China Road and Bridge Corporation

Beijing, China

China Road and Bridge Corporation

Beijing, China

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Li R.,Dalian University of Technology | Tian B.,China Road and Bridge Corporation | Zhong Y.,Dalian University of Technology
Meccanica | Year: 2013

This paper presents the analytical solutions for the bending of orthotropic rectangular thin plates by the double finite integral transform, which, as an effective tool in solving plate problems, should have received attention. As a representative and difficult problem in the theory of plates, free plates' bending is successfully solved to demonstrate the accuracy of the method by comparing the present analytical solutions with those from the literature as well as those by the finite element method. With the proper integral transform kernels, the proposed solution procedure is applicable to the bending of orthotropic rectangular plates with all combinations of simply supported, clamped and free boundary conditions, which serves as an elegant approach to analytical solutions of plate bending problems. © 2013 Springer Science+Business Media Dordrecht.


Chen K.,China Road and Bridge Corporation
Applied Mechanics and Materials | Year: 2013

There is the soft soil distribution mostly in the regions along the river or the sea in our country, so the soft foundation treatment shold be well done in building highways. With respect to the soft foundation treatment methods, the scholars, engineers and technicians home and abroad have put forward a dozen or more methods, such as replacement method, reinforcement method, top pressing method, sandstone pile method and deep mixing method etc. This article discusses the reinforcement mechanism, construction technology and some proceedings requiring attention in the construction and detection of the cement agitation pile. © (2013) Trans Tech Publications, Switzerland.


Cao L.,China Road and Bridge corporation
Applied Mechanics and Materials | Year: 2013

AH-130 base asphalt graded according to the upper limit of AC-16 close gradation is selected in this paper to identify the impact of asphalt mortar of different filler-bitumen ratios on asphalt mixture's road performance through small beam bending test at low temperature. And then bending failure energy, in substitute of bending strength, bending strain, is used to evaluate the anti-cracking performance of asphalt mixture at low temperature. © (2013) Trans Tech Publications, Switzerland.


Zhang P.,Zhengzhou University | Wei X.,China Road and Bridge Corporation
Advanced Materials Research | Year: 2011

The aim of this study was to study the effect of curing period and cement content of the specimen on flexural strength and flexural modulus of elasticity of cement stabilized aggregate. Four specimen curing periods (7 d, 14 d, 28 d and 60 d) and four different cement contents (4%, 5%, 6% and 7%) were used. The results indicate that the flexural strength and flexural modulus of elasticity of cement stabilized aggregate are increasing with the increase of specimen curing period. Besides, with the increase of cement content, there is a tendency to increase both in the flexural strength and flexural modulus of elasticity of cement stabilized aggregate. The actual cement content should be chosen according to the actual condition of the project. © (2011) Trans Tech Publications.


Chen K.,CHINA ROAD AND BRIDGE CORPORATION
Applied Mechanics and Materials | Year: 2013

With the fast development of economy, science and technology, concrete has been widely used in bridge construction. But the problem of concrete bridge structure crack is still an important issue in bridge construction in China. How to combine the bridge foundation theory with the practice of construction to solve the problem of concrete bridge structure crack is the key to guarantee the quality of bridge construction. This paper focuses on the cause analysis of concrete bridge structure cracks and the treatment countermeasures are put forward. © (2013) Trans Tech Publications, Switzerland.


Wang F.,China Road and Bridge Corporation | Li S.,China Road and Bridge Corporation
Applied Mechanics and Materials | Year: 2012

A designed experimental study has been conducted to investigate the effect of silica fume on workability and water impermeability of concrete, a large number of experiments have been carried out in this study. The results indicate that the addition of silica fume has adverse effect on the workability of concrete composite. The slump and flowability of the concretes containing silica fume is less than that of the concrete without silica fume, and a considerable decrease for the slump and flow of the concrete was observed by increasing the dosage of silica fume. Besides, the addition of silica fume can improve the water impermeability of the concrete composite evidently, and the water impermeability is becoming better and better as the silica fume content is increasing gradually. © (2012) Trans Tech Publications, Switzerland.


Li R.,Dalian University of Technology | Zhong Y.,Dalian University of Technology | Tian B.,China Road and Bridge Corporation
Mechanics Research Communications | Year: 2011

A novel superposition method based on the symplectic geometry approach is presented for exact bending analysis of rectangular cantilever thin plates. The basic equations for rectangular thin plate are first transferred into Hamilton canonical equations. By the symplectic geometry method, the analytic solutions to some problems for plates with slidingly supported edges are derived. Then the exact bending solutions of rectangular cantilever thin plates are obtained using the method of superposition. The symplectic superposition method developed in this paper is completely rational compared with the conventional analytical ones because the predetermination of deflection functions, which is indispensable in existing methods, is dispelled. © 2011 Elsevier Ltd. All rights reserved.


NAIROBI, Kenya, 11 novembre 2016 /PRNewswire/ -- Le SANY Heavy Industry Co (KENYA) LTD (SANY) a obtenu le prix « Excellent After-Sales Service Supplier Award » 2016 pour sa participation au projet Mombasa-Nairobi. La ligne de chemins de fer de 480 kilomètres qui relie Mombasa à Nairobi est le plus grand projet d'infrastructure au Kenya depuis qu'il a obtenu son indépendance en 1963. On estime qu'il coûtera 3,8 milliards de dollars et qu'il pourrait permettra une augmentation de 1,5 % du PIB du pays. Ce prix annuel, décerné par l'attributaire du projet, China Road and Bridge Corporation, récompense le prestataire de services qui a apporté une contribution majeure au projet Mombasa-Nairobi. Sur une douzaine d'entreprises, SANY a obtenu le prix en arrivant en première place avec le score de 97,45. SANY a fourni au total 120 machines de construction pour ce projet, y compris des pompes à béton, des grues sur chenilles, des chariots-grues, des excavateurs et des rouleaux compresseurs, dont la valeur est estimée à plus de 15 millions de dollars. SANY a dépêché sur place son équipe d'ingénieurs de service afin de fournir un appui en permanence, d'effectuer l'inspection périodique des machines et de proposer des solutions techniques optimales afin de s'assurer que les machines fonctionnent parfaitement, et de respecter ainsi les délais du projet. Trois entrepôts pour les accessoires ont été fabriqués pour appuyer la chaîne logistique. « Ce qui nous importe le plus, c'est la satisfaction de nos clients », explique le directeur de service SANY au Kenya. Guidée par sa stratégie de service « fondée sur la technologie, l'inspection, la formation et la communication », les ingénieurs de service SANY ont pu renforcer en permanence leurs compétences afin de remédier aux difficultés rencontrées par les clients. La construction de la voie ferrée n'a pas été sans encombre, car les équipes de construction ont dû faire face à des conditions géologiques difficiles, notamment de la roche extrêmement dure. « Ce prix ne traduit pas seulement la confiance manifestée pour le service après-vente de SANY : c'est également pour nous un grand encouragement. SANY fera de son mieux pour s'assurer que le projet aboutisse », explique Li Lei, directeur général de SANY pour l'Afrique du Nord. Au terme de sa construction, cette voie ferrée reliera la capitale kenyane Nairobi à Mombasa, le plus grand port d'Afrique de l'Est, réduisant le temps de parcours à près de 4 heures. SANY Group (SANY), qui a son siège en Chine, est un des premiers constructeurs mondiaux d'engins mécaniques avec des usines aux Etats-Unis, en Allemagne, au Brésil et en Inde, et des opérations dans plus de 100 pays régions à travers le monde. La société a été saluée comme l'une des plus innovantes et performantes au monde, et ses engins à béton sont classés au premier rang mondial. Pour de plus amples informations, rendez-vous sur www.sanyglobal.com, ou suivez SANY Group sur Facebook et YouTube.


NAIROBI, Kenya, Nov 11, 2016 /PRNewswire/ -- The SANY Heavy Industry Co (KENYA) LTD (SANY) has been recognized with the 2016 Excellent After-Sales Service Supplier Award for its contribution to the Mombasa-Nairobi project. The 480-kilometer Mombasa-Nairobi Railway is Kenya's largest infrastructure project since its independence in 1963. It will cost an estimated US$3.8 billion and potentially increase the country's GDP by 1.5%. The annual award, given by the project contractor, China Road and Bridge Corporation, honors the service provider who renders outstanding contributions to the Mombasa-Nairobi project. Among a dozen companies, SANY won the recognition by ranking first with the score of 97.45. SANY has supplied a total of 120 units of construction machines in this project, including concrete pumping equipment, crawler cranes, truck cranes, excavators, and road rollers, valued over US$15 million. SANY sent its service engineers team on-site to provide around-the-clock support, as well as carry out periodic inspections of machines and render optimal technical solutions to ensure that machines were in full flow operation, keeping the project timelines on track. Three warehouses for accessories were established to support the supply chain. "What we are concerned about most is our customers' satisfaction," SANY's service manager in Kenya stressed. Guided by the service strategy of "technology, inspection, training and communication", SANY service engineers have been continuously improving their service skills to sort out customers' difficulties. The construction of the railway has not been without its challenges, as construction teams were confronted with tough geological conditions involving extremely hard rock. "The award not only represents confidence in SANY's after-sales service, but also gives us great encouragement. SANY will try its best to ensure that the project is successfully completed," Li Lei, General Manager of SANY North Africa business unit said. After its completion, the railway will connect Kenya's capital Nairobi to Mombasa, the largest port in East Africa, shortening the journey to almost 4 hours. SANY Group (SANY), headquarterd in China, is a world-leading heavy machinery manufacturer with plants in the US, Germany, Brazil and India, and business covering over 100 countries and regions worldwide. The company has been recognized as one of the most innovative and successful companies in the world, and its concrete machinery is ranked No. 1 globally. For more information, please visit: www.sanyglobal.com, or follow SANY Group on Facebook and YouTube. To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/sany-awarded-with-excellent-after-sales-service-supplier-in-kenyas-largest-railway-project-300361354.html


News Article | November 11, 2016
Site: www.prnewswire.co.uk

NAIROBI, Kenya, Nov. 11, 2016 /PRNewswire/ -- The SANY Heavy Industry Co (KENYA) LTD (SANY) has been recognized with the 2016 Excellent After-Sales Service Supplier Award for its contribution to the Mombasa-Nairobi project. The 480-kilometer Mombasa-Nairobi Railway is Kenya's largest infrastructure project since its independence in 1963. It will cost an estimated US$3.8 billion and potentially increase the country's GDP by 1.5%. The annual award, given by the project contractor, China Road and Bridge Corporation, honors the service provider who renders outstanding contributions to the Mombasa-Nairobi project. Among a dozen companies, SANY won the recognition by ranking first with the score of 97.45. SANY has supplied a total of 120 units of construction machines in this project, including concrete pumping equipment, crawler cranes, truck cranes, excavators, and road rollers, valued over US$15 million. SANY sent its service engineers team on-site to provide around-the-clock support, as well as carry out periodic inspections of machines and render optimal technical solutions to ensure that machines were in full flow operation, keeping the project timelines on track. Three warehouses for accessories were established to support the supply chain. "What we are concerned about most is our customers' satisfaction," SANY's service manager in Kenya stressed. Guided by the service strategy of "technology, inspection, training and communication", SANY service engineers have been continuously improving their service skills to sort out customers' difficulties. The construction of the railway has not been without its challenges, as construction teams were confronted with tough geological conditions involving extremely hard rock. "The award not only represents confidence in SANY's after-sales service, but also gives us great encouragement. SANY will try its best to ensure that the project is successfully completed," Li Lei, General Manager of SANY North Africa business unit said. After its completion, the railway will connect Kenya's capital Nairobi to Mombasa, the largest port in East Africa, shortening the journey to almost 4 hours. SANY Group (SANY), headquarterd in China, is a world-leading heavy machinery manufacturer with plants in the US, Germany, Brazil and India, and business covering over 100 countries and regions worldwide. The company has been recognized as one of the most innovative and successful companies in the world, and its concrete machinery is ranked No. 1 globally. For more information, please visit: www.sanyglobal.com, or follow SANY Group on Facebook and YouTube.

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