concrete ◽  
Short Column ◽  
Reinforcing Bar ◽  
Short Columns

t is essential to study the performance of reinforced concrete short column. In this paper, the main reinforcements and hoopings in short columns were replaced by C-BAR reinforcements, the regularity of reinforcing bar replaced by C-BAR reinforcements was summarized. The results show that the axial compression bearing capacity of concrete short column is increased.

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 Study of Mechanical Behavior of Ceramsite Concrete Filled Steel Tubular Columns Subjected to Fire Load

2011 ◽  
Vol 243-249 ◽  
pp. 1228-1232
Author(s):  
Xin Tang Wang ◽  
Zhi Guo Xie ◽  
Ming Zhou ◽  
Jie Yin
Keyword(s):  
Mechanical Behavior ◽  
Bearing Capacity ◽  
Longitudinal Strain ◽  
Test Results ◽  
Fire Load ◽  
Short Column ◽  
Tubular Columns ◽  
Short Columns ◽  
Maximum Value ◽  
Strength And Ductility

Mechanical behavior of a set of ordinary concrete filled steel tubular short column (note as NCSSC) and ceramsite concrete filled steel tubular short column (note as CCSSC) subjected to fire load are experimentally investigated. Effect of the parameters, such as the maximum value of fire temperatures, fire duration on the strength and ductility of the two types of specimens were especially discussed. The test results show that both of the specimens of NCSSC and CCSSC have higher post-fire bearing capacity and better ductility, there was no descent segment in post-fire load-displacement curves of the most specimens subjected to fire load. It was concluded that the maximum response temperature of specimens and fire duration time has great effect on the axial bearing capacity of concrete-filled steel tubular short columns subjected to fire. The maximum longitudinal strain of specimens of CCSSC is less than the corresponding value of the longitudinal strain of NCSSC.

Experimental Research on Fire Response and Post-Fire Bearing Capacity of Profiled Sheet-Ceramsite Concrete Composite Floor

2010 ◽  
Vol 168-170 ◽  
pp. 679-684
Author(s):  
Xin Tang Wang ◽  
Hai Jiang Wang ◽  
Ming Zhou
Keyword(s):  
High Temperature ◽  
Bearing Capacity ◽  
Experimental Research ◽  
Experimental Results ◽  
Fire Response ◽  
Fire Load ◽  
Indoor Temperature ◽  
Ordinary Concrete ◽  
Fire Characteristics ◽  
Better Than

Compared with ordinary concrete composite floor, profiled sheet-ceramsite concrete composite floor(PSCCF) has the advantages of lighter weight and higher strength, and its resistant fire characteristics is better than ordinary concrete composite floor for stability of characteristics of ceramsite under high temperature. For study of the characteristics of the floor after fire, the experimental research on bearing capacity of the profiled sheet-ceramsite concrete composite floor after fire and the floor not subjected to fire load are further carried out at indoor temperature here. 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 he 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 bearing capacity of it is still higher.

scholarly journals Impact of the fire on the bearing capacity of the ordinary concrete used in reinforced concrete structures in Burundi. History and architecture

Vestnik MGSU ◽  
2021 ◽  
pp. 1567-1572
Author(s):  
Emmanuel Mikerego ◽  
Donatien Nduwimana
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Negative Impact ◽  
Heating Temperature ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Ordinary Concrete ◽  
The Impact

Introduction. This paper presents the results of an assessment of the impact of fire on the bearing capacity of the ordinary concrete, to be taken into account in the rehabilitation of fire-damaged reinforced concrete structures in Burundi. Materials and methods. Experimental samples of the ordinary concrete made respectively of coarse river aggregates and crushed coarse quarry aggregates were prepared and subjected to different heating temperatures (250, 350, 450, 600 and 900 °C) simulating the fire. After natural cooling, experimental samples were subjected to compression test; and diagrams showing the loss of the load-bearing capacity of the ordinary concrete used in reinforced concrete structures in Burundi were drawn. Results. Negative impact of the fire on the load-bearing capacity of the ordinary concrete occurs above of 350 °C of heating temperature. Concrete made of crushed coarse quarry aggregates loses 50 and 78 % of its bearing capacity at around 525 and 900 °C of heating temperature, respectively. Similarly, concrete made of coarse river aggregates loses 50 and 70 % of its load-bearing capacity respectively at 600 and 900 °C of heating temperature. An evaluation curve of the after-fire bea­ring capacity of the concrete used in reinforced concrete structures in Burundi is established. Conclusions. The negative impact of the fire on the load-bearing capacity of the ordinary concrete occurs above of 350 °C of heating temperature. Concretes made of crushed coarse quarry aggregates and concrete made of coarse river aggregates lose 50 % of its bearing capacity at around 525 and 600 °C of heating temperature respectively. Knowing the heating temperature that the fire-damaged reinforced concrete structure has undergone is indispensable in deciding on its demolition or rehabilitation.

Analysis on Bearing Capacity of Axial Compression Short Column of Double Back-to-Back C Steel with Gusset Plates

2014 ◽  
Vol 501-504 ◽  
pp. 523-526
Author(s):  
Ming Chen ◽  
Bo Fan Deng
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Mechanical Performance ◽  
Plate Thickness ◽  
Element Analysis ◽  
Gusset Plates ◽  
Composite Columns ◽  
Short Column ◽  
Plate Spacing ◽  
Short Columns

To study the ultimate bearing capacity of axial compression short column of double back-to-back C steel with gusset plates, the bearing capacity of seven short columns of this section type were analyzed by experiment and finite element analysis, the destroyed form of the composite columns were understood, the degree of influence of C steel type, plate thickness and plate spacing on mechanical performance of composite columns were got, some basis for the application of this type member in practical engineering were provided.

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