bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on The Staff Regularity and Building Energy Efficiency of High-star Hotel in Urumqi
Authors: Sun Wanqi , Zhang Haiyue , Zhang Xuefeng , Sun Wanqi 
Published: December 2019

Abstract
Urumqi is located in the arid area of Northwest China. Through field investigation, the author finds that the energy consumption of high-star hotels in Urumqi is large in off-season tourism, but the occupancy rate is low, which causes a lot of energy waste. According to the data analysis of law of indoor activity in each area of high star hotel in Urumqi, this paper puts forward that through building buffer space, according to the different function of building, different treatment should be carried out for different use frequency of building space. According to different use temperature requirements, the use space can be arranged from the inside to the outside in order to form a gradient space, and dividing the various areas of the hotel into heating space, transition space and temperature damping space can achieve the purpose of energy saving effectively.
Analysis and design of link slabs in jointless ramp viaduct
Authors: Xiao Yu , Bandara Theekshana , Dassanayake Anushka 
Published: December 2019

Abstract
Due to the internal and external movement of the bridge deck, it is necessary to provide expansion gaps between multi span bridge decks. However the water leaking and debris trapped in the expansion joints will cause high maintenance cost. Therefore an alternative to eliminate expansion joints is vital. This paper contains comparison between the 3D, 2D model and a manual analysis of a link slab in a curved ramp bridge. This link slab is modelled as Finite Element Model using SAP 2000 software as a global model with the superstructure model for the calculation of the global effect from temperature, shrinkage, and creep with live HA, HB loads and superimposed dead loads and the most unfavourable conditions are identified.
Water environment protection and monitoring management during bridge construction in water source conservation areas
Authors: Wang Xiao , Zhang Dong , Liu Huan 
Published: December 2019

Abstract
Pollutants generation links of wading bridge construction and the sources of waste water were summarized. Some effective measures were presented to prevent water from pollution and the surface water environment has been monitored upstream and downstream of Jinfeng Bridge, Hu kengcun Bridge and Niu Wukou Bridge. The monitoring results indicate that most monitoring items meet the II-level environmental quality standards of surface water. This good tendency is mainly due to the implementation of strict water resources protection measures during the construction process, which provide technical support for water environment safety of Qiandao Lake.
Applying BIM and 3D laser scanning technology on virtual pre-assembly for complex steel structure in construction
Authors: Ying Chunli , Zhou Yin , Han Daguang , Qin Guocheng , Hu Kaixin , Guo Jieming , Guo Tong 
Published: December 2019

Abstract
Steel structure needs to be assembled before the components are transported to the site to ensure the installation of the steel structure successfully. The traditional assembly is a physical assembly method, which needs an amount of equipment, occupies large areas and can be labor and time-consuming. To address these issues, industrial photogrammetry has been developed to acquire data, and the steel structure has been virtually assembled in a virtual environment. The high-precision data acquisition of steel components is now carried out by using 3D laser scanner, and therefore, the feature data of those components can be automatically extracted by programming. As a result, the accurate linear shape of the post-splicing components can be extracted after completing the precise assembly of the steel structure in a virtual environment, which is significant for the subsequent mechanical analysis.
Structural characteristics of mixed plantation of pinus massoniana and oak in danjiangkou reservoir area
Authors: En Liu , Chunqian Jiang , Xudong Zhang , Lianghua Qi , Lei Zhang , Zengwang Yao , Hui Wang , Yanfeng Bai 
Published: December 2019

Abstract
In this paper, the frequency distribution of DBH and DBH of masson pine and oak trees in mixed forest was simulated by using normal distribution, and the relationship between DBH and tree height was fitted by 11 common curve models. The power model can well simulate the relationship between DBH and tree height.
Detection and Reinforcement of A Bridge
Authors: Wang Yongwei 
Published: December 2019

Abstract
Combined with the disease situation of a certain bridge, through the longitudinal and transverse checking calculation of the bridge structure, after fully grasping the stress condition of the structure, a targeted reinforcement design scheme is developed, and the comprehensive analysis and checking calculation of the reinforced structure are carried out to confirm the reinforcement effect, which provides a reference for similar engineering design.
Preliminary Study on Green Building Design Review System Based on BIM
Authors: Ying Guo 
Published: December 2019

Abstract
Sustainable development is a common concern in today’s world. In the field of urban construction, it has also begun to develop from traditional high-consumption buildings to green and efficient buildings. Green buildings have become the main trend of world architectural development. From the perspective of design and application of architectural design review system, combined with the concept of BIM technology, green building design and related requirements, this paper proposes to use computer technology to build BIM building information model, and to construct spatial geometric information, functional information, building materials and Integrated management of equipment. Besides other related data provides relevant basis for the design of green buildings. At the same time, the formation of the green building design review system can realize the green building evaluation function by visualizing the three-dimensional data information.
Comparative Study on Development, Application and Benefit of Typical Electric Heating Projects in China
Authors: Zhao Baoguo , Xie Yan , Zhang Jian , Lu Xin , Yue Liang , Wang YongLi 
Published: December 2019

Abstract
In recent years, the continuous severe fog and haze weather in China has caused serious damage to people’s health. In order to make the public aware of the characteristics of electric heating, this paper first analyzes the technical scheme of electric heating and provides suggestions for the choice of electric heating mode. Then, taking a project in a certain area of North China as an example, from the aspects of annual cost, energy consumption, pollutant discharge, etc., the application of electric heating and other heating methods to analyze the economic, environmental and social benefits, and the overall benefit of electric heating is quantitatively evaluated. According to the evaluation results, some suggestions for the healthy development of electric heating are provided, which has important practical reference significance for the implementation of electric heating.
Study on the Reconstruction of Existing Bridges with Composite Structure
Authors: Yao Wen , Ma Jianxun , Zhang Yuchen 
Published: December 2019

Abstract
Cable-stayed bridges have their unique advantages, which are suitable for urban bridges with higher requirements for landscape improvement and upgrading. In the process of urban bridge renovation with landscape demand, the advantages of cable-stayed bridge in shape and structure are combined to provide more excellent scheme for urban bridge renovation. In this paper, the existing continuous girder bridge is reconstructed by adding cables. The internal force and displacement before and after structural renovation are calculated by Midas civil 2019. It can be seen that the internal force of the structure can be significantly improved by increasing the cables, and the maximum and minimum bending stress can be reduced by 40% and 20% respectively. Comparing and analyzing different retrofitting methods, the layout of cables has the most obvious effect on the maximum stress of the whole structure.
Study on the Variogram Analysis Methods of 3D Geological Modeling for Sandstone Reservoirs
Authors: zuowei Liu 
Published: December 2019

Abstract
Variogram analysis is a necessary step for 3D stochastic modeling. Different variogram settings will directly affect the final distribution characteristics of model attributes. Setting the variogram parameters on the optimization results of sedimentary types of sub-units has become a key step in geological modeling. In this paper, the influence of variogram parameters on the simulation results of reservoir properties is studied to improve the analysis method of the variogram. This paper is for typical river-delta sedimentary reservoirs, specifically taking the SII7+8 layers as the research object. Multiple sedimentary microfacies types, including river, abandoned river, floodplain, natural dyke, coexist and show highly heterogeneous in the SII7+8 layers. On this basis, the reservoir is divided into 3 types of sand bodies and 11 kinds of sedimentary microfacies according to the effective thickness, sedimentary conditions, scale and shape of main sand bodies to study the distribution characteristics and extension scale of different sedimentary types in plane, so as to determine the variogram parameters of different sand body types, and accurately simulate the reservoir property distributions. The process in variogram analysis methods can further improving the accuracy of 3D geological modeling.
Study on the Utilization of Vacant Houses in Rural Exurbs Under the Background of Rural Revitalization Strategy by Taking Shenjia Village in Hunan Province as an Example
Authors: Zhang Ying , Chen Zuzhan , Sun Hongkai , Zhang Shili , Liu Haoqian 
Published: December 2019

Abstract
Large-scale urbanization construction leads to a large number of idle rural houses, resulting in a waste of social resources. The rural revitalization strategy proposed at the 19th National Congress puts forward higher requirements for the construction of new socialist countryside. In order to solve the problems of the rural vacant houses, this article analyzes the necessity of current rural exurb construction and rural vacant house utilization from the perspective of social development and policies. By virtue of investigation on the problems of vacant houses in Shenjia village, Loudi city, Hunan province, this article puts forwards three modes, namely the rural pension mode, rural short rent mode and the home stay facility reception mode as countermeasures for utilizing the vacant houses. These modes with independence from large-scale investment and special geographical location and good universality are capable of getting rid of the large-scale demolition and reconstruction phenomenon of rural construction and servicing the national development strategy.
Studying on the characteristics of vibration effect of the blasting of excavating anchorage tunnels of Chishui River Super Bridge
Authors: Dan Zhang , Yong Guo , Caiying Zhen , Zheng Cheng 
Published: December 2019

Abstract
The section of anchorage tunnels, is large, there are variable contour and variable areas and small distance among anchorage tunnels and main tunnels, and easy to form unloading cracks or boulder to bias arch, so blasting excavation maybe easily damage the middle pillars and surrounding rock and to collapses the entrance of holes, which will affect the operation of bridge in the future. For the structure, spatial distribution state of anchorage tunnel and the highway tunnels, and spatial relationship among its, based on the topographic feature, geological structure, rock and lithology of the Sichuan bank of Chishui Rive Super Bridge, according to the correlation between blasting source factors and the energy density distribution characteristic of blasting seismic wave, combined with monitoring, the blasting vibration effect characteristics of tunnel anchorage excavation are studied on, the blasting technology is optimized, and the support are strengthen to ensure the stability of the surrounding rock, middle pillar and mouth, so that the construction will be done successfully.
Temperature and humidity characteristics of residential buildings in northern China
Authors: Zhou Jinjun , Chu Qi , Zhang Yongxiang 
Published: December 2019

Abstract
Buildings are one of the typical underlying surfaces of cities, but the study of hydrological effects of buildings is a weak link in urban hydrological research. Indoor temperature and humidity are important embodiments of the hydrological effect of building water activity. Beijing, as the capital of China, is selected as the representative research area in north China. The variation characteristics of temperature and humidity of residential buildings, as well astheir relationship with each other, are analyzed through experimental monitoring. The result showsthat human water use activities in buildings will increase indoor humidity. The indoor humidity is higher than the outdoor humidity in the sunny days of spring, summer andwinter, while it is lower than the outdoor humidity through rainy days and the whole autumn. Both indoor and outdoor humidityreach peak and nearly the same at night, but the difference between the indoor and outdoor humidity is obvious during the daytime. Based on the results we can draw the conclusion that (1) indoor water use activities canproduce obvious water vapor diffusion; (2) In northern China, the indoor humidity of the residential buildings is higher than the outdoor humidity, and will flow to outdoors during most sunny days; (3) among all the types of the rooms in the resendital building, bathroom is the largest contributor to water vapor dissipation. We suggest that water vapor dissipation in buildings should be taken into account in the study of evaporation in urban areas since it may profoundly affect the urban hydrological cycle.
Opening Angle and Impact Force Analysis of Different Types Flap Valve in Pumping Stations
Authors: Wang Zhixiang , Du Yueting 
Published: December 2019

Abstract
Based on the energy method, the motion equation of the flap valve is deduced. Combining with the example of Bailizhou Pumping Station, the opening angle and impact force of the flap valve with different forms of installation (free rollover, free suspended, covers), different valve pages ( single-leaf and double-leaf ) and different materials ( steel and composite materials ) are analyzed and calculated. Under the same conditions, the results show that: for single-block flap valve of different installations, opening angle of free rollover flap valve is bigger than free suspended flap valve at 22°, and bigger than cover flap valve at 12°, impact force of three installation forms flap valve is close. For different valve pages, opening angle of double-leaf flap valve is slightly larger than the single-leaf, impact force of free rollover double-leaf flap valve is 42% of the single-leaf, and cover double-leaf flap valve is 49% of the single-leaf. Comparing different materials, opening angle of free rollover composite flap valve is 4% bigger than the steel flap valve, its impact force is 9.6% smaller than steel flap valve, and opening angle of free suspended composite flap valve and cover composite flap valve is 10%∼15% bigger than their steel flap valve, impact force of free suspended composite flap valve is 39.5% smaller than the steel flap valve, and cover composite flap valve is 28.5% smaller than the steel flap valve.
The Influence of Layout on Energy Performance of University Building
Authors: Dai Jin , Jiang Shuguang , Li Jie , Xu Xin , Wu Mengyun 
Published: December 2019

Abstract
This paper analyzes the impact of the layout of university building architectural design on the annual energy consumption of the south and north classroom in the severe cold regions of Xinjiang. The aim is to reduce the waste of energy in university buildings and promote sustainable energy and environmental development. Using the Shihezi meteorological data, the energy performance of the four university architectural design layouts proposed by the hypothesis was numerically simulated by Energy Plus, and the results obtained were compared and analyzed. Through research, the atrium has the greatest impact on the energy consumption of the classrooms inside the building. The most energy-efficient university building layout is designed with an Inside corridor. Energy-efficient and sustainable solutions are designed to meet the energy needs of the classroom through the layout of the building.
Study on the Performance of Box-Shaped Steel Columns under Blast Loading
Authors: Jia Geng , Guijuan Qian , Xiaotong Peng , Taochun Yang 
Published: December 2019

Abstract
To study on the performance of box-shaped steel columns with fixed end constraints under blast loading, the dynamic response of box-shaped steel columns under different loading conditions is analyzed through ANSYS/LS-DYNA software. Moreover, the change process of stress, deformation, as well as failure model is studied. Meanwhile, parameter analysis method is used to assess the influence of blast loading and width-thickness ratio on the failure model and dynamic response. The results show that local deformation is a significant feature of thin walled box steel columns under blast loading. With the increase of width-thickness ratio, the column lateral displacement is increased under blast loading. Reasonable design of influence parameters can ensure that box shaped steel columns have better blast-resistant ability.
Numerical Investigation of Pallet Structure with Annular Slot in MOVPE Chamber
Authors: Li Zhiming , Lu Ligen , Li Hailing , Guo Runqiu , Feng Lansheng 
Published: December 2019

Abstract
A pallet structure with an annular slot is proposed in the perpendicular MOVPE chamber by electromagnetic heating Compared with the conventional pallet, the shape of the slot changes the directions of the thermal conduction in the pallet, which makes the temperature distribution of the substrate more uniform. The optimized pallet structure which makes the most uniform temperature profile of the substrate is also given. In addition, the intervals of the applied parameters such as the current frequency, current strength and coil turns which keep the stable change of the substrate temperature are also obtained, by analyzing the change of the substrate temperature with the parameters. When one of the parameters is changed in the interval, the temperature magnitude can be adjusted while ensuring a certain uniformity of the temperature. This is beneficial to control the growth of the thin film.
The Determination of Optimal Time for Bridge Preventive Maintenance Based on Particle Swarm Optimization Algorithm
Authors: Wang Wei 
Published: December 2019

Abstract
This paper constructs the full life cycle cost model, durable life extension and maintenance period mathematical model for preventive maintenance of bridges, and introduces software to calculate the multiple regression equation of maintenance effects to durable life extension years and maintenance costs. Particle swarm optimization algorithm is used to select the best time selection model for comprehensive and integrative control of three targets including preventive maintenance effects, maintenance costs and durable life extension of bridges.
Comparison of Hangers’ Tensioning Sequence of Diagonal-span Arch Bridge
Authors: Qi Qin , Wang Hongfei 
Published: December 2019

Abstract
The Diagonal-span arch bridge is novel in shape and complicated in force. In order to ensure the safety of the bridge during the tensioning of the hanger, Midas Civil was used to establish a three-dimensional finite element model and four kinds of tensioning scheme are compared. This study analyses the deformation and stress of arch rib, girder and hangers to determine a reasonable tensioning sequence. The results show: On the basis of satisfying the lateral stability of the arch rib, the tensioning sequence from the two sides to the middle have the smallest stress and reasonable deformation. This study can provide reference for similar bridges.
Simulation-Based Speed-Density Relationship Model of Highway Interchange
Authors: Liu Yanwei 
Published: December 2019

Abstract
To study the law of traffic wave transmission in highway interchange, this study analysed the traffic characteristics of the interchange section, developed an improved speed-density model of highway interchange based on 5PL logistic model by modifying the turning density and the mixing rate coefficient. The correction coefficients Δ1, Δ2 related to the traffic of the ramp were introduced and quantified by the nonlinear fitting and multivariate linear regression analysis of the simulation data under different traffic volumes combinations. The actual operation data of the interchange section was collected on site, and the difference between the calculated value and the actual value of the model was compared to verify the correctness and versatility of the model.
Research on Vibration Characteristics of Urban Substation Building and Transformer
Authors: Yuchao Ma , Juan Mo , Meng Nie , Xiang Li 
Published: December 2019

Abstract
The problem of vibration of the buildings and transformers in the urban substation has becoming more and more socially concerned. The urban substation and its associated building are taken as the research object. the vibration tests and modal shapes of the building and each floor slab were carried out. The transformer vibration and its noise were transmitted with obvious attenuation in the structural floor slab. The vibration transmission into the lower floor slab was higher than that of into the higher one. The further away from the transformer room, the vibration characteristics are weak, and the attenuation is no longer significant. At last, the finite element model was established for the urban substation. The transformer and floor slab vibration went through the simulated analysis and the consistent analysis results were obtained.
A novel high-order Voronoi algorithm and its application in affected coverage of health city assessment
Authors: Shuguang Deng , Guodong Zhong , Wenshu Li 
Published: December 2019

Abstract
The work of China’s urban health impact assessment (HIA) is still in the exploratory stage. From the spatial perspective of urban planning, using the natural topological characteristics of Delaunay Triangle, the high Order Voronoi Diagram algorithm of the order Delaunay Triangle data structure is applied in practice. This algorithm can deal with the k nearest neighbors and the mutual distance relationship, which can be effectively applied to the definition of the impact scope of healthy city evaluation, thus providing a new auxiliary method for health city evaluation research.
Analysis of Characteristics of Soluble Ion Pollution in Atmospheric PM2.5 in Shenyang City
Authors: Xue-yu Bai , Hai-bo Li , Ying-hua Li , Xiao-ming Zhao 
Published: December 2019

Abstract
The concentration characteristics of water-soluble ions in atmospheric fine particulate matter PM2.5 in Shenyang City were studied. Correlation analysis was carried out on the tested components. The results showed that SO42- and NO3- in the water-soluble ion concentration of PM2.5 in Shenyang City. The three ions of NH4+ account for a higher total ion concentration, accounting for 35.2%, 34.7%, and 11.6%, respectively. It was found that due to the unique terrain and climate of Shenyang, the spring pollution was more serious. Correlation analysis showed that the main forms of water-soluble ions in PM2.5 in Shenyang City were NO3NH4, KNO3, MgSO4, CaSO4 and so on.