Two-Way Pre-Stressing Technology Applied to Large-Scale Aqueduct of Tanglai Channel through Beita Lake

2011 ◽  
Vol 243-249 ◽  
pp. 4511-4515
Author(s):  
Zhuo Li ◽  
Si Hong Liu ◽  
Xu Dong Yang ◽  
Shan Mai ◽  
You Ting Feng
Keyword(s):  
Large Scale ◽  
Design Code ◽  
Construction Period ◽  
Large Span ◽  
Construction Methods ◽  
Stress And Deformation ◽  
Complicated Conditions ◽  
Design And Construction

In view of particularity of the Tanglai channels aqueduct，which crosses Beita Lake, the conventional construction methods and technologies fail to work, so the new two-way pre-stressing technology is employed. After the sidewalls in large span structures of aqueduct were pre-fabricated and hoisted，the secondary floor was poured in design and construction plan. The results show that the comprehensive function of aqueduct is implemented in complicated conditions，such as short construction period，larger span of structures，navigation under aqueduct，pre-fabrication and hoisting of larger sidewalls. The stress and deformation of aqueduct meet the requirements of design code.

scholarly journals SUSPENSION LARGE SPAN ROOFS STRUCTURES IN RUSSIA

2021 ◽  
Vol 17 (2) ◽  
pp. 34-42
Author(s):  
Pavel Eremeev ◽  
Ivan Vedyakov ◽  
Andrey Zvezdov
Keyword(s):  
Thin Sheet ◽  
Social Consequences ◽  
Sports Facilities ◽  
Large Span ◽  
Advantages And Disadvantages ◽  
Construction Methods ◽  
Thin Sheet Metal ◽  
Bicycle Wheel ◽  
Suspended Roof ◽  
Design And Construction

Сonsidered are large-span structures with suspended roof structures with a span of up to 200 m, erected in Russia over the past 40 years. Among them, there are differen types of structures for covering sports facilities: cablestayed systems, structures of the "bicycle wheel" type, combined systems, thin-sheet metal hanging shells, etc. The main technical characteristics of structures, principles of operation of structures, their advantages and disadvantages are given. The development of technologies in recent decades has determined the emergence of new forms, materials, design and construction methods. Unique large-span structures have an increased level of responsibility; their collapse can lead to severe economic and social consequences. In this regard, it is relevant to analyze the experience in the design and construction of large-span suspended structures.

Design and Construction of High-Formwork and Large Span Formwork Supports System

2012 ◽  
Vol 461 ◽  
pp. 589-592
Author(s):  
Da Hua Li ◽  
An Hui Wang ◽  
Yan Mei Chen
Keyword(s):  
Bearing Capacity ◽  
High Modulus ◽  
Construction Quality ◽  
Construction Period ◽  
Supporting System ◽  
Large Span ◽  
Long Span ◽  
Design Requirements ◽  
Template Design ◽  
Design And Construction

Taking Hefei Grand Theatre as an example, this paper discussed the relevant issues in big supporting system for template design and construction. It analyzed bearing capacity checking and the force checking of the main bar. It elaborated the main points in construction of template supporting system. Practice has proved that the design of high-modulus. Long-span template supporting system for the project is feasible. The implementation of the program not only reached the design requirements, but also ensured the construction quality, safety and construction period.

Mechanics Research on Rock Stress and Deformation of Lancang River Canyon's Large - Scale Dumping Deformation

2013 ◽  
Vol 353-356 ◽  
pp. 318-323
Author(s):  
Song Ye ◽  
Yu Sheng Li ◽  
Qian Guo
Keyword(s):  
Large Scale ◽  
Geological Structure ◽  
Deformation Characteristics ◽  
Deep Part ◽  
Trailing Edge ◽  
Geological Surveys ◽  
Depth Analysis ◽  
Numerical Simulation Methods ◽  
Complex Geological Structure ◽  
Stress And Deformation

This article is based on geological surveys combined with finite element and discrete element numerical simulation methods. In-depth analysis of the complex geological structure, deformation characteristics and stress - deformation problems of dumping rock, we clarify different deformation characteristics of deformable landslide inside, at the bottom and the deep part of trailing edge, and demonstrate the deformation will gradually shift from dumping to shear slip. Potential deformation failure mode will be dumped into the whole sliding - tension, which is controlled by the bottom broken belt, and potential deformation is mainly subject to the bottom fault F207-3 of deformed rock and the dumping broken belt at the deep part of trailing edge.

Comparison of Strip Yield and Net Section Plasticity Models for a Bar in Bending With a Single Edge Crack

2017 ◽  
Author(s):  
Wolf Reinhardt ◽  
Don Metzger
Keyword(s):  
Edge Crack ◽  
Large Scale ◽  
Stress Singularity ◽  
Crack Tip ◽  
Small Scale ◽  
Single Edge ◽  
Yield Model ◽  
Strip Yield Model ◽  
Crack Tip Plasticity ◽  
Stress And Deformation

The strip yield model is widely used to describe crack tip plasticity in front of a crack. In the strip yield model the stress in the plastic zone is considered as known, and stress and deformation fields can be obtained from elastic solutions using the condition that the crack tip stress singularity vanishes. The strip yield model is generally regarded to be valid to describe small scale plasticity at a crack tip. The present paper examines the behavior of the strip yield model at the transition to large-scale plasticity and its relationship to net section plasticity descriptions. A bar in bending with a single edge crack is used as an illustrative example to derive solutions and compare with one-sided and two-sided plasticity solutions.

New Zealand Research Applications of, and Developments in, Low Damage Technology for Steel Structures

2018 ◽  
Vol 763 ◽  
pp. 3-10 ◽  
Author(s):  
Gregory A. MacRae ◽  
George Charles Clifton ◽  
Michel Bruneau
Keyword(s):  
New Zealand ◽  
Large Scale ◽  
Base Isolation ◽  
Steel Structures ◽  
Small Towns ◽  
Steel Buildings ◽  
Construction Methods ◽  
Steel Framing ◽  
Friction Pendulum ◽  
Building Demolition

Over the past few years, the South Island of New Zealand has been subject to significant sequences of earthquake shaking. In particular, 2010-2011 events affected the city of Christchurch resulting in large scale demolition of buildings. Also, the recent and continuing 11/2016 events caused severe damage in the countryside, in small towns, and moderate damage further afield. This paper describes “low damage construction” methods being used in NZ, and especially in the Christchurch rebuild, to limit the possibility of building demolition in future large seismic events. The buildings used in the Christchurch rebuild are generally supported by structural steel framing. These steel buildings include BRB systems, EBF systems with replaceable active links, rocking systems, base isolation using friction pendulum systems and/or lead-rubber dissipaters, RBS beams, lead extrusion dissipaters, yielding flexural dissipaters, and friction connections. Concerns about a number of currently used systems are discussed.

Roadway Deck of a Marine Terminal Facility in Egypt

2019 ◽  
Author(s):  
José J. Oliveira Pedro ◽  
José Dâmaso ◽  
Loïc Van Durmen ◽  
Hubert Vander Meulen
Keyword(s):  
Red Sea ◽  
Fast Track ◽  
Offshore Structure ◽  
Construction Planning ◽  
Main Design ◽  
Simply Supported ◽  
Construction Methods ◽  
Design And Construction

<p>This paper presents the Ain Sukhna Product Hub, a marine terminal facility recently finished in the Red Sea, Egypt, including the design and construction of a 3 km long offshore roadway. Formed by 83 simply supported spans, the roadway structures are elements that can greatly impact on the construction planning. An overview of the fast track nature of design, procurement and construction of this significant offshore structure are presented, describing the main design works and construction methods and highlighting the importance of the coordination with construction team and reality of the specific conditions in the project’s country.</p>

Optimization Research of Construction Methods and Parameters of Large-span City Coastal Tunnel in Horizontal Layered Rockmass

2019 ◽  
Vol 94 (sp1) ◽  
pp. 232
Author(s):  
Fujin Hou ◽  
Xianmin Han ◽  
Shucai Li ◽  
Wenjiang Li
Keyword(s):  
Large Span ◽  
Construction Methods

Mongolia Residential Architectural Features and Construction of Eco-Tourism Development

2011 ◽  
Vol 396-398 ◽  
pp. 166-170
Author(s):  
Xing Ran Mao ◽  
Rui Bo Hu ◽  
Lun Li
Keyword(s):  
Scale Development ◽  
Large Scale ◽  
Material Selection ◽  
Residential Buildings ◽  
Tourism Development ◽  
Construction Methods ◽  
Architectural Features ◽  
Geographical Environment ◽  
Good Material ◽  
Type Construction

Today, The rising of the national large-scale development and construction in eco-tourism area are under the guidance of different ideas. Mongolia is located in a very special geographical environment, so the application of a totally new design concept, using the concept of history and green as specific guidance, will release the endless fascination of its unique prairie landscape, in addition, the history and culture in a class by itself, and the pervasive folkways, pollution-free grassland and residential buildings, the yurts which seem like a patchwork will show the beautiful scenery for tourists. This article combined with natural, historical and cultural of yurts ,expatiated on the origin, type, construction methods, material selection, decoration and other features of yurts of, o that we got constructive comments for development: promotion of history and culture, exert the advantages of unique regional and good material.

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