Research on Fire Performance of a Profiled Light Aggregate Concrete Composite Floor

2011 ◽  
Vol 117-119 ◽  
pp. 1677-1680
Author(s):  
Yao Ji ◽  
Xin Tang Wang ◽  
Ming Zhou ◽  
Hong Liang Sun
Keyword(s):  
Bearing Capacity ◽  
Lightweight Aggregate ◽  
Experimental Results ◽  
Lightweight Aggregate Concrete ◽  
Fire Performance ◽  
Dead Load ◽  
Fire Response ◽  
Fire Load ◽  
Aggregate Concrete ◽  
Distributed Load

To study the fire performance of the profiled sheet-light aggregate concrete composite floor subjected to fire load, study of fire response and post-fire bearing capacity of a profiled sheet-lightweight aggregate concrete composite floor subjected to dead load is carried out. Based on the experimental results, the fire performance and post-fire bearing capacity of the floor after exposure to fire are analyzed. It is shown that the failure form of the profiled sheet-ceramsite concrete composite floor after exposure to fire still exhibits higher bearing capacity, and the ultimate value of the equivalent distributed load is up to 35kN/m2, which may be used as basis of strengthening and repairing of the profiled sheet-lightweight aggregate concrete composite floor after exposure to fire.

Research on Fire Behaviour of a Lightweight Aggregate Concrete Composite Floor

2011 ◽  
Vol 368-373 ◽  
pp. 911-914
Author(s):  
Hong Liang Sun ◽  
Xin Tang Wang ◽  
Ping Xin Sun
Keyword(s):  
Bearing Capacity ◽  
Lightweight Aggregate ◽  
Lightweight Aggregate Concrete ◽  
Fire Performance ◽  
Fire Behaviour ◽  
Dead Load ◽  
Fire Response ◽  
Fire Load ◽  
Aggregate Concrete ◽  
Bending Capacity

To study the fire performance of the profiled sheet-light aggregate concrete composite floor subjected to fire load, study of fire response and post-fire bearing capacity of a profiled sheet-lightweight aggregate concrete composite floor subjected to dead load is carried out. Based on the experimental results, the fire performance and post-fire bearing capacity of the floor after exposure to fire are analyzed. It is shown that the failure form of the profiled sheet-ceramsite concrete composite floor after exposure to fire still exhibits higher bending capacity, and the ultimate value of the equivalent distributed load is up to 30.69kN/m2, which may be used as basis of strengthening and repairing of the profiled sheet-ceramsite concrete composite floor after exposure to fire.

Experimental Study of Post-Fire Bearing Capacity of a Profiled Sheet-Lightweight Aggregate Concrete Composite Floor

2011 ◽  
Vol 368-373 ◽  
pp. 906-910
Author(s):  
Ping Xin Sun ◽  
Xin Tang Wang ◽  
Hong Liang Sun
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Lightweight Concrete ◽  
Lightweight Aggregate ◽  
Lightweight Aggregate Concrete ◽  
Dead Load ◽  
Fire Load ◽  
Aggregate Concrete ◽  
Distributed Load ◽  
And Performance

In order to study the post-fire bearing capacity and performance of the profiled sheet-light aggregate concrete composite floor after exposure to fire load, experimental study of post-fire bearing capacity of a profiled sheet-ceramsite concrete composite floor subjected to dead load, which has no shearing nails, is carried out here. Based on the experimental results, the post-fire bearing capacity of the composite floor after exposure to fire is analyzed. It is shown that the failure form of the profiled sheet-lightweight concrete composite floor after exposure to fire has obvious change compared with the floor not subjected to fire load, and the ultimate value of the equivalent distributed load applied to the top surface of the floor is up to 35 kN/m2, which may be used as basis of strengthening and repairing of the profiled sheet-lightweight aggregate concrete composite floor after exposure to fire.

Study of Fire Behavior of a Profiled Sheet-Ceramsite Concrete Composite Floor

2011 ◽  
Vol 243-249 ◽  
pp. 5231-5235
Author(s):  
Xin Tang Wang ◽  
Ming Zhou ◽  
Hai Jiang Wang ◽  
Zhi Guo Xie
Keyword(s):  
Bearing Capacity ◽  
Fire Behavior ◽  
Experimental Results ◽  
Dead Load ◽  
Fire Response ◽  
Fire Load ◽  
Distributed Load ◽  
Obvious Change ◽  
Bending Capacity

In order to study the fire behavior of the profiled sheet-ceramsite concrete composite floor subjected to fire load, research on fire response and post-fire bearing capacity of a profiled sheet-ceramsite concrete composite floor subjected to dead load, which has no shearing nails, is carried out here through experiment. Based on the experimental results, the fire behavior and post-fire bearing capacity of the floor after exposure to fire are analyzed. It is shown that the failure form of the profiled sheet-ceramsite concrete composite floor after exposure to fire has obvious 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 35kN/m2, which may be used as basis of strengthening and repairing of the profiled sheet-ceramsite concrete composite floor after exposure to fire.

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.

Experimental Study of Performance of Self-Stress Lightweight Aggregate Concrete Filled Steel Tubes after Exposure to Fire

2013 ◽  
Vol 790 ◽  
pp. 173-176
Author(s):  
Jin Can Xu ◽  
Peng Fei Ren ◽  
Hai Lun Tong ◽  
Xin Tang Wang
Keyword(s):  
Bearing Capacity ◽  
Fire Behavior ◽  
Lightweight Aggregate ◽  
Lightweight Aggregate Concrete ◽  
Fire Load ◽  
Steel Tubes ◽  
Aggregate Concrete ◽  
Expansive Agent ◽  
Short Columns ◽  
Concrete Filled Steel Tubes

The post-fire behavior of a set of self-stress lightweight aggregate concrete filled steel tubular short columns (noted as SSLC-SSC) after exposure to fire was experimentally studied. Effect of the maximum value of fire response temperatures of the tubes and their geometric parameters on the strength and the other mechanical property of the specimens were especially discussed. The experimental results show that the specimens of SSLC-SSC have higher post-fire bearing capacity and better plastic deformation, there was no obvious 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 has great effect on the post-fire bearing capacity of self-stress concrete-filled steel tubes subjected to fire load, and the value of self-stress corresponding to 10% of dosage of expansive agent has the greatest effect on post-fire bearing capacity of specimens of SSLC-SSC.

Study of Post-Fire Behavior of a Profiled Sheet-Ceramsite Concrete Composite Floor

2011 ◽  
Vol 117-119 ◽  
pp. 1857-1860
Author(s):  
Xin Tang Wang ◽  
Ming Zhou ◽  
Ping Xin Sun
Keyword(s):  
Bearing Capacity ◽  
Experimental Research ◽  
Fire Behavior ◽  
Experimental Results ◽  
Dead Load ◽  
Fire Load ◽  
Distributed Load ◽  
Obvious Change ◽  
Bending Capacity

To study the post-fire behavior of the profiled sheet-ceramsite concrete composite floor after exposure to fire load, experimental research on post-fire bearing capacity of a profiled sheet-ceramsite concrete composite floor subjected to dead load, which has shearing nails, is carried out here. Based on the experimental results, the post-fire bearing capacity of the composite floor after exposure to fire is analyzed. It is shown that the failure form of the profiled sheet-ceramsite concrete composite floor after exposure to fire has obvious change compared with the floor not subjected to fire load, but the composite floor subjected to fire load exhibits higher bending capacity, and the ultimate value of the equivalent distributed load is up to 30.86 kN/m2, which may be used as basis of strengthening and repairing of the profiled sheet-ceramsite concrete composite floor after exposure to fire.

Evaluation of fire performance of lightweight concrete wall panels using finite element analysis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Irindu Upasiri ◽  
Chaminda Konthesingha ◽  
Anura Nanayakkara ◽  
Keerthan Poologanathan ◽  
Brabha Nagaratnam ◽  
...  
Keyword(s):  
Finite Element ◽  
Lightweight Concrete ◽  
Lightweight Aggregate ◽  
Lightweight Aggregate Concrete ◽  
Fire Performance ◽  
Concrete Wall ◽  
Aggregate Concrete ◽  
Content Type ◽  
Wall Panels ◽  
Foamed Concrete

Purpose In this study, the insulation fire ratings of lightweight foamed concrete, autoclaved aerated concrete and lightweight aggregate concrete were investigated using finite element modelling. Design/methodology/approach Lightweight aggregate concrete containing various aggregate types, i.e. expanded slag, pumice, expanded clay and expanded shale were studied under standard fire and hydro–carbon fire situations using validated finite element models. Results were used to derive empirical equations for determining the insulation fire ratings of lightweight concrete wall panels. Findings It was observed that autoclaved aerated concrete and foamed lightweight concrete have better insulation fire ratings compared with lightweight aggregate concrete. Depending on the insulation fire rating requirement of 15%–30% of material saving could be achieved when lightweight aggregate concrete wall panels are replaced with the autoclaved aerated or foamed concrete wall panels. Lightweight aggregate concrete fire performance depends on the type of lightweight aggregate. Lightweight concrete with pumice aggregate showed better fire performance among the normal lightweight aggregate concretes. Material saving of 9%–14% could be obtained when pumice aggregate is used as the lightweight aggregate material. Hydrocarbon fire has shown aggressive effect during the first two hours of fire exposure; hence, wall panels with lesser thickness were adversely affected. Originality/value Finding of this study could be used to determine the optimum lightweight concrete wall type and the optimum thickness requirement of the wall panels for a required application.

scholarly journals A methodology to obtain an analytical formula for the elastic modulus of lightweight aggregate concrete

DYNA ◽  
2015 ◽  
Vol 82 (193) ◽  
pp. 98-103
Author(s):  
Flávio de Souza-Barbosa ◽  
Michèle Cristina Resende-Farage ◽  
Aldemon Lage-Bonifácio ◽  
Anne Lise Beaucour ◽  
Sophie Ortola
Keyword(s):  
Elastic Modulus ◽  
Curve Fitting ◽  
Analytical Formula ◽  
Lightweight Aggregate ◽  
Experimental Results ◽  
Lightweight Aggregate Concrete ◽  
Aggregate Concrete ◽  
Good Agreement

This work proposes a methodology to predict the elastic modulus of lightweight aggregate concretes. To this end an analytical formula is achieved by curve fitting experimental results from 135 concrete samples made of 45 different mixes. The validation of the proposed methodology is carried out by applying the obtained analytical formula to a set of 90 concrete samples made of 30 different mixes. Comparisons with other methods applied to predicting the elastic modulus of lightweight aggregate concretes indicate that the results show good agreement and suggest that the proposed methodology could be applied in practical situations.

Experimental Study on All-Lightweight Aggregate Concrete Columns under Eccentric Loading

2012 ◽  
Vol 517 ◽  
pp. 392-397
Author(s):  
Yan Min Yang ◽  
Hao Zhang
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Lightweight Aggregate ◽  
Concrete Columns ◽  
Lightweight Aggregate Concrete ◽  
Fine Aggregate ◽  
Mechanical Behaviors ◽  
Load Bearing Capacity ◽  
Aggregate Concrete ◽  
Load Bearing

A kind of lightweight sand was only used as the fine aggregate to make the all-lightweight aggregate concrete, which can significantly reduce the gravity load of a structure and the foundation loads. Accordingly, the application of all-lightweight aggregate concrete in the construction projects can reduce the cost of foundation as well as construction project. In order to develop a new multi-story structural system which has a multifunction of load-bearing, lightweight and energy saving, the paper carried out an experimental study on the mechanical behaviors of six all-lightweight aggregate concrete columns with symmetrical reinforcement under eccentric loading. The failure modes, deformation characteristics and load-bearing capacity of the columns were analyzed. The effect of reinforcement ratio, stirrup ratio and eccentricity on the mechanical behaviors of the columns under eccentric loading were discussed. The test results show that all-lightweight aggregate concrete columns were loaded to failure with high load-bearing capacity and good ductility. The excellent mechanical behavior and the possibility of replacing the normal concrete with all-lightweight aggregate concrete were verified.

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