scholarly journals STABILITY OF THE METAL FRAME ELEMENTS WHEN WORKING IN CRAMPED CONDITIONS

2021 ◽  
Vol 1 (1) ◽  
pp. 199-200
Author(s):  
Andrey Savenkov ◽  
Evgeniy Zaenec ◽  
Andrey Ketner
Keyword(s):  
Fire Resistance ◽  
Foam Concrete ◽  
Building Frame ◽  
Overall Stability ◽  
Static Operation ◽  
Metal Frame ◽  
Thin Walled

The static operation of the building frame elements formed from thin-walled open profiles located in a monolithic foam concrete array is considered. This arrangement increases the overall stability and fire resistance of the floor beams.

scholarly journals IMPROVING THE STABILITY OF METAL FRAME ELEMENTS WHEN WORKING TOGETHER WITH FOAM CONCRETE

2021 ◽  
Vol 1 (1) ◽  
pp. 197-198
Author(s):  
Andrey Savenkov ◽  
Evgeniy Zaenec ◽  
Andrey Ketner
Keyword(s):  
Bearing Capacity ◽  
Rolled Steel ◽  
Foam Concrete ◽  
Load Bearing Capacity ◽  
Building Frame ◽  
Working Together ◽  
Static Operation ◽  
Metal Frame ◽  
Thin Walled ◽  
The Stability

The static operation of building frame elements is considered. A comparison of the load-bearing capacity of floor beams made of rolled steel and beams made of thin-walled curved pro files is given

scholarly journals CONCEALED FRAME MADE OF LIGHT STEEL THIN-WALLED STRUCTURES IN MONOLITHIC FOAM CONCRETE

2021 ◽  
Vol 2021 (1) ◽  
pp. 134-137
Author(s):  
Andrey Savenkov ◽  
Evgeniy Zaenec ◽  
Andrey Ketner
Keyword(s):  
Technical Solution ◽  
Foam Concrete ◽  
Standard Version ◽  
Thin Walled Structures ◽  
Overall Stability ◽  
Thin Walled

The use of buildings frame elements formed from thin-walled unclosed profiles located in a monolith-ic foam concrete array is considered. This technical solution provides a number of advantages in comparison with the standard version of metal frames, including increasing the overall stability of lightweight profiles

scholarly journals DEFORMATIONS OF AN OFF-CENTER COMPRESSED RACK IN A FOAM CONCRETE CAGE

2021 ◽  
Vol 2021 (1) ◽  
pp. 130-133
Author(s):  
Andrey Savenkov ◽  
Evgeniy Zaenec ◽  
Andrey Ketner
Keyword(s):  
Technical Solution ◽  
Foam Concrete ◽  
Overall Stability

The set of stresses and deformations that occur during the central and off-central compression of the rack in the foam concrete cage is estimated. This technical solution increases the overall stability of the compressed elements

scholarly journals Fire resistance of lightweight foam concrete by incorporating lightweight bio-based aggregate

2021 ◽  
Vol 920 (1) ◽  
pp. 012009
Author(s):  
M K Yew ◽  
M C Yew ◽  
J H Beh ◽  
L H Saw ◽  
Y L Lee ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Fire Resistance ◽  
Coarse Aggregate ◽  
Positive Outcome ◽  
Strength Properties ◽  
Sound Insulation ◽  
Foam Concrete ◽  
Load Bearing ◽  
Oil Palm Shell ◽  
Lightweight Foam

Abstract Concrete is widely used in the industry due to its effectiveness in terms of cost and strength. In this study, the introduction of bio-based aggregate as coarse aggregate in lightweight foam concrete will be investigated to find a better solution for fire incidents that are commonly happened. As such, lightweight foam concrete (LWFC) has been applied in many buildings especially in non-load bearing wall to enhance thermal conductivity, sound insulation and fire resistance. The aim of this research is to investigate the effect of incorporating bio-based aggregate namely oil palm shell (OPS) into lightweight form concrete in terms of strength properties and fire resistance. Three different concrete mix was designed containing different percentage of OPS aggregate replacement (0, 5, 10 and 15%). From the result, the compressive strength of the LWFC-CTR mixture had achieved the highest compressive strength at 28-day, which is recorded at 3.82 MPa. The fire resistance of LWFC-OPS 15% had showed a positive outcome with improvement by almost 23.5% compared to control mix at 15 minutes. Therefore, the major finding of this research is the incorporation of eco-friendly OPS aggregate has improved the fire resistance of lightweight foam concrete, which can be used as an alternative solution for non-load bearing walls.

scholarly journals Structural Behavior of Composite Floor System Using Cold-Formed Thin-Walled C Steel Channel Embedded Foam Concrete

2021 ◽  
Vol 11 (21) ◽  
pp. 9888
Author(s):  
Dianzhong Liu ◽  
Feng Fu ◽  
Wanjuan Liu
Keyword(s):  
Failure Modes ◽  
Concrete Slab ◽  
Structural Behavior ◽  
Test Results ◽  
Foam Concrete ◽  
Flexural Capacity ◽  
Composite Slab ◽  
New Type ◽  
Thin Walled ◽  
Floor System

In this paper, a new composite floor system using cold-formed thin-walled C steel channel embedment and a foam concrete slab is developed. This new type of floor system features lightweight, high fire-resistant, and high anti-corrosion features, and can be used for multi-story buildings, providing a promising new alternative floor system for the construction market. Two four-point bending tests were carried out to investigate the flexural capacity and failure modes of this new type of composite slab. Based on the test results, a nonlinear finite element model was developed using general software package ABAQUS. The model is validated using the test results. Using this model, parametric studies were performed to study the key parameters affecting the structural behavior of this new type of composite floor system. Different parameters such as density of the foam concrete, grade of the cold-formed thin-walled C steel channel embedment, and spacing of the cold-formed thin-walled C steel channel were investigated. Their contributions to the overall moment capacity and their effect on the failure modes of this type of composite slab were discovered. Based on experimental results and FE results, design formulas for ultimate flexural capacity of this new type of composite slabs were also developed which can accurately predict their flexural capacity.

Fire resistance of thin-walled steel tube confined reinforced concrete middle-length columns: Test and numerical simulation

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 339-355
Author(s):  
Xuhong Zhou ◽  
Jingjie Yang ◽  
Jiepeng Liu ◽  
Shang Wang ◽  
Weiyong Wang
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Fire Resistance ◽  
Steel Tube ◽  
Thin Walled

Overall stability of thin-walled mobile crane booms operating in the postbuckling range

1991 ◽  
Vol 19 (4) ◽  
pp. 321-329 ◽  
Author(s):  
Lars Holmström ◽  
Lars Å. Samuelson ◽  
Jerzy Zubaczek
Keyword(s):  
Overall Stability ◽  
Mobile Crane ◽  
Thin Walled

Failure Mode and Experimental Method Research for Bond-Slip of Cold-Formed Thin-Walled Steel and Foam Concrete Composite Member

2015 ◽  
Vol 724 ◽  
pp. 33-38
Author(s):  
Dian Zhong Liu ◽  
Fa Yu Wang ◽  
Bo Li ◽  
Qiong Wu
Keyword(s):  
Theoretical Analysis ◽  
Experimental Method ◽  
Failure Mode ◽  
Influencing Factors ◽  
Experimental Research ◽  
Bonding Mechanism ◽  
Foam Concrete ◽  
Bond Slip ◽  
Thin Walled ◽  
Push Out

According to the previous experimental research on bond-slip, select push-out test as experimental method research on bond-slip between cold-formed thin-walled steel and foam concrete. Through the observation of the specimens in the push-out test, combining with the natural bonding mechanism and influencing factors summarized the failure mode and its law of composite member. The reference and basis for the experimental research and theoretical analysis of it in the future are provided.

Fire resistance of thin-walled tubular T-joints with internal ring stiffeners under post-earthquake fire

2019 ◽  
Vol 145 ◽  
pp. 106433 ◽  
Author(s):  
Jixiang Xu ◽  
Yige Tong ◽  
Jianping Han ◽  
Zhaolong Han ◽  
Zhanjie Li
Keyword(s):  
Fire Resistance ◽  
Internal Ring ◽  
T Joints ◽  
Thin Walled

Overall Stability of Cold-Formed Steel Lipped Channel Axially Compressed Members with Batten Plates

2011 ◽  
Vol 94-96 ◽  
pp. 953-957
Author(s):  
De Fa Sun
Keyword(s):  
Bearing Capacity ◽  
Steel Structure ◽  
Calculation Methods ◽  
Steel Members ◽  
Overall Stability ◽  
Cold Formed Steel ◽  
Thin Walled ◽  
Flexural Torsional Buckling ◽  
Warpage Deformation ◽  
Specific Number

Batten plates can play a significant role in reducing the bearing capacity of the entire component and preventing the upward warpage deformation in the opening section. The specific number of batten plates should be calculated for the open cold-formed thin-walled steel structure. By theoretical analysis, this study develops the flexural-torsional buckling formula for the open lipped-channel section cold-formed thin-walled axially compressed members with batten plates. The calculating results show that, according to the configuration rule with 80 iy space between batten plates along the opening direction in the open thin-walled steel members, the warpage deformation will be effectively prevented in the opening direction. Besides, the bearing capacity of the entire member will be increased. The proposed calculation methods can actively complement the existing code.

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