bluuebunny/crossref_metadata_2025_split huggingface dataset:
Controlling Measure for Distortional Buckling of Cold-formed Thin-walled Steel Lipped Channel Members
Authors: Yao Xingyou , Yin Jiawen , Hu Pengwen , Song Xiaoqing , Li Xiao 
Published: March 2020

Abstract
This paper proposed a structural measure according to add batten sheets between two lips to controlling distortional buckling of cold-formed thin-walled steel members with lipped channel section, and the effectiveness was verified through existing tests. At the same time, the stiffness requirements of batten sheets were presented. The structural measures of adding batten sheets between two lips can effectively prevent the rotation of partially stiffened elements, and the distortional buckling load and bearing capacity of the members have been greatly improved. The test shows that the batten sheets with a certain distance and stiffness can improve the bearing capacity of the member or avoid the occurrence of distortional buckling.
Structural Rationality Research on Integrated Prefabricated I-Shaped Steel-Concrete Composite Girder Bridges
Authors: Peng Bo , Peng Rongrong , Su Huanghe , Lu Zhiwei 
Published: March 2020

Abstract
In order to promote the use of steel-concrete composite bridges in small and medium span bridges, and improve industrial construction of bridge and assembling degree of the composite girder bridge, an integrated prefabricated steel-concrete composite girder bridge was proposed. Considering the requirements of small and medium span bridges and the condition of highway transportation, the basic unit of the integrated prefabricated steel-concrete composite girder was constructed, and the connection way of units was put forward so as to further form the whole bridge. According to the result of calculation and analysis, the mechanical behaviour of the integrated prefabricated steel-concrete composite girder is superior to the traditional separated prefabricated steel-concrete composite girder, and it also performs better than the existing prefabricated concrete box girder and prefabricated concrete T-shaped girder in economy from the prospective of cycle. Besides, by comparing with the existing prefabricated concrete box girder, the prefabricated concrete T-shaped girder and the separated prefabricated steel-concrete composite girder, the integrated prefabricated steel-concrete composite girder would significantly improve the construction efficiency and shorten the construction period, and the construction quality could be guaranteed. All in all, the integrated prefabricated steel-concrete composite girder is a rational structure with convenient construction for bridge engineering.
Design and Verification Test of Quasi-Static Pushover Model Container
Authors: Xu Kunpeng , Jing Liping , Bin Jia 
Published: March 2020

Abstract
Laboratorial testing methods for exploring seismic response mechanism of underground structures usually consist of conventional shaking table test and centrifuge shaking table test. The types of model containers employed to investigate the seismic response mechanism of underground structures during dynamic tests include rigid, flexible and laminar shear model containers, all of them have some drawbacks. It is essential to choose an appropriate model container in terms of test requirement, according to the quasi-static pushover testing method a novel model container was proposed. A set of quasi-static pushover tests were conducted to verify the performance of the new container. The experimental results show that the designed model container can effectively simulate the most unfavourable deformation mode of invert triangle in push direction, which means that quasi-static testing method with this model container can be applied to evaluate seismic response of underground structures, furthermore, the deep-buried condition is also can be simulated.
Comparative Optimization and Application of Rectification Schemes for Shear Wall Structure
Authors: Li Shuai , Li Yanhe , Lu Yi 
Published: March 2020

Abstract
For the lift correction design of the shear wall structure, there are two schemes to choose the new underpinning structure jacking and the direct jacking under the wall. Combined with a practical project, this paper puts forward the way of opening jacking joint mainly, supplemented by underpinning structure jacking, and points out that the new underpinning structure jacking method should be designed and checked according to the space truss theory. Direct jacking with holes under the wall should meet the requirements of jacking bearing capacity, local bearing capacity and axial pressure ratio. Through the comparative analysis of the two schemes, it is considered that the opening direct jacking method should be given priority, so as to provide reference for similar projects.
Effects of Bottom Obstacle Structure on Density-Induced Flow
Authors: Huang Shuo , Huang Wenrui , Shen Qi 
Published: March 2020

Abstract
Density flows frequently occur in nature and some of them have caused serious consequences, such as sedimentation and saline water intrusion. In order to control density flows, the method like placing an obstacle has been proposed. In this paper, the influence of the height and position of obstacle and the salinity difference on the behaviors of lock-exchange density flow was studied experimentally by using high-speed camera and laser particle image velocimetry (PIV) technique. The experiments were conducted in a plexiglass flume whose height, width and depth were 1.8 m, 0.22 m and 0.3 m respectively. Besides, the bottom of the flume is smooth. The flume was separated by one board and the left side of the flume was filled by fresh water while the right side of the flume was filled by salt water. After the board was lifted, the salt water flow into the fresh water and formed a density flow. Obstacles were placed 0.05 m and 0.25 m away from the gate respectively. The velocity and flow field were measured by using the PIV technique. The results indicated that the existence of obstacles blocked the progress of density flow and the propagation distance of density current in the case without obstacle was much longer than the other one which contained obstacle. Additionally, it was observed that when the density flow was crossing over one obstacle, a re-acceleration process was happening at the head of the current, and the maximum velocity caused by this process was larger than the maximum velocity without obstacles. Besides, by comparing the obstacle and non-obstacle situations, the body velocity of density flow was greatly reduced at the front of obstacle. However, the effect of different obstacle positions on the maximum velocity of the head of density flow is not significant.
Analysis on the Static Performance of a New Type of Large-Span Fabricated Grid-Plate Ribbed Composite Floor Structure
Authors: Liu Kai , Zhao Xueying , Wu Xuewen , Yi Shuai , Zhou Yan 
Published: March 2020

Abstract
A new type of large-span fabricated grid-plate ribbed composite floor structure is proposed basis on fabricated steel-concrete composite structure. The new structure consists of four sides of rib, bottom slab and internal concrete block. In this paper, the static performance of the new structure is analysed by the finite element method and compared with the combined open-web sandwich plate structure. The analysis results show that the new type floor can reach 1/30-1/35 of the span. Under the same span, mesh size and load, compared with the existing combined open-web sandwich plate floor, the new type floor has large stiffness, small structure height, light weight, and reduce concrete and steel consumption by 77.6% and 7.3%, respectively. The structure is safe, reliable and has good economic benefits.
Application of 3D Laser Scan Technology in the Surveying and Mapping of Ancient Buildings
Authors: Xu Feijin , Chen Shuokui 
Published: March 2020

Abstract
Taking Wang’s ancestral temple in Yongshan Town, Leping City, Jiangxi Province as the research object, through the teaching practice of surveying and mapping of ancient buildings, this paper summarizes the advantages and disadvantages of 3D laser scan technology in surveying and mapping of ancient buildings and discusses the Methods and approaches of combining industry-university-research cooperation mode in local colleges and universities under the background of cultural relics protection.
Finite Element Analysis of Dynamic Time History of Steel Frame Structure Filled with Rubber Brick
Authors: Wang Fengchi , Ma Yifang , Liu Keyi 
Published: March 2020

Abstract
Studying the influence of rubber brick infilled wall on the seismic performance of steel frame has theoretical and practical significance for the use of materials in civil engineering industry. The modal analysis of SF, RSF, LSF, R1SF and R2SF, and the nonlinear dynamic time history analysis under the action of two actual seismic waves and one artificial seismic wave are carried out by using the large finite element analysis software ABAQUS. Based on the comparison of the infilled wall materials and the layout of the infilled wall, the influence of the structural frequency and the maximum horizontal displacement is analysed. The structure of the study indicates that: under the action of seismic waves, the natural vibration frequency of the whole structure is reduced by adding the rubber brick infilled wall, and the increasing speed of the natural vibration frequency of the whole structure is slowed down. Under monotonic and low-cycle reciprocating loads, rubber brick filled walls can effectively improve the bearing capacity and lateral stiffness of the whole structure, improve the stress concentration of frame columns, but weaken the energy dissipation capacity of the whole structure.
An Acoustic Discrimination Method for Impact Load Based on Artificial Neural Network
Authors: Wang Zhenhan , Ma Li , Zhan Qianru , Li Qinghua , Li Fuguo 
Published: March 2020

Abstract
In order to meet the engineering requirements of non-contact measurement of impact load and realize the intelligent identification of its characteristic parameters, this paper attempts to establish a method to analyze and learn the audio characteristics generated by accidental loads, such as impact and explosion, and to identify the impact load characteristics in reverse. The method, which is based on energy conservation, momentum conservation and strokes law, used p-norm in mathematics to extract the basic characteristics of impact load, and the frequency analysis to find the inevitable connection between the audio characteristics impulse-induced and the impact load characteristics. At last, “Acoustic Discrimination for Impact Load Identification (ADII)” by adopting the functions of artificial neural networks about learning, categorization and generalization was implemented.
Effect of Depressurized Hydrate on Soil Layer Around Wellhead
Authors: Yang Lele , Wang Jing 
Published: March 2020

Abstract
Nature gas hydrate has a wide distribution on land and in the sea, which can greatly meet human demand for energy and is a potential clean energy. This paper mainly studies the deformation of the soil around the wellhead during the process of exploiting hydrate by the anti-pressure method, and analyzes the two sensitivities of the dip angle of the hydrate-bearing soil layer and the decomposition range of the hydrate. This paper also evaluates the stability of the soil layer around the wellhead during exploiting. The study found that when the dip angle of the seabed soil layer is constant, the decomposition area and the deformation of the soil body increases continuously. When the decomposition range is less than a certain critical value, the deformation is limited and no collapse occurs; but once this critical value is exceeded, the soil around the decomposition zone is shear-damaged. The extent to which hydrate decompose has the greatest impact on soil deformation. These conclusions have certain reference value for the assessment of the safety of hydrate exploiting.
Coupled On-Site Measurement/CFD Based Approach for Wind Resource Assessment and Wind Farm Micro-Siting Over Complex Terrain
Authors: Hu Weicheng , Yang Qingshan , Zhang Jian , Hu Jianxiao 
Published: March 2020

Abstract
Wind resource assessment and wind farm micro-siting over complex terrain are essential for wind power management and wind farm operation. A coupled approach is presented for wind resource assessment over a complex topography in Changsha, China, and an improved Genetic Algorithm (GA) is introduced for optimization of wind turbines micro-siting. The Computational Fluid Dynamics (CFD) with Realizable k-ε turbulence closure is adopted to simulate the atmospheric boundary layer flow over the complex terrain, and the results are validated by the wind tunnel tests. Long-term on-site measurements from a meteorological station are combined with the CFD results to evaluate the wind energy potential over the complex terrain. A semi-analytical approach is proposed for prediction of yearly wind power generation at the turbine site, and the Jensen-Katic model is utilized in consideration of the wake effects. The improved GA is presented based on the wind resource map. The schemes with different grid discretization are studied. The results showed that the proposed approach is effective for wind resource assessment and wind turbines micro-siting.
Study on Longer Span Length of Hanging Tubular Busbar in 750kV Substation
Authors: Jia Yunhui , Li Yiping , Chen Kai , Liu Qiang , Zu Jinlong , Wang Huijun , Ren Pengfei , Zhang Xu 
Published: March 2020

Abstract
Based on mechanics study of 750kV hanging tubular busbar applied in Qiaowan 750kV substation, develop a new type of tubular busbar fittings, which is made of proper conductor material and tested in real model experiment. By using these fittings, longer span length of 750kV hanging tubular busbar can be applied in 750kV electric power distribution device and the deflection can be controlled in a narrow range of 0.5-1 times of tubular busbar diameter.
Research on Vegetation Community Restoration Technology of Engineering Destruction Surface Based on Real-Time Fusion of Environmental Background
Authors: Luo Wen , Ma Dongliang , Yang Dafeng 
Published: March 2020

Abstract
Vegetation community restoration is an important means for background matching modelling of destructive surface in disturbed area of engineering and real-time fusion of environmental background. Aiming at the problems of large-scale reconstruction or new construction, changing topography and landform, difficult ecological restoration and poor natural similarity of existing vegetation restoration. Through investigation of plant communities around the engineering area, methods such as stable base materials, rapid and sustained nutrient supply, plant screening and cultivation and functional testing were adopted. Three-dimensional construction of plant communities on the destructive surface of engineering disturbance area was carried out, promoting the succession of vegetation communities to surrounding vegetation types. Finally, the effect of vegetation community restoration was characterized. Experiments show that the vegetation coverage rate is 89.4%; the replanting rate is high, which reduces the difference between the restored vegetation and the surrounding background. After a certain period of vegetation community restoration, it can naturally and continuously merge into the background vegetation, destroying the characteristics of target detection and recognition, and realizing dynamic real-time fusion, and improving the natural similarity of the vegetation ecological restoration system.
Post-Disaster Survey and Analysis of Glass Curtain Wall under Influence of Super Typhoon “Meranti”
Authors: Lin Bin 
Published: March 2020

Abstract
Typhoon “Meranti” made landfall in the city of Xiamen in Fujian province with the maximum wind speed 60 m/s in the center of the typhoon. It caused large economic losses in Xiamen with the severe damages in the glass curtain walls of high-rise buildings. Survey of damaged glass curtain walls was conducted right after the typhoon, including damage amount, damage type and damage level of glass curtain walls. Experimental structural experiments and numerical simulations of wind environment were performed to investigate the failure patterns of glass curtain walls. The causes of damage are analyzed with respect to design criterion, construction, and material. Finally, improvements on the criterion of glass curtain wall design, optimization of wind environment and construction method are proposed to reduce typhoon damage effectively in future.
Application of GM(1,1) Model with X(1)(n) as Initial Value in Deformation Prediction
Authors: Qiu Lijun , Zhang Bo , Zhou Zhanxue 
Published: March 2020

Abstract
The settlement data of a foundation pit monitoring point and the deformation data of a slope monitoring point are taken as the basis. With C# programming language as the development programming language, the GM (1,1) model with X(0)(1)as the initial value and the GM (1,1) model with X(1)(n) as the initial value are established respectively. The fitting results of the model data and the prediction results of the later data are compared and analyzed with the real value. It is found that the accuracy of data fitting and prediction results of GM (1,1) model with X(1)(n) as the initial value is better than that of GM (1,1) model with X(0)(1) as the initial value. In addition, it can meet the precision requirement of deformation prediction in short-term prediction.
Effects of Soil Type on Single Pile-Soil Gap and Force Acting on Pile Body under Low Cyclic Loading
Authors: Xiao Xiao , Heng Yi 
Published: March 2020

Abstract
OpenSees software was be used in this paper as an analysis platform to establish a single pile-soil nonlinear numerical model. The nonlinear mechanical properties of pile nonlinearity and pile-soil gap were being mainly considered in the model. The accuracy of the numerical model was verified by combining the full-scale quasi-static test results of a single pile, which from the literature results, showed that the established numerical analysis model could accurately simulate experimental hysteresis curves of the single pile and the sliding behaviour of the pile-soil interface, and verified the reliability of the model. Further comparison analysis for acting under different soils such as soft clay, medium clay and stiff clay. It was found that under the horizontal low-cycle loading, when the soil around the pile was changed from stiff clay to soft clay, the degree of separation of piles and soils, and the length of the free section increased. For the soft clay, the length of the free section was the longest, which reached 21.3% of the length of the pile. There were significant differences in the distribution of bending moment, shearing force and displacement for piles in three soils. The maximum bending moment, maximum shearing force values of the pile body in the stiff clay were the largest, and the position was closest to the surface and the lateral displacement and equivalent plastic hinge length were the smallest.
An investigation of seismic liquefaction damage and an anti-liquefaction technique for a gravity caisson wharf
Authors: Zhang Xiwen , Zhang Shuaifang , Wang Zhen , Zhang Linlin 
Published: March 2020

Abstract
Gravity caissons are widely used in the construction of coastal ports owing to their simplicity, high capacity, and easy construction. The verification of resistance to seismic liquefaction and earthquakes is necessary and important in the design and construction of coastal ports. In this study, a numerical program was developed based on elasto-plastic theory and a coupled finite element–finite difference method. The seismic resistance of a caisson wharf was assessed using the proposed program. Furthermore, gravel piles were designed to resist liquefaction-induced disaster. It was found that the lateral spreading of liquefied soil would cause large sliding and rotational deformation in the gravity caisson. Adding gravel piles, it can decrease the deformation of the caisson foundation, and improve the stability of the caisson wharf.
Research on Construction Method of Concrete Filled Steel Column
Authors: Yin Yong , Zeng Hong , Zheng Xiaolei 
Published: March 2020

Abstract
As a new type composite structure, concrete fill steel column has a good performance and is widely used in super high rise building. However, concrete pouring and quality control are challenges all the time. Combining with actual engineering projects, this article analyzes key and difficult points existing in concrete filled steel column construction and explores construction in different aspects like selection of construction method, simulated column construction and main construction method introduction. Hoping this article has some help for the similar projects later.
Fire Protection Design of Large-Scale Cold Storehouse in Modern Logistics Based on Risk Analysis and Countermeasure
Authors: Cao Yuanping 
Published: March 2020

Abstract
Cold storehouses in China have been developing rapidly which are centralizing, scaling up and functional subdividing. Cold Storehouse is especially energy-consuming building. Fire hazard of large-scale cold storehouses characterizes large fire compartment, refrigerating medium risk and detecting difficult. According to the relevant regulations at home and abroad, setting fire detecting system in cold storehouses, fire suppression apparatus, effectively organizing put out a fire and the contributory factors of reducing safe risk, all is analyzed in this paper. Then discuss fire prevention from the perspective of fire protection design and put forward the specific requirements for setting fire fighting and rescue site, fire apparatus, eject smoke and danger sources placement.
Research on the Fire of High-rise Residential Building Based on Pyrosim Numerical Simulation
Authors: Hu Guangxia 
Published: March 2020

Abstract
The pyrosim software is used to simulate the smoke characteristics of unit high-rise residential buildings, and the change rules of fire smoke characteristics such as smoke spread rate, visibility, harmful gas concentration, and fire temperature were obtained. The results show that when the fire occurs for 60 s, the environment of the fire site is suitable for evacuation, and the door state of the fire room has a great influence on evacuation. The results of numerical simulation can provide a theoretical reference for fire protection design and evacuation plan of unit high-rise residential buildings.
Experimental Study on The Flexural Capacity of Cold-Formed Thin-Walled Composite Wall
Authors: Wang Quan , Li Guohua , Di Yanqiang , Zhang Yuxia , Zhang Zhijie , Li Mengying 
Published: March 2020

Abstract
To C galvanized thin-wall steel (or thin-walled steel tube) as the skeleton, fiber cement and lightweight concrete composite wall, for three pieces of full scale the wall specimen (Light steel keel + fiber cement board, light steel keel + fiber cement board + lightweight concrete, light steel keel + reinforced expansion net + lightweight concrete) the flexural bearing capacity study, got all kinds of wall shear bearing capacity and displacement performance metrics. The test results show that the cold-formed thin-walled light-steel composite wall has good integrity and strong bending capacity, and the addition of light-steel keel significantly improves the ductility of the composite wall.