scholarly journals Application of Laminated Plate Construction Technology in Prefabricated Building Structure

CONVERTER ◽  
2021 ◽  
pp. 30-36
Author(s):  
Li Jianghua, Weng Mei

With the development of China's construction field, prefabricated building structure has gradually become a very common building structure in the current construction engineering by virtue of its many advantages in the actual construction field. Combined with the engineering practice, this paper summarizes the hoisting technology of precast composite slab and precast staircase in prefabricated building structure. This paper focuses on the optimization design of laminated plate support under the conditions of wood formwork and aluminum formwork system and the key and difficult points in the construction process, and puts forward a set of practical and feasible construction methods for prefabricated components. This paper focuses on the analysis of the design concept, materials, structural form, manufacturing technology, hoisting and installation, and construction technology of M-type light steel concrete composite slab. This paper discusses and summarizes the advantages and disadvantages of M-type light steel reinforced concrete composite slab at present, and analyzes its development and application prospects. At the same time, in order to determine the reasonable type of laminated plate, the material budget analysis of assembled laminated plates with different structural forms is carried out. The conclusions are as follows: PK prestressed concrete composite slab has great advantages in the whole material budget cost, which is suitable for all kinds of span buildings. One way steel truss slab and YH prestressed concrete composite slab are suitable for small span buildings.

2014 ◽  
Vol 711 ◽  
pp. 426-429
Author(s):  
Xiao Dong Ma

In thermal power engineering construction, the main building is a great project, in which the construction time, key engineering technology is difficult. It is also a wide range, strong professional structure of the system, it is closely related to the development of construction technology, the need to gradually improve building materials production level and engineering practice. Main factory building structure system to achieve light weight, high strength, reliable technology, economy applicable, expanding for dry operation, should be combined closely with plant production process, good solution can be achieved. Therefore, choose the main factory building structure, give full play to the bearing capacity of each structure, improve the level of main factory building design, construction technology ,to accelerate the progress of main building structure system plays an important role.


2014 ◽  
Vol 501-504 ◽  
pp. 2195-2198
Author(s):  
Guo Hui Jin ◽  
Xiao Dan Niu ◽  
Xiao Li Wang

On account of unbonded prestressed concrete construction technology is a high demand specialized, strict operation, high technical content job [, so the construction quality control study of unbonded prestressed concrete play a vital role to the quality of the structure construction, impact the quality of the whole project. In view of this, this paper analysis and inductive the main point of it from three stages: before, under and after the construction, expect to play a role of reference and guidance to the engineering practice.


2014 ◽  
Vol 496-500 ◽  
pp. 2387-2389
Author(s):  
Ping Pang

The article introduced the advantages and disadvantages of unbonded prestressed concrete. In project application, its property under load and the design method and durability precautions.


ACTA IMEKO ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 167
Author(s):  
Tomáš Klier ◽  
Tomáš Mícka ◽  
Michal Polák ◽  
Milan Hedbávný

<p class="Abstract">A requirement of axial force determination in important structural elements of a building or engineering structure during its construction or operational state is very frequent in technical practice. In civil engineering practice, five experimental techniques are usually used for evaluation of axial tensile forces in these elements. Each of them has its advantages and disadvantages. One of these methods is the magnetoelastic method, that can be used, for example, on engineering structures for experimental determination of the axial forces in prestressed structural elements made of ferromagnetic materials, e.g., prestressed bars, wires and strands. The article presents general principles of the magnetoelastic method, the magnetoelastic sensor layout and actual information and knowledge about practical application of the new approach based on the magnetoelastic principle on prestressed concrete structures. Subsequently, recent results of the experimental verification and the in-situ application of the method are described in the text. The described experimental approach is usable not only for newly built structures but in particular for existing ones. Furthermore, this approach is the only one effectively usable experimental method for determination of the prestressed force on existing prestressed concrete structures in many cases in the technical practice.</p>


2014 ◽  
Vol 509 ◽  
pp. 92-95 ◽  
Author(s):  
Yan Wei ◽  
Dong Feng Wang ◽  
Ji Ying Liu ◽  
Cheng Long Yu ◽  
Tao Cheng ◽  
...  

Describes the historical background of modular construction technology, focusing on the development of power from a modular, development history, comparative advantages and disadvantages of other aspects of the study was to investigate, and thus the modularization of the prospect.


2017 ◽  
Vol 39 (4) ◽  
pp. 45-57 ◽  
Author(s):  
Zbigniew Muszyński ◽  
Jarosław Rybak

Abstract In many cases of monitoring or load testing of hydrotechnical structures, the measurement results obtained from dial gauges may be affected by random or systematic errors resulting from the instability of the reference beam. For example, the measurement of wall displacement or pile settlement may be increased (or decreased) by displacements of the reference beam due to ground movement. The application of surveying methods such as high-precision levelling, motorized tacheometry or even terrestrial laser scanning makes it possible to provide an independent reference measurement free from systematic errors. It is very important in the case of walls and piles embedded in the rivers, where the construction of reference structure is even more difficult than usually. Construction of an independent reference system is also complicated when horizontal testing of sheet piles or diaphragm walls are considered. In this case, any underestimation of the horizontal displacement of an anchored or strutted construction leads to an understated value of the strut’s load. These measurements are even more important during modernization works and repairs of the hydrotechnical structures. The purpose of this paper is to discuss the possibilities of using modern measurement methods for monitoring of horizontal displacements of an excavation wall. The methods under scrutiny (motorized tacheometry and terrestrial laser scanning) have been compared to classical techniques and described in the context of their practical use on the example hydrotechnical structure. This structure was a temporary cofferdam made from sheet pile wall. The research continuously conducted at Wroclaw University of Science and Technology made it possible to collect and summarize measurement results and practical experience. This paper identifies advantages and disadvantages of both analysed methods and presents a comparison of obtained measurement results of horizontal displacements. In conclusion, some recommendations have been formulated, which are relevant from the point of view of engineering practice.


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