Trends and Development of Precast Concrete Closed Spandrel Arch Bridge Systems

2015 ◽  
Vol 802 ◽  
pp. 295-300 ◽  
Author(s):  
Geem Eng Tan ◽  
Tai Boon Ong ◽  
Ong Chong Yong
Keyword(s):  
Precast Concrete ◽  
Crossing Over ◽  
Concrete Technology ◽  
Aesthetic Value ◽  
Arch Bridge ◽  
Arch Bridges ◽  
Frp Tube ◽  
The Aesthetic ◽  
Bridge System

Arch bridges which have existed since thousands years ago showed surprising durability. Due to the aesthetic value of arch bridges, it is widely used as crossing over valleys and rivers nowadays. Closed spandrel arch bridge is one type of arch bridges that has been developed using precast concrete technology since 1965. Currently, the available Precast Concrete Arch Bridge Systems are BEBO arch, Matiere arch, CON/SPAN arch, TechSpan arch, NUCON arch, Concrete-Filled FRP Tube arch, Flexi-Arch, Rivo CS-P Series arch and Pearl Chain arch. In this paper, development of the Precast Concrete Closed Spandrel Arch Bridge System is reviewed. The advantanges of precast closed spandrel arch bridge system will also be briefly presented. Comparisons in terms of arch sections, moulding, handling, transporting and installing among different Precast Concrete Closed Spandrel Arch Bridge Systems are also highlighted.

Study on Reliability Evaluation Method of Existing CFST Arch Bridge

2012 ◽  
Vol 226-228 ◽  
pp. 1679-1682
Author(s):  
Yi Song Zou ◽  
Hai Tao Hou ◽  
Wei Peng
Keyword(s):  
System Reliability ◽  
Reliability Index ◽  
Evaluation Method ◽  
Reliability Assessment ◽  
Steel Tube ◽  
Arch Bridge ◽  
Cfst Arch Bridge ◽  
Arch Bridges ◽  
Grading Standards ◽  
Bridge System

Based on reliability theory, the application calculation method of Concrete Filled Steel Tube (CFST) arch bridge system reliability index is studied. Select the most unfavorable load distribution in working condition of maximum moment and deflection at the mid-span, from the angle of strain energy, calculated the weights of CFST arch ribs component. On the basis of the grading standards of reliability assessment of the existing bridge components and the critical structures, CFST arch bridge system reliability assessment grading standards are constructed. CFST arch bridges reliability index are evaluated from two aspects (the arch ribs and segment) in this article. As the CFST arch bridge locates in the marine environment, corrosion environment is the serious level of C5-M, steel pipe corrosion is the major diseases of CFST, arch rib which on the corrosion conditions were assessed. The results show that the method can effectively assess the situation of CFST arch bridge.

Development and Standardisation of New Precast Concrete Open Spandrel Arch Bridge System

2014 ◽  
Vol 102 (31) ◽  
pp. 799-806 ◽  
Author(s):  
Geem Eng Tan ◽  
Tai Boon Ong ◽  
Chong Yong Ong ◽  
Kok Keong Choong
Keyword(s):  
Precast Concrete ◽  
Arch Bridge ◽  
Bridge System

Precast Concrete Closed Spandrel Arch Bridge System as Viable Alternative to Conventional Beam Bridge System

2015 ◽  
Vol 802 ◽  
pp. 261-266 ◽  
Author(s):  
Geem Eng Tan ◽  
Tai Boon Ong ◽  
Ong Chong Yong
Keyword(s):  
Precast Concrete ◽  
Viable Alternative ◽  
Bridge Construction ◽  
Arch Bridge ◽  
Viable Solution ◽  
Beam Bridge ◽  
Cost Factors ◽  
Bridge System ◽  
Construction System

A precast concrete closed spandrel arch bridge system developed for river crossing in Malaysia is presented. The 7.1m clear rise and 20.1m clear span overfilled arch bridge was proposed. Conventional beam bridge construction system has been ruled out due to the handling difficulty and cost factors. A structurally efficient precast arch section with corrugated shape was conceptualized, designed and developed. The economical viable solution adapted was a precast closed spandrel arch bridge system consisting of two connecting half-leaf panels with insitu crown beam. This system has been proven effective featuring simple precasting technique, handling process and practical jointing system at the crown. Comparisons between Precast closed spandrel arch bridge system and conventional beam bridge system is also highlighted.

Lighting of Engineering Structures and Industrial Facilities New Aspects of the Topic

2018 ◽  
pp. 29-36
Author(s):  
Nikolai I. Shepetkov ◽  
George N. Cherkasov ◽  
Vladimir A. Novikov
Keyword(s):  
Fundamental Problem ◽  
Lighting Design ◽  
Aesthetic Value ◽  
Engineering Structures ◽  
Industrial Facilities ◽  
Artificial Lighting ◽  
Industrial Structures ◽  
Design Solutions ◽  
Architectural Lighting ◽  
The Aesthetic

This paper considers the fundamental problem of artificial lighting in various types and scales of industrial facilities, focusing on exterior lighting design solutions. There is a lack of interest from investors, customers and society in high­quality lighting design for industrial facilities in Russia, which in many cities are very imaginative structures, practically unused in the evening. Architectural lighting of various types of installations is illustrated with photographs. The purpose of the article is to draw attention to the aesthetic value of industrial structures, provided not only by the architectural, but also by a welldesigned lighting solution.

What's the Message of Architecture?

2014 ◽  
pp. 126-136
Author(s):  
Аndrey G. Velikanov
Keyword(s):  
Separate Entity ◽  
Aesthetic Value ◽  
Current State ◽  
Entire Complex ◽  
History Of ◽  
The Aesthetic

Considers the aspects of architecture as a language able to express the current state and to prophetically indicate the upcoming changes. The aesthetic value of a construction cannot be perceived just as a separate entity, but it can be cognized in the context and not only a visual one, in space. It is necessary to see the entire complex of the accompanying phenomena, all the flow of the unfolding metaphors and values. In the model in view the figure of the author-creator must be reconsidered as no longer conforming to today's reality. The development of the Stalinist Empire style, as well as its transformations, is considered as one of the specific phenomena in the history of well-known constructions

Overfilled Precast Concrete Arch Bridge Structures

2000 ◽  
Vol 16 (20) ◽  
pp. 380-387 ◽  
Author(s):  
Joe BERNINI ◽  
Neal FITZSIMONS ◽  
Werner HEIERLI
Keyword(s):  
Precast Concrete ◽  
Arch Bridge ◽  
Bridge Structures

Semi Automatic T-Shirt Folding Machine Berbasis PID (Proportional Integral Derivative)

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Muhammad Apriliyanto ◽  
Miftachul Ulum ◽  
Koko Joni
Keyword(s):  
Ultrasonic Sensor ◽  
Proportional Integral Derivative ◽  
Servo Motor ◽  
Aesthetic Value ◽  
Proportional Integral ◽  
Door Opening ◽  
Dc Motors ◽  
The Aesthetic ◽  
The Right

<em>The process of folding clothes is one of the activities carried out in the laundry business or household. The activity is fairly easy but many people are still lazy to do it. As a result, clothes that have been washed will fall apart in certain rooms, thereby reducing the aesthetic value of a home. Semi Automatic T-Shirt Folding Machine is the right solution to make folding clothes easier and more time efficient. This tool is equipped with a servo motor that moves the folding board that has been designed in such a way that the user only needs to manghandle the shirt just once and simply push one button then the shirt will fold itself and will be neatly arranged through the clothes stacker board. The PID method is applied to DC motors that move under the clothes folder so that the buildup of clothes underneath will not be pressured upward when the clothes are piled up when they are folded. Ultrasonic sensor will measure the right height between the clothes with the door opening the stacking clothes with kp = 1, ki = 0.1, kd = 0.5 for thin clothes and kp = 5, ki = 1, kd = 2.5 for thick clothes so that the movement of the motor can adjust its speed . This tool can fold one shirt in 16.83 seconds 11 seconds faster than folding clothes manually</em>

STUDY OF DECORATIVE VARIETY IN GORONTALO KARAWO FABRIC IN AESTHETIC AND SYMBOLIC ELEMENTS

ARTic ◽  
2019 ◽  
Vol 3 ◽  
pp. 121-134
Author(s):  
Apsari Dj Hasan
Keyword(s):  
Manufacturing Process ◽  
The Philippines ◽  
Aesthetic Theory ◽  
Cultural Meanings ◽  
Aesthetic Value ◽  
Aesthetic Form ◽  
Decorative Motifs ◽  
Symbolic Meanings ◽  
The Aesthetic

This study aims to examine the decorative types of Gorontalo karawo fabrics in aesthetic and symbolic elements. Researchers want to know as made in the research design, aspects that are present in the decoration of fabrics in aesthetic and symbolic elements. This study uses a number of related theories to get results, and as a determinant, the authors use aesthetic theory, as well as historical approaches. With this theoretical basis, the author seeks to describe the aesthetic aspects and symbolic meanings that exist in Gorontalo karawo fabric. Through the data collection of the chosen motif and provide a classification of motives, the part is used as a reference for research material. The results showed that Gorontalo filigree had an aesthetic value consisting of unity formed from the overall decorative motifs displayed, complexity formed by complexity in the manufacturing process, and intensity of seriousness in the manufacturing process or the impression displayed on the filigree motif. The aesthetic form also reflects the diversity of meanings for communication, such as the symbol of a leader with his noble instincts, a symbol of cultural cooperation, which is worth maintaining, and ideas about nature conservation. This research proves that the decoration in Gorontalo filigree cloth (karawo) does not only act as a visual value, but also as a communication of cultural meanings and social status. Of all these distinctive motifs show a relationship between humans and humans and humans with nature. The influence of culture from the Philippines is also known to have a strong influence on the emergence of the Gorontalo filigree namely manila filigree.

Building Better Aesthetic Agents

2018 ◽  
Author(s):  
Dominic McIver Lopes
Keyword(s):  
Public Goods ◽  
Network Theory ◽  
Arts Education ◽  
Social Groups ◽  
Public Support ◽  
Communication Technologies ◽  
Social Structures ◽  
Aesthetic Value ◽  
The Aesthetic

A theory of aesthetic value should help us to make sense of how our aesthetic commitments matter to us as members of collectives. Aesthetic policies endogenous to aesthetic practices are directly justified by the network theory. The chapter looks at what aesthetic reasons we have to adopt exogenous aesthetic policies. Many argue that aesthetic practices deserve public support because aesthetic goods are public goods. A case is made for an aesthetic opportunity principle: larger social groups have reason to foster the aesthetic opportunities available to their members. The principle is applied to arts education and to communication technologies subserving aesthetic exchanges. The chapter ends with a discussion of how aesthetic opportunity interacts with—and can potentially counteract—oppressive social structures.

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