scholarly journals Study on the Seismic Performance of Box-Plate Steel Structure with Openings Modular Unit

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4142 ◽  
Author(s):  
Jinjie Men ◽  
Guanlei Fan ◽  
Tao Lan ◽  
Jiachen Wang ◽  
Liquan Xiong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Performance ◽  
Steel Structure ◽  
Lateral Force ◽  
Plate Steel ◽  
Element Analysis ◽  
Plate Structure ◽  
Modular Unit ◽  
Practical Engineering

The box-plate steel structure residence is a box structure with stiffened steel plates directly used as load-bearing walls and floors. In practical engineering, due to the functional requirements of the building, it is necessary to open door or window openings on the box-plate steel structure walls. To study the seismic performance of the box-plate steel structure with openings system, two three-story single-compartment box-plate steel structures with openings modular units were designed and fabricated according to the 1:3 reduced scale. Through the quasi-static loading test, numerical simulation, and theoretical analysis, the failure process, failure mode, lateral force resistant capacity, and hysteresis performance of the specimens were studied. The impact of the different opening areas and opening position on the seismic performance of the box-plate steel structure was emphatically analyzed. The results of the test indicated that the openings on the steel wall plate would reduce the initial stiffness and the lateral force resistant capacity of the specimen; the destruction of the box-plate steel structure with openings modular unit under the low cyclic loading effect started with the tear in the corner of the openings and ended with the tear in the corner steel wall plate. Then, the finite element analysis (FEA) models were developed to supplement the experimental study, and the comparisons were made between measured and simulated results on load versus displacement relationships and failure modes. On the basis of the stressing mechanism of the box-plate structure modular unit, the calculation equation of the lateral force resistant capacity of the box-plate structure with openings modular unit was put forward. Then, the proved finite element analysis (FEA) models were used for parameter analysis of different influence parameters to verify the proposed calculation equation. The results showed that the proposed calculation equation had high accuracy and could be used as a design basis for practical engineering.

scholarly journals Study on the Seismic Performance of Box-Plate Steel Structure Modular Unit

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Hui Mao ◽  
Guang-chong Qin ◽  
Tao Lan
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Seismic Performance ◽  
Compression Ratio ◽  
Steel Structure ◽  
Plate Steel ◽  
Axial Compression Ratio ◽  
Test Pieces ◽  
Modular Unit ◽  
Flexibility Coefficient

To study the seismic performance of the box-plate steel structure system, two three-storey single box-plate steel structure space stress-bearing unit test pieces have been designed and fabricated according to the 1 : 3 reduced scale. In addition, the quasi-static loading test has been performed on the test pieces where the destruction process, destroy mode, bearing capacity, hysteretic behavior, etc., have been studied and the impact of reinforcing measures with a corner or not on the seismic performance of test pieces has been mainly analyzed. The test results show that the destruction of the box-plate steel structure modular unit under the low cyclic loading effect starts with corner buckling and ends with corner wallboard tear. The test piece has excellent bearing capacity and energy dissipation; the corner reinforcing structure measure also has enhanced the seismic performance of the modular unit. Based on the test, we have taken finite element numerical simulation to the test pieces, compared the analysis result of the test with the finite element, and verified the effectiveness of the finite element analysis method. This paper designs four groups of 64 finite element model test pieces and discusses the influence law of the height-thickness ratio of the wallboard, flexibility coefficient of corner reinforcing structure rib, and axial compression ratio to the seismic performance of the modular unit. The results show that the bearing capacity of the test piece is decreased with the increase of axial compression ratio under the premise that the wallboard height-thickness ratio and flexibility coefficient of the corner reinforcing structure rib are certain. Based on the above analysis results, we have put forward the lateral force resistance calculation model of the reinforcing structure modular unit with or without corner.

Design Method and Research of Adding Layers and Reinforcement of a Steel Structure

2012 ◽  
Vol 166-169 ◽  
pp. 1760-1764
Author(s):  
Song Yan Wang ◽  
Cheng Cheng Du ◽  
Jie Zhu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Method ◽  
Steel Structure ◽  
Steel Structures ◽  
Original Structure ◽  
Element Analysis ◽  
Steel Columns ◽  
The Finite Element Analysis ◽  
Practical Engineering

Due to the particularity, the reinforcement and reconstruction of steel structures should adopt a unique way. Combined with practical engineering, this paper introduces the program of Laizhou department store building reinforcement project. According to the specific requirements of the reinforcement and reconstruction, we analyze the original structure, introduce structure designs of the adding three layers as well as the reinforcement of bottom two layers, which makes construction more convenient and faster, and achieves the purpose of economic and appliance. The reinforcement of steel columns decide the period and cost. This paper expounds the reinforcement method of steel columns, and obtains the force of the bolt through the finite element analysis.

Finite Element Analysis of Drilling Frame on Down-the-Hole Drill Based on Mechanical Mechanics and Mechanical Properties

2014 ◽  
Vol 908 ◽  
pp. 282-286
Author(s):  
Wan Rong Wu ◽  
Lin Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Condition ◽  
Slenderness Ratio ◽  
Stress And Strain ◽  
Limit States ◽  
Element Analysis ◽  
Practical Engineering ◽  
Structure Strength ◽  
Strength And Stiffness

Drilling frame on TD165CH Down-The-Hole Drill that has large slenderness ratio and be longer than 10m is one component of Down-The-Hole drill which is mainly subjected to load.In the process of drilling, drilling frame is not only subjected to loads which are like tensile, compression and torsion and so on, and be under the influence of impacting and vibration of impactor,the situation of force is complicated.By analysing of working condition of Down-The-Hole drill,there get all kinds of limit states of typical working conditions, and then using Ansys doing finite element analysis, there get distribution of the stress and strain of drilling frame and the result of modal analysis to check whether drilling frame meets the requirements of strength and stiffness or not,and whether it is possible to resonate with the impactor or not.By analysis,Structure strength and stiffness of drilling Frame on TD165CH Down-The-Hole drill meet the requirements of practical engineering, and drilling Frame does not resonate with the impactor.

scholarly journals Static Experiment and Finite Element Analysis of a Multitower Cable-Stayed Bridge with a New Stiffening System

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaowei Wang ◽  
Yingmin Li ◽  
Weiju Song ◽  
Jun Xu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Internal Force ◽  
Element Analysis ◽  
Cable Stayed Bridge ◽  
Practical Engineering ◽  
Static Experiment ◽  
Stiffening Effect ◽  
Better Than ◽  
Cable Stayed Bridges

Based on the stiffness limitations of the midtower in multitower cable-stayed bridges, a new stiffening system (tie-down cables) is proposed in this paper. The sag effects and wind-induced responses can be reduced with the proposed system because tie-down cables are short and aesthetic compared with traditional stiffening cables. The results show that the stiffening effect of tie-down cables is better than that of traditional stiffening cables in controlling the displacement and internal force of the bridge based on a static experiment and finite element analysis. Therefore, the proposed system can greatly improve the overall stiffness of a bridge, and its stiffening effect is better than that of traditional stiffening cables in controlling the displacement and internal force. The results provide a reference for the application of such systems in practical engineering.

Finite Element Analysis of the Influence of Weld Size on the Combined Connection with Bolts and Welds

2014 ◽  
Vol 578-579 ◽  
pp. 1276-1280
Author(s):  
Jian Suo Ma ◽  
Run Shan Bai ◽  
Min Feng Li ◽  
Yuan Qing Wang ◽  
Lei Wang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Weld Joint ◽  
High Strength ◽  
Element Analysis ◽  
Joint Performance ◽  
Practical Engineering ◽  
Bolt Connection

The combined connection with welds and bolds mainly refers to Interaction of weld and high-strength bolts. Both bolts and welds show influence on the performance of the combined connection. In practical engineering, because of limited joint size, only welds’ performence can increase bolts number or load. Therefore, it need to explore the influences of weld on joint performance. Moreover, for given determined bolt connection, it is necessary to discuss the influences of weld size, weld length and weld height, on the performance of a certain weld joint.

Study on Seismic Performance of Offshore Platform with Rocking Wall - TMD System

2014 ◽  
Vol 610 ◽  
pp. 78-83
Author(s):  
Ji Gang Zhang ◽  
Zhi Wei Jiang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Performance ◽  
Tuned Mass Damper ◽  
Offshore Platform ◽  
Element Analysis ◽  
Mass Damper ◽  
Jacket Offshore Platform ◽  
Rocking Wall ◽  
Wall System

Offshore platform rocking wall system and tuned mass damper are briefly introduced, and the paper integrates the advantages of these two kinds of seismic method, and the TMD is attached to the jacket offshore platform - rocking wall system, using the ANSYS for finite element analysis, and the analysis results are optimized. The results show that compared with the offshore platform - rocking wall system, additional TMD can give full play to the performances of the two kinds of seismic methods, which is remarkable.

The Finite Element Analysis and Optimization of Subway Steel Structure Work Platform Based on Workbench and Pro/E in a Subway

2012 ◽  
Vol 538-541 ◽  
pp. 2953-2956
Author(s):  
Ya Li ◽  
Guang Sheng Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Characteristics ◽  
Steel Structure ◽  
Strength Analysis ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Software Model ◽  
The Finite Element Analysis ◽  
Calculation Results

The static and stability analysis of steel structure were taken according to steel structure work platform’s requirements and structural characteristics in a subway parking space by using the software model which is established by Pro/E software and implanted into the finite element analysis software ANSYS Workbench. The maximum deformation and stress in design load of the steel structure were calculated and the linear stress strength analysis of the key parts was carried out, also both the analysis and testing of the supporting pillar’s stability were performed. The results show that the structure model established by Pro/E and the calculation method are reasonable. Moreover, the calculation results are of high accuracy. The profile size is properly chosen and the structure bearing capacity and deformation meet the design requirements.

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