A New-Type Bamboo-Steel Composite Structural Member, Box Section Bamboo-Steel Composite Beams

2011 ◽  
Vol 94-96 ◽  
pp. 490-494
Author(s):  
Bo Lv ◽  
Qi Tie Xie ◽  
Jie Xu ◽  
Tian Yuan Jiang ◽  
Yu Shun Li
Keyword(s):  
Steel Sheet ◽  
Composite Beams ◽  
Structural Member ◽  
Thin Wall ◽  
Building Structures ◽  
Structural Members ◽  
Box Section ◽  
New Type ◽  
Steel Composite ◽  
Structural Adhesive

Bamboo-steel composite structure contains all kinds of composite structural members, widen the applied range of bamboo and implement the diversification of component materials and forms in building structures. The paper presents a new-type box section bamboo-steel composite beams on the basis of I-section bamboo-steel composite beams, which take cold-formed thin-wall steel as the backbone, pastes bamboo plywood outer surface of steel sheet with structural adhesive, combines into box section bamboo-steel composite beams.

scholarly journals Study on Flexural Behaviour of Box Section Bamboo-Steel Composite Beams

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Qifeng Shan ◽  
Jialiang Zhang ◽  
Keting Tong ◽  
Yushun Li
Keyword(s):  
Bearing Capacity ◽  
Safety Margin ◽  
Composite Beams ◽  
Experimental Results ◽  
Flexural Stiffness ◽  
Flexural Behaviour ◽  
Box Section ◽  
New Type ◽  
Steel Composite ◽  
Thin Walled

To take full advantages of the bamboo and cold-formed thin-walled steel, a new type of box section beam combined with bamboo and steel channel was proposed in this paper. Five composite beams with different parameters were tested to evaluate the effects of bamboo plywood thickness of composite beams and thickness and sectional dimension of steel channel. The results of experiment showed that the proposed composite beams exhibited excellent flexural bearing capacities and stiffness. The increase of bamboo plywood thickness and sectional dimension of steel channel could improve bearing capacity and flexural stiffness of composite beams, while the increase of steel thickness could enhance the bearing capacity and safety margin of composite beams. Furthermore, a new method to predict the deformation and bearing capacities of composite beams was proposed and matched well with the experimental results.

Study Status of Steel-Bamboo Composite Slabs

2014 ◽  
Vol 501-504 ◽  
pp. 727-730
Author(s):  
Jing Tang ◽  
Jun Guo ◽  
Gui Fen Hu ◽  
Yu Wen ◽  
Yu Shun Li
Keyword(s):  
Carrying Capacity ◽  
Steel Sheet ◽  
Light Weight ◽  
Building Structures ◽  
Steel Sheets ◽  
The Core ◽  
Composite Slabs ◽  
Steel Composite ◽  
Interface Slip ◽  
Core Part

At present, the development and application of new building structures are paid widely attention. In order to promote light-weight building slabs, different sections of steel-bamboo composite slabs are presented in this paper. Sandwiching thin-walled C-shaped steel or profiled steel sheet between two bamboo woods and bonding them with adhesive, a variety of different forms of steel-bamboo composite slabs are designed. For the C-shaped steel composite slabs, the reinforcement of self-tapping screws can effectively constraint interface slip between steel and bamboo plywood. It can also overcome the shortcoming of buckling which easily happen on C-shaped steel, ultimately, making the slabs have high stiffness and bearing capacity. The composite slabs with profiled steel sheets as the core part are strengthened by self-tapping screws and edge panels. And the global stability, deflection capacity and ductility performance of composite floors are significantly improved. Experimental results show that the reasonably combined composite slabs which have good combined effects, large carrying capacity and stiffness, can be used as architectural floors.

scholarly journals Research Status on Steel-bamboo Composite Structure

2019 ◽  
Vol 275 ◽  
pp. 01018
Author(s):  
Jialiang Zhang ◽  
Keting Tong ◽  
Pei Wu ◽  
Yushun Li
Keyword(s):  
Composite Structures ◽  
High Capacity ◽  
Building Structures ◽  
Composite Section ◽  
Long Time ◽  
Section Design ◽  
New Type ◽  
Cold Formed Steel ◽  
Composite Wall ◽  
Structural Adhesive

This paper presents a new type of lightweight composite structural system using bamboo-based panel and cold-formed thin-walled steel. The bamboo-based panel and cold-formed steel with C-section and U-section or profiled steel sheet can form various steel-bamboo composite members, including composite slab, composite wall, composite beam and composite column, utilizing structural adhesive or adhesive-screw reinforced joins. The paper summarizes the section design, mechanical experiments of the steel-bamboo composite structures based on the application of bamboo-based panel in modern building structures. Research shows that the two materials can form a perfect composite section and the connection systems are very effective in a long time, composite members have high capacity, ideal stability and ductility. The study shows that steel-bamboo composite components have good prospects in building structures of China.

scholarly journals Fire Resistance of Steel Composite Beams without Fire Protection

2020 ◽  
Vol 20 (5) ◽  
pp. 83-89
Author(s):  
Jaekwon Ahn ◽  
Inhwan Yeo ◽  
Gyuhwan Cho ◽  
Kyujae Hwang
Keyword(s):  
Fire Resistance ◽  
Design Method ◽  
Load Ratio ◽  
Composite Beams ◽  
Building Structures ◽  
Fire Exposure ◽  
Standard Fire ◽  
Steel Composite ◽  
Fire Design ◽  
Exposure Conditions

In this study, the fire resistance of steel composite beams typically used in building structures was investigated through standard fire and loading tests. For the tests, fire-exposure conditions depending on the steel section shape and load ratio applied to the beams were considered as the test parameters. Based on the test results, the applicability of fire design methods for composite beams recommended in current domestic and overseas fire design codes was analyzed. The results indicate that the current temperature-based design method and reduced flexural capacity method specified by the American Institute of Steel Construction may lead to the conservative fire design of steel composite beams owing to the underestimation of the effects of the fire-exposure conditions and load ratios.

Timber - Concrete Structural Element with Glued Steel Mesh

2014 ◽  
Vol 1000 ◽  
pp. 91-96
Author(s):  
Jana Daňková
Keyword(s):  
Sustainable Development ◽  
Cross Section ◽  
Structural Member ◽  
Building Structures ◽  
Slip Coefficient ◽  
Structural Element ◽  
Composite Part ◽  
Environmental Criteria ◽  
Steel Bar ◽  
New Type

Future of the building technologies are now confronted with the concept of sustainable development. Environmental criteria are becoming a standard part of the process of design and analysis of building structures. Research and development of environmentally acceptable structures is one of the priorities. Timber-concrete structures are perspective in terms of environmental criteria. This paper discusses the results gained from experimental verification of stiffness parameters for new type of composite structural member. The connections of wood and concrete composite part cross-section are provided with perforated steel bar. The slip coefficient was determined for this type of connection.

Review on Shear Connectors in Timber-Concrete Composite Beams

2015 ◽  
Vol 744-746 ◽  
pp. 274-278
Author(s):  
Li Ping Chen ◽  
Guo Jing He ◽  
Hong Zhi Xiao
Keyword(s):  
Composite Beam ◽  
State Of The Art ◽  
Composite Beams ◽  
Structural Member ◽  
Shear Connector ◽  
Timber Beam ◽  
Shear Connectors ◽  
The Past ◽  
Different Types ◽  
New Type

The timber-concrete composite (TCC) beam is a new type of structural member, which formed by combing a timber beam and an upper concrete flange using different types of connectors. Compared with the traditional timber beam, the bending and stiffness of the composite beam is proved. In composite structure, the important factor of the structure is the shear connector. So structural efficiency of a TCC highly depends on the stiffness of the interlayer connection. This paper presents a survey on the state-of-the-art of shear connectors for TCC beam research in the past and recent years. And put forward to the subsequent study of shear connectors in TCC beams.

Study on Comprehensive Performance of the New-Type Steel-Encased Concrete Composite Beams Using FEM

2012 ◽  
Vol 594-597 ◽  
pp. 697-701
Author(s):  
Ji Tong Jiang ◽  
Xiu Lan Zhu ◽  
De Run Du ◽  
Kun Dong ◽  
Song Yang
Keyword(s):  
Finite Element Method ◽  
Cross Section ◽  
Economic Performance ◽  
Composite Beams ◽  
The Finite Element Method ◽  
Type Steel ◽  
Comprehensive Performance ◽  
New Type ◽  
Steel Composite ◽  
The Common

The U-section steel-encased concrete composite beams, a new type of composite beams with reasonable and efficient form, are developed from the common steel-concrete composite beams. In this paper, the U-section steel-encased concrete composite beams and common H-section steel composite beams were modelled numerically and analyzed contrastively from the same section height and reasonable cross-section two aspects using the finite element method (FEM) and the better mechanical behavior and economic performance of the new-type steel-encased concrete composite beams are summed up.

Strong-axis response of steel I-sections subjected to close-in detonations

2020 ◽  
pp. 204141962098448
Author(s):  
Hezi Y Grisaro ◽  
Michael V Seica ◽  
Jeffrey A Packer ◽  
Wei Li
Keyword(s):  
Computation Time ◽  
Structural Member ◽  
Local Damage ◽  
Structural Members ◽  
Large Magnitude ◽  
Single Degree Of Freedom ◽  
Charge Shape ◽  
Dynamic Scenario ◽  
Detonation Process ◽  
Residual Deformations

The analysis of structural members subjected to close-in detonations involves a complicated dynamic scenario. Since the charge is very close to the structural member, the reflected pressure distribution on the member surface is highly non-uniform. In addition, the level of damage to the structural member may be high because of the large magnitude of the load. Due to these phenomena, the response of a structural member to close-in detonation cannot be accurately modelled by relatively simple methods like single-degree of freedom models, and more complicated models are required. Such models need to include numerical simulation of the detonation process, which produces a non-uniform pressure environment, allowing the pressure to reflect and flow around the member section. The local damage and flow around the section are especially of interest in I-shaped, or wide-flange-section members. Herein, the response of such sections is modelled by numerical simulations using a novel technique, which overcomes the difficulty of computation time, and is validated through various calculations. The model is used to perform a parametric study to investigate the response of I-sections subjected to close-in detonations, in terms of local damage and global behaviour, with scaled distances of 0.15–0.29 m/kg1/3 and loading causing flexure about the strong axis. Various aspects that affect the performance are studied, such as: the effect of scaled distance, the addition of welded stiffening plates between the flanges and web, the effect of boundary conditions and the effect of charge shape. Resulting local damage and residual deformations are assessed for the cases studied.

Research Situation of the Unilateral Contact Buckling of Thin Wall Steel-Concrete Composite Panels

2011 ◽  
Vol 255-260 ◽  
pp. 333-337
Author(s):  
Bing Qing Xia ◽  
Jun Dong ◽  
Lan Zong
Keyword(s):  
Heat Insulation ◽  
Unilateral Contact ◽  
Research Approach ◽  
Composite Panels ◽  
Thin Wall ◽  
Functional Requirements ◽  
Wall Panels ◽  
Steel Composite ◽  
Composite Wall ◽  
Research Situation

Thin wall steel-concrete composite wall panels can be used as bearing member and also as maintenance structural plates, which can satisfy functional requirements of building including bearing capacity, heat insulation and preservation. The problem relating unilateral contact buckling of thin wall steel composite panels has received attention from many construction engineers. The investigation progress is analyzed in general and the investigation questions are illustrated. The research approach and technical routes of delaminated critical load are also presented.

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