Situation and Prospect of H-beam with Corrugated Web

2013 ◽  
Vol 671-674 ◽  
pp. 559-564
Author(s):  
Xuan Liu ◽  
Jin Man Yan ◽  
Ren Wei Hu
Keyword(s):  
Mechanical Properties ◽  
Bearing Capacity ◽  
Future Development ◽  
Calculation Method ◽  
Research Status ◽  
Corrugated Web ◽  
The Future ◽  
Capacity Calculation ◽  
New Type ◽  
H Beam

The H-beam with corrugated web is a new type of H-beam, whose web is produced by substituting corrugated web for flat web. This paper reviews the research status on mechanical properties of H-beam with corrugated web at home and abroad recently, and its bearing capacity calculation method is summarized. Finally, the future development of H-beam with corrugated web is prospected. As can be seen by comparing, there is much more room for the new field of research.

scholarly journals Study on Flexural Bearing Capacity Calculation Method of Enclosure Pile with Partial Excision in Deep Foundation Pit

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Mingfeng Lei ◽  
Linghui Liu ◽  
Yuexiang Lin ◽  
Jin Li
Keyword(s):  
Flexural Strength ◽  
Bearing Capacity ◽  
Calculation Method ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Theoretical Derivation ◽  
Deep Foundation Pit ◽  
Practical Engineering ◽  
Capacity Calculation ◽  
Partial Excision

During deep foundation pit construction, the structural clearance intrusion, which is caused by the complex formation conditions and the inefficient drilling equipment, is usually detected due to the vertical deviation of piles. To meet construction requirements, pile parts intruding into the structural clearance are supposed to be excised. However, the sectional flexural strength of the pile is bound to decrease with partial excision, which would reduce the bearing capacity of the enclosing structure during construction. In this paper, a theoretical derivation of the normal sectional flexural strength of the partially excised circular pile is proposed. The derivation adopts the assumption of the plane section and steel ring equivalence and can be solved by the bisection method. Furthermore, the calculation method is applied to the pile evaluation of a practical engineering; also, the method is verified by the numerical method. The application results show that the excision of rebar and pile’s sectional area will cause a rapid linear decline in the sectional flexural strength. After excising 18 cm radial thickness of the circular pile (ϕ800 mm) and 6 longitudinal rebars, the sectional flexural strength of the pile decreases to 58% from the origin, which cannot meet the support requirement. The analysis indicates that pile reinforcements must be carried out to maintain the construction safety.

Research Status of Copper Foil Surface Treatment and Development of Novel Process

2017 ◽  
Vol 727 ◽  
pp. 43-51
Author(s):  
Wen Jing Wang ◽  
Xue Feng Liu
Keyword(s):  
Surface Treatment ◽  
Future Development ◽  
Copper Foil ◽  
Science Research ◽  
Research Progress ◽  
Foil Surface ◽  
Research Status ◽  
New Process ◽  
The Future ◽  
Brush Plating

Surface treated copper foil and its preparation is very important and widely used. The science research and enterprise competition always focus on the surface treated methods in the copper foil field. This paper summarized the typical surface treated processes of copper foil, and emphasized on research progress and problems of copper foil surface treated processes. The brush plating-dealloying treated process of copper foil was proposed based on the problems. The principle and research status of new process was introduced. At last, the future development of surface treated process and application prospect were forecast.

Survey and Forecast on Scheduling of Networked Control System

2014 ◽  
Vol 624 ◽  
pp. 477-480
Author(s):  
Yue Pan
Keyword(s):  
Control System ◽  
Future Development ◽  
Networked Control System ◽  
Networked Control ◽  
Research Status ◽  
The Future ◽  
Control Net

The emergence background of networked control system (NCS) is introduced. The basic problems and research status in NCS are surveyed. The current research status of NCS scheduling is analyzed emphatically. Finally the future development directions of control net-worked scheduling research are predicted.

The Material Mechanical Properties Reverse Calculation Method Bases on Depth-Sensing Indentation

2014 ◽  
Vol 881-883 ◽  
pp. 1842-1845
Author(s):  
Guo Li Xie ◽  
Feng Qin ◽  
Hong Liang Yang
Keyword(s):  
Mechanical Properties ◽  
Calculation Method ◽  
The Other ◽  
Depth Sensing ◽  
Micromechanical Properties ◽  
Calculation Process ◽  
The Future ◽  
Indentation Experiment

It introduced the depth-sensing indentation principle,characteristics,and the major applications and advantages in micromechanical properties and damage research. It focused on analyzing the typical load-depth test curve from the material depth-sensing indentation experiment, then talked about how the curve was used in the reverse calculation process for material mechanics properties.It can provide the technology route reference for the other metal mechanical properties research in the future.

Calculation Method Research of Shear Bearing Capacity for Frame-Sparse Gridiron Composite Wall

2012 ◽  
Vol 487 ◽  
pp. 232-236
Author(s):  
Xu Feng Jiang ◽  
Meng Guo ◽  
Cheng Hao Wu
Keyword(s):  
Bearing Capacity ◽  
Calculation Method ◽  
Resistance Mechanism ◽  
Bottom Layer ◽  
Masonry Structure ◽  
Frame Structure ◽  
Calculation Results ◽  
Shear Bearing Capacity ◽  
Capacity Calculation ◽  
Composite Wall

In order to enhance the anti-seismic performance of the frame structure and masonry structure with frame at bottom layer, combined shear wall consisting of frame and gridiron composite wall was proposed in this paper, and shear bearing capacity calculation method for the wall was researched. 1/2 scale frame-sparse gridiron composite walls were tested under reversed cyclic loading. Damage processes, load-bearing capacity and hysteretic curves characters of the walls were analyzed. Based on the experiments and reinforced concrete masonry walls data, the force features and shear resistance mechanism of the wall were analyzed, and general shear bearing capacity formula were put forward, and application methods under different conditions were given at the same time. Comparative analysis between calculation results and test results indicated that the formula was accurate enough, and can be referred to in the new construction and post-quake reconstruction of frame structure or masonry structure with frame at bottom layer.

Research Status and Future Development of Smart Materials and Structures

2013 ◽  
Vol 303-306 ◽  
pp. 32-36
Author(s):  
Li Jian
Keyword(s):  
Future Development ◽  
Smart Materials ◽  
Development Potential ◽  
Research Status ◽  
Smart Materials And Structures ◽  
Key Technologies ◽  
The Future ◽  
Great Development ◽  
At Home

As a newly emerging frontier interdiscipline, smart materials and structures possesses the great development potential and wide application prospect, and has become one of the research focuses at home and abroad.The research status of smart materials and structures is summarized, and its key technologies are analyzed. the future development of smart materials and structures is presented.

Investigation of the Axial Bearing Capacity of the Discontinuous-Tube-in-Core Concrete Filled Steel Tubular Column-Slab Joint

2008 ◽  
Vol 400-402 ◽  
pp. 901-910 ◽  
Author(s):  
Fu Jun Liu ◽  
Jian Cai
Keyword(s):  
Mechanical Properties ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Steel Tube ◽  
Working Mechanism ◽  
Engineering Applications ◽  
New Type ◽  
Cfst Columns ◽  
The Cost ◽  
Core Concrete

Based on the principle of restrained concrete, this paper presents a new-type concrete filled steel tubular column-slab joint. This new-type joint is characterized by keeping the concrete floor slab continuous while breaking the steel tube of the column for the joint, thus joining the slab and the concrete filled steel tubular(CFST) columns at the top and the bottom of the slab. The joint has the advantage of transferring loads dependably, constructing conveniently and saving on the cost. Three groups of experiments (21 specimens contained) were performed to test the safety of the joint and investigate its axial bearing capacity. The results show that the joint is dependable and feasible in engineering applications. In addition, this paper studies the working mechanism and mechanical properties of the joint under axial compression, discusses the factors to influence its axial bearing capacity, and finally brings out the formula of the joint’s bearing capacity under axial compression that adapts to engineering applications, which conservatively evaluate the result of the experiments.

Status and Prospects of Indirect Squeeze Casting Technology

2013 ◽  
Vol 634-638 ◽  
pp. 2885-2888
Author(s):  
Fan Sheng Meng ◽  
Bo Lin ◽  
Jian Lei Fan
Keyword(s):  
Future Development ◽  
Squeeze Casting ◽  
Research Status ◽  
Casting Technology ◽  
The Future

Because of the unique advantages of indirect squeeze casting, has become a heated topic of current national research. Indirect squeeze casting research status and current problems are studied. Finally, come out the prospect for the future development.

Experimental Verification on Bearing Capacity of Concrete-Filled Steel Tube Short Columns Based on Unified Theory

2010 ◽  
Vol 163-167 ◽  
pp. 1999-2004 ◽  
Author(s):  
Jing Ji ◽  
Wen Fu Zhang ◽  
Hai Yan Sui
Keyword(s):  
Mechanical Properties ◽  
Bearing Capacity ◽  
Axial Force ◽  
Calculation Method ◽  
Steel Tube ◽  
Ultimate Bearing Capacity ◽  
Unified Theory ◽  
Concrete Filled Steel Tube ◽  
Short Columns ◽  
Load Displacement

To verify the rationality of calculation method on unified theory of concrete - filled steel tube short columns under axial force, Experimental Study on mechanical properties of the 12 concrete -filled steel tube short columns with 7 different sections under axial force is preformed. Failure process and Failure mode of them are observed, load-displacement curves are obtained, and the influence for confinement coefficient ξ to the mechanical properties of short columns under axial load is analyzed. Based on load-displacement curves, ultimate bearing capacities of them are given. By comparison for ultimate bearing capacity obtained by testing and the bearing capacity according to unified theory, the results show both are in good agreement. Calculation method on unified theory of concrete - filled steel tube is fit for calculating ultimate bearing capacity of short columns under axial force with different sections, and the results are safe and reliable.

TECHNOLOGIES FOR STRAIN ASSESSMENT FROM WHOLE BONE TO MINERALIZED OSTEOID LEVEL: A CRITICAL REVIEW

2016 ◽  
Vol 16 (07) ◽  
pp. 1630002
Author(s):  
LI REN ◽  
ZHE WANG ◽  
LINGWEI HUANG ◽  
PENGFEI YANG ◽  
PENG SHANG
Keyword(s):  
Mechanical Properties ◽  
Future Development ◽  
Critical Review ◽  
Deep Understanding ◽  
Bone Strain ◽  
Systematic Assessment ◽  
Physiological Conditions ◽  
Technological Advances ◽  
The Future ◽  
Systematic Understanding

Bone has distinctive structures and mechanical properties at the whole bone, perilacunar and mineralized osteoid levels. A systematic understanding of bone strain magnitudes at different anatomical levels and their internal interactions is the prerequisite to advances in bone mechanobiology. However, due to the intrinsic shortcomings of the strain-measuring technologies, the systematic assessment of bone strain at different anatomical levels under physiological conditions and a deep understanding of their internal interactions are still restricted. To promote technological advances and provide systematic and valuable information for mechanical engineers and bone biomechanical researchers, the most useful methods for measuring bone strain at different anatomical levels are demonstrated in this review, and suggestions for the future development of the technologies and their potential integrated applications are proposed.

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