Exploration on the Underpinning Technology of One Masonry Structure

2011 ◽  
Vol 243-249 ◽  
pp. 5552-5556
Author(s):  
Heng Lin Lv ◽  
Chun Hua Xu ◽  
Shu Chun Zhou ◽  
Yue Xing Zhu ◽  
Shi Jie Ding
Keyword(s):  
Masonry Structure ◽  
Construction Process ◽  
Strengthening Method

Because of the change of using function of one masonry structure, its longitudinal walls need to be underpinned. The related members also need to be reinforced. This paper has a discussion on the thought of underpinning part, strengthening method and key construction process. They main involve the reinforcement of foundation, the transformation from non-bearing members to bearing members of ring beams and constructional columns. It also involves the construction points for attention during underpinning process. At last, the main points that shuold be paid attention to in strengthening deign and underpinning construction are concluded.

Load testing and health monitoring of monolithic bridges with innovative reinforcement

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kexin Zhang ◽  
Tianyu Qi ◽  
Dachao Li ◽  
Xingwei Xue ◽  
Zhimin Zhu
Keyword(s):  
Health Monitoring ◽  
Construction Process ◽  
Content Type ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Steel Strand ◽  
Before And After ◽  
Load Tests ◽  
Rigid Frame Bridge ◽  
Strengthening Method

PurposeThe paper aims to investigate effectiveness of the strengthening method, the construction process monitoring, fielding-load tests before and after strengthening, and health monitoring after reinforcement were carried out. The results of concrete strain and deflection show that the flexural strength and stiffness of the strengthened beam are improved.Design/methodology/approachThis paper describes prestressed steel strand as a way to strengthen a 25-year-old continuous rigid frame bridge. High strength, low relaxation steel strand with high tensile strain and good corrosion resistance were used in this reinforcement. The construction process for strengthening with prestressed steel strand and steel plate was described. Ultimate bearing capacity of the bridge after strengthening was discussed based on finite element model.FindingsThe cumulative upward deflection of the second span the third span was 39.7 mm, which is basically consistent with the theoretical value, and the measured value is smaller than the theoretical value. The deflection value of the second span during data acquisition was −20 mm–10 mm, which does not exceed the maximum deflection value of live load, and the deflection of the bridge is in a safe state during normal use. Thus, this strengthened way with prestressed steel wire rope is feasible and effective.Originality/valueThis paper describes prestressed steel strand as a way to strengthen a 25-year-old continuous rigid frame bridge. To investigate effectiveness of the strengthening method, the construction process monitoring, fielding-load tests before and after strengthening and health monitoring after reinforcement were carried out.

HPFL Strip Strengthening Method for Masonry Structure

2011 ◽  
Vol 374-377 ◽  
pp. 2593-2598
Author(s):  
Shou Ping Shang ◽  
Rong Shen
Keyword(s):  
Energy Dissipation ◽  
High Reliability ◽  
Low Cost ◽  
Masonry Structure ◽  
Masonry Structures ◽  
Simple Construction ◽  
Specific Design ◽  
Engineering Structures ◽  
The Real ◽  
Strengthening Method

Due to the various advantages, e.g. low cost, simple construction and high reliability, the HPFL strip reinforcement technique has been widely used in the field of civil engineering. A survey of related literatures on the research and application of the HPFL strip reinforcement technique for Masonry structures were shown in this paper. The HPFL strip reinforcement technique can significantly improve the properties of the wall, e.g. the aseismatic capacity, shear resistant strength, ductility, energy dissipation. Moreover, based on the real engineering structures, the specific design and construction method were presented in this paper.

Development of Masonry Components Protected against Moisture

2013 ◽  
Vol 860-863 ◽  
pp. 1248-1251
Author(s):  
Martin Sedlmajer ◽  
Jiri Zach ◽  
Jitka Peterková
Keyword(s):  
Surface Treatment ◽  
Potential Application ◽  
Masonry Structure ◽  
Masonry Structures ◽  
Building Structure ◽  
Construction Process ◽  
Potential Reduction ◽  
Negative Effect ◽  
Effect Of Moisture ◽  
Collective Influence

During construction process and life, a number of negative influences can have effect on masonry structures; moisture, which is undesirable in the masonry, can be one of such influences. The lower area of the masonry (plinth walling) is strained the most by the moisture. The paper deals with potential reduction of the effect of moisture in places, where the masonry structure is founded, through hydrophobization of walling units. Such solution of the issue of protection of the building structure against the influence of humidity should not have negative effect on the resulting masonry parameters, particularly not on the potential application of surface treatment materials. The collective influence of the surface treatment materials, consisting usually of plaster, and the actual masonry should be ensured.

Development and Application of Quality Control System for Highway Subgrade Construction

2019 ◽  
Vol 2 (5) ◽  
Author(s):  
Tong Wang
Keyword(s):  
Quality Control ◽  
Real Time ◽  
Detection Method ◽  
System Development ◽  
Effective Control ◽  
Construction Process ◽  
Development Mode ◽  
The Road ◽  
Whole Process

The compaction quality of the subgrade is directly related to the service life of the road. Effective control of the subgrade construction process is the key to ensuring the compaction quality of the subgrade. Therefore, real-time, comprehensive, rapid and accurate prediction of construction compaction quality through informatization detection method is an important guarantee for speeding up construction progress and ensuring subgrade compaction quality. Based on the function of the system, this paper puts forward the principle of system development and the development mode used in system development, and displays the development system in real-time to achieve the whole process control of subgrade construction quality.

Formation Of An Estimate For A State Contract With A Firm Price In The Construction Sector

2020 ◽  
pp. 47-57
Keyword(s):  
Construction Projects ◽  
Cost Of Capital ◽  
Federal Budget ◽  
The State ◽  
Structural Elements ◽  
Construction Sector ◽  
Construction Process ◽  
Practical Application ◽  
Stage Of Development ◽  
Capital Construction

The issues of determining the estimated cost of capital construction projects with the involvement of Federal budget funds at the stage of development of project documentation, during verification of the accuracy of determining the estimated cost and the initial (maximum) contract price are considered. On the basis of the assessment of amendments to urban planning legislation for the purpose of implementing a state contract by the contractor ( based on the results of competitive procedures or without competitive procedures by decision of state authorities), the procedure for forming the estimate as part of a state (municipal) contract, the price of which is firm, is presented. For the purpose of mutual settlements between the customer and the contractor for the work performed, the formation of primary accounting documentation, as well as for checking the work performed by regulatory authorities, an example of drawing up an estimate of the state (municipal) contract on the basis of grouping costs according to structural elements and complexes of work is given. The result of the research conducted was the development of regulations and the formation of criteria for their practical application by state bodies, institutions, organizations and other participants in the investment-construction process, as well as recipients of budget funds, who perform the functions of the state (municipal) customer, developer and technical customer.

IMAJINASI KE IMAJINASI VISUAL FOTOGRAFI

2017 ◽  
Vol 12 (2) ◽  
pp. 91
Author(s):  
Edial Rusli
Keyword(s):  
Creative Process ◽  
Single Unit ◽  
Digital Images ◽  
Visual Image ◽  
Construction Process ◽  
Multiple Images ◽  
Artistic Process ◽  
Visual Imagination ◽  
Human Thought ◽  
The Media

AbstrakImaji visual fotografi merupakan media rekam visual yang objektif dan representatifkebenarannya dalam merekam suatu realitas. Revolusi teknologi menyebabkan perubahandari teknologi fotografi analog sebagai salah satu media yang menyatakan kebenaran ataubukti dan sebagai media yang representatif kebenarannya ke teknologi digital yang dapatmemungkinkan untuk merekayasa gambar digital melalui perangkat lunak. Teknologi digitaltelah menjadikan kebenaran dalam sebuah foto tidak lagi absolut. Akhirnya fotografi sebagaialat perekam imaji yang representatif kebenarannya semakin diragukan. Karena semakin sulituntuk membedakan foto asli atau palsu, bahkan sebuah foto asli bisa saja dikatakan sebagaihasil manipulasi. Penciptaan imajinasi visual fotografi ini dihasilkan dari suatu olah daya pikirmanusia. Dalam proses tersebut dibutuhkan suatu kreativitas dari penggabungan imaji-imajisebelumnya atau sekarang ini untuk diimajinasikan. Pemaknaan akan bergeser dari imaji visualfotografi menjadi imaji visual fotografi yang baru. Proses artistik imajinasi visual ini diciptakandengan didasarkan pada artistik yang berdasarkan imajinasi, artistik berdasarkan imajinasi danartistik didasarkan pada kombinasi antara kenyataan dan imajinasi. Penciptaan Imajinasi visualfotografi merupakan daya untuk mengonstruksi ataau menggabungkan kembali dari berbagaiimaji-imaji atau foto- secara imajinatif dan kreatif dengan persepsi yang menyertainya untukmenjadi imaji baru yang utuh, logis, dan mungkin terjadi dengan menggunakan teknik danefek fotografi. Proses mengonstruksi membutuhkan suatu kemampuan berimajinasi untukmenggabungkan dan menyatukannya untuk menjadi satu kesatuan (unity) yang utuh dalam satupermukaan gambar/imaji secara ekspresif dan imajinatif melalui proses estetis yang kreatifberdasarkan ciri personal penciptanya. Dengan demikian, hasil dari proses konstruksi tersebutsudah tidak tampak lagi imaji sebelumnya dan pemaknaannya sudah bergeser menjadi karyaimaji dengan pemaknaan baru.AbstractImage to Photography Visual Imagination. Visual image of photography is a visual recordingmedia which is objective and representative in revealing the truth when recording a reality. Thetechnology revolution led to the change in photography, from analog photographic technologyas one of the media for promoting truth or evidence and as media representing truth to thedigital technology which allow people to manipulate digital images through software. Digitaltechnology has made the truth in a photograph is no longer absolute. In the end, photographyas an images recording tool representing truth is doubted. It is getting harder and moredifficult to distinguish the original or fake photo, even an original photo can be said as aresult of manipulation.The creation of visual imagination photography is produced by thepower of human thought. The process requires a creativity of merging the previous or recentimages to imagine. The meanings will be shifted from visual image photography into a newvisual image photography. Visual imagination of the artistic process is created on the basisof artistic imagination, artistic imagination and artistic are based on a combination of realityand imagination.The creation of visual photography imagination is a power to construct orrecombine from multiple images or pictures imaginatively and creatively with the perceptionto be a whole new image, logical, and may occur with the use of techniques and photographiceffects. The process of constructing requires an ability of imagining to combine and unitethem into a single unit as a unity which is intact on s single surface of the picture/image,expressively and imaginatively through an aesthetic creative process based on the personalcharacteristics of the creator. By doing so, the construction process will no longer visible onthe former image and the meaning will shift into an image with a new meaning.

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