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Online since: May 2011
Authors: Xin Hui Zhao, Jin Li
Research of Mechanical Property on High-Rise Building Shear Wall
—Influence of Border Concealed Column toward Shear Wall Stiffness
Xinhui Zhao1, a, Jin Li2, b
1Graduate Class 0806, School of Civil Engineering, Xi'an University of Architecture and Technology, Xi’an, Shanxi, 710055, China
2Computer Department, School of Civil Engineering, Xi'an University of Architecture and Technology, Xi’an, Shanxi, 710055, China
avsmepp@gmai.com, blijinjsj@xauat.edu.cn
Keywords: High-Rise Building; Shear Wall; Finite Element Method; Rectangle Unit; Concealed Column
Abstract.
When it comes to multi-layer structures, the effect of horizontal load (internal force and displacement) gradually increases and for the high-rise structures, the horizontal load and earthquake resistance become the controlling factors.
High-rise building structure is essentially a vertical cantilever and affected by lateral wind and seismic loads.
Writing a program and building a model for the structural system of ten-story high-rise building mentioned in section 2 as below: (1)Analytical method refers the elastic plane stress theory, analytical type is static analysis, and analysis content is the lateral displacement of whole wall which is affected by inverted triangle wind load and the impact on the wall stiffness affected by dark columns end
When it comes to multi-layer structures, the effect of horizontal load (internal force and displacement) gradually increases and for the high-rise structures, the horizontal load and earthquake resistance become the controlling factors.
High-rise building structure is essentially a vertical cantilever and affected by lateral wind and seismic loads.
Writing a program and building a model for the structural system of ten-story high-rise building mentioned in section 2 as below: (1)Analytical method refers the elastic plane stress theory, analytical type is static analysis, and analysis content is the lateral displacement of whole wall which is affected by inverted triangle wind load and the impact on the wall stiffness affected by dark columns end
Online since: October 2015
Authors: Lelya Khajiyeva, Askhat Kudaibergenov
However, analyzing the stability and vibrations it is also important to consider the drill string in the form of a cylindrical shell which is affected by diverse loadings and factors of the environment.
This property qualitatively distinguishes the behaviour of shells at the loss of stability from the behaviour of rods and plates.
We analyzed the influence of shell's length, pressure of a gas flow, material properties and compressing load on the magnitudes and modes of shell vibrations.
As a result, it was found out that the second and third modes substantially affect the nature of undulation in the median surface of a shell.
Advances in Mechanical Engineering (2014)
This property qualitatively distinguishes the behaviour of shells at the loss of stability from the behaviour of rods and plates.
We analyzed the influence of shell's length, pressure of a gas flow, material properties and compressing load on the magnitudes and modes of shell vibrations.
As a result, it was found out that the second and third modes substantially affect the nature of undulation in the median surface of a shell.
Advances in Mechanical Engineering (2014)
Online since: May 2013
Authors: Shi Ming Dong, Ji Gang Xu, Qingyuan Wang
Introduction
A large number of experimental results have confirmed that mechanical properties of rocks are anisotropic, such as the tensile/compressive strength [1], drillability [2,3], fracture toughness [4], and so on.
Anisotropy is a common property of many typically rocks [5].
SPE 16658, 1987 [7] A Lubinski, Woods H B., Factors affecting the angle of inclination and dog-legging in rotary bore holes.
Anisotropy is a common property of many typically rocks [5].
SPE 16658, 1987 [7] A Lubinski, Woods H B., Factors affecting the angle of inclination and dog-legging in rotary bore holes.
Online since: August 2011
Authors: Xiao Yu Gu, Philippe Velex
Finally, the influence of planet position errors at high speeds is analysed and it is shown that dynamic effects may substantially affect the load sharing properties in planetary gears.
Fig. 4 shows the load distribution factors of the 4-planet example defined in Table 1 for a range of torques and tangential pin-hole errors on planet #1.
Singh: Journal of Mechanical Design Vol. 131 (2009), p. 021007 [4] V.
Singh: Journal of Mechanical Design Vol. 130 (2008), p. 041701 [6] V.
Becquerelle: Journal of Mechanical Design Vol. 129 (2007), p. 95
Fig. 4 shows the load distribution factors of the 4-planet example defined in Table 1 for a range of torques and tangential pin-hole errors on planet #1.
Singh: Journal of Mechanical Design Vol. 131 (2009), p. 021007 [4] V.
Singh: Journal of Mechanical Design Vol. 130 (2008), p. 041701 [6] V.
Becquerelle: Journal of Mechanical Design Vol. 129 (2007), p. 95
Online since: March 2011
Authors: Jing Li, Xiao Guang Zhang, Zhan Li Miao
The spinning conditions such as the compositions of the spinning dope, the bore liquid, the spinning temperature and the air gap length etc. affect the morphology and separation performance of hollow fibers[5,6].
Polyacrylonitrile(PAN) is one of the popular membrane materials used in the field of dialysis for its good mechanical and chemical stability and also for its good biocompatibility[7-9].
The PAN powder, PEG400 and DMF solvent were mixed at 35℃ in the dope tank, followed by mechanical stirring.
Since hollow fibers are self supporting ,the macrostructures such as the fiber diameters and wall thickness are very important for the mechanical properties[1].
The results show that the spinneret dimension is the key factor that determines the macrostructure of the membrane, the bigger the spinneret dimension the bigger the fiber outer diameters.
Polyacrylonitrile(PAN) is one of the popular membrane materials used in the field of dialysis for its good mechanical and chemical stability and also for its good biocompatibility[7-9].
The PAN powder, PEG400 and DMF solvent were mixed at 35℃ in the dope tank, followed by mechanical stirring.
Since hollow fibers are self supporting ,the macrostructures such as the fiber diameters and wall thickness are very important for the mechanical properties[1].
The results show that the spinneret dimension is the key factor that determines the macrostructure of the membrane, the bigger the spinneret dimension the bigger the fiber outer diameters.
Online since: August 2013
Authors: Da Hai You, Yi Long Li, Kai Pan, Ke Tian, Ke Wang
Transformer failure is usually caused by insulation aging, the external accessory failure, overload and other factors.
The Analysis of Transformer’s Fault Factors Development Mechanism of Internal Latent Fault.
During the operation process, the chemical structure of internal insulating materials is changed by the influence of heat, electricity, water, oxygen etc, which affects its mechanical properties, electrical properties and thermal properties [10].
Because of the influence of the uncertainty factors (weather, design defects, human factors etc), the fault of transformer accessory is usually the sudden and random fault.
These factors increase the difficulty to estimate the transformer outage probability.
The Analysis of Transformer’s Fault Factors Development Mechanism of Internal Latent Fault.
During the operation process, the chemical structure of internal insulating materials is changed by the influence of heat, electricity, water, oxygen etc, which affects its mechanical properties, electrical properties and thermal properties [10].
Because of the influence of the uncertainty factors (weather, design defects, human factors etc), the fault of transformer accessory is usually the sudden and random fault.
These factors increase the difficulty to estimate the transformer outage probability.
Online since: November 2014
Authors: Adrien Chaussinand
Subsequently a dynamic thermal model was created, using the extracted thermal properties, by means of Pleiades+Comfie software.
The regulatory air renewal is ensured by a mechanical ventilation double flow required for obtaining the label.
Controversy of straw thermal characteristics Thermal conductivity and capacity of straw If today many materials have well-defined properties, extensive research on straw has shown that straw characteristics vary a lot depending on publications and tests.
Many factors can affect the thermal straw wall resistance.
For a straw, these factors are the type of straw employed, the water content, the density of the bale but also the void between each bale, the density of the coating into the interstices, the orientation of fibers, the nature and thickness of the coatings.
The regulatory air renewal is ensured by a mechanical ventilation double flow required for obtaining the label.
Controversy of straw thermal characteristics Thermal conductivity and capacity of straw If today many materials have well-defined properties, extensive research on straw has shown that straw characteristics vary a lot depending on publications and tests.
Many factors can affect the thermal straw wall resistance.
For a straw, these factors are the type of straw employed, the water content, the density of the bale but also the void between each bale, the density of the coating into the interstices, the orientation of fibers, the nature and thickness of the coatings.
Online since: November 2012
Authors: Wei Ping Tian, Jia Chun Li, Peng Li Li
Landslide many kinds of, wide distribution , great harm, It threats people's lives and properties, and blocks the economic development there.
It is mainly through the engineering geology survey, according the main factors of influence landslide stability, analysis the possible way of deformation and instability of mechanical mechanism, can qualitative explain was given evaluation landslide stability situation and the development trend.
Its advantage is synthetically considered the influence factors of landslide stability, make fast evaluation of landslide stability state and development trend.
By data analysis, six factors are chosen as the input: average slope, slope of the invading front, sliding surface slope, the maximum daily rainfall, the recent slide situation, human engineering activities.
By input he influence factors of landslide stability analysis as the network input values, according to output results to analyze the stability of the landslide.
It is mainly through the engineering geology survey, according the main factors of influence landslide stability, analysis the possible way of deformation and instability of mechanical mechanism, can qualitative explain was given evaluation landslide stability situation and the development trend.
Its advantage is synthetically considered the influence factors of landslide stability, make fast evaluation of landslide stability state and development trend.
By data analysis, six factors are chosen as the input: average slope, slope of the invading front, sliding surface slope, the maximum daily rainfall, the recent slide situation, human engineering activities.
By input he influence factors of landslide stability analysis as the network input values, according to output results to analyze the stability of the landslide.
Online since: June 2021
Authors: Ubolrat Wangrakdiskul, Purinut Maingam, Natthakitta Piyarat
Effects of boric acid on the physical properties of ceramic bodies were investigated.
Therefore, the results showed low shrinkage led to high water absorption, but did not affect the mechanical strength [4].
Table 3 The physical properties and fluxing agent of 4 groups fired at 850°C (Group A) Group no.
Table 4 The physical properties and fluxing agent of 4 groups fired at 900°C (Group B) Group no.
In addition, formula A2-0 fired at 850°C (see Fig. 1c) that a large porous structure is formed by incorporating sediment soil affecting in low flexural strength than formula B2-0 fired at 900°C (see Fig. 1d).
Therefore, the results showed low shrinkage led to high water absorption, but did not affect the mechanical strength [4].
Table 3 The physical properties and fluxing agent of 4 groups fired at 850°C (Group A) Group no.
Table 4 The physical properties and fluxing agent of 4 groups fired at 900°C (Group B) Group no.
In addition, formula A2-0 fired at 850°C (see Fig. 1c) that a large porous structure is formed by incorporating sediment soil affecting in low flexural strength than formula B2-0 fired at 900°C (see Fig. 1d).
Online since: November 2012
Authors: Liao Yuan Zhang, Chao Wang, Ke Rang Zou
Experimental Study of Ultrasonic Vibration Drilling Ceramic Material
Kerang Zou 1,a, Chao Wang 2,b, Liaoyuan Zhang 3,c
1Shenyang ligong University, Engineering Practice center, Shenyang 110159,China
2Shenyang ligong University, Mechanical engineering Institute, Shenyang 110159,China
3Shenyang ligong University, Mechanical engineering Institute, Shenyang 110159,China
akrzou@sina.com,bzuimeidefengjing@126.com, czly6217@163.com
Keywords: ceramic material; machining; drilling; Experimental research
Abstract According to the high frequency vibration of the diamond tool and feed motion of the machine tool, the kinematic model of ultrasonic vibration machining was established by superposition principle.
According to the size and property of the tested signal, select the limits and tap position to increase the precision and reduce noise.
Fig 3 Rotary ultrasonic machining experiment station 1 – transducer 2 – horn 3 – tools 4 – force measuring instrument 5 –ultrasonic generator 6 –worktable 7–ZS4120 desktop drilling attack dual-use machine drilling machine 2.1 On selecting the parameter of drilling There are several factors that affect the depth of drilling, especially the cutting speed and material feed.
The size of the swing can affect the quality of the hole and the life of the cutter and so on.
Different working condition has different optimized amplitude. 3 Analysis of ultrasonic vibration drilling influence factors 3.1 Drilling force research Fig 4 Schematic diagram of drilling force test Measuring principle of drilling force is shown in Fig 4.
According to the size and property of the tested signal, select the limits and tap position to increase the precision and reduce noise.
Fig 3 Rotary ultrasonic machining experiment station 1 – transducer 2 – horn 3 – tools 4 – force measuring instrument 5 –ultrasonic generator 6 –worktable 7–ZS4120 desktop drilling attack dual-use machine drilling machine 2.1 On selecting the parameter of drilling There are several factors that affect the depth of drilling, especially the cutting speed and material feed.
The size of the swing can affect the quality of the hole and the life of the cutter and so on.
Different working condition has different optimized amplitude. 3 Analysis of ultrasonic vibration drilling influence factors 3.1 Drilling force research Fig 4 Schematic diagram of drilling force test Measuring principle of drilling force is shown in Fig 4.