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Abstract:China's public and railroad bridges on the 60s began to use rubber bearings, in 1966 in Zhaoqing, Guangdong Province, a highway bridge, the first use of plate rubber bearings. Subsequently in 1969 in Anhui Guzhen a 12m prestressed concrete bridge also used plate rubber bearing, in 1976 in Tangshan near the Luanhe Highway Bridge and the Hongshui River Railway Cable-stayed Bridge on the use of pot rubber bearings, since 1991 in Shanghai Nanpu Bridge began to use spherical bearings. Ministry of Railway Research Institute of Railway Construction since the 1970s, the plate rubber bearing, basin type rubber bearing and spherical bearing and other bridge bearings to carry out systematic research, design and promote the application of work!

Abstract:This paper describes the research of 2000MPa grade steel strand anchorage, analysis, test situation, main performance communication preliminary engineering use. Through finite element analysis, strain testing and other methods to analyze the stress state of the anchorage components, through a large number of tests on the anchorage continuously improved; the use of new heat treatment process to improve the performance of the anchorage. The developed anchorage can reliably anchor strands of 2000MPa grade and below, and has high fatigue resistance (fatigue test stress amplitude up to 120MPa), and at the same time, compared with the existing general anchorage, the structure is more compact and lightweight.

Abstract:This article mainly introduces the main performance and characteristics of the new ultra-high pressure oil pump ZB618 type electric oil pump.

Abstract:This paper briefly introduces the sewage plant sedimentation tank outer ring anchor tensioning process and process, and hope to play a role in the future of a variety of circular container construction of the outer ring anchor some reference.

Abstract:This paper is mainly based on the theory of cable-stayed bridges and partially cable-stayed bridges as well as its own experience in design and construction, in which the scientificity and feasibility of the widening and reconstruction program of the main bridge of Wuhe-Huaihe Highway Bridge are theoretically reviewed.

Abstract:The Xiamen Taikoo Aircraft Maintenance Base consists of a single-storey hangar hall and a three-storey annex building, designed by the China Academy of Space Architecture. The hangar hall consists of a diagonally placed cross grid and a steel arch spanning the main gate, with a span of 154m, a depth of 70m and a chord height of 27m. The part bearing the horizontal force of the arch is a non-bonded prestressed concrete structure. Its prestressed concrete structure part of the prestressing technology, by the China Academy of Building Research Chen Huiling is responsible for other prestressed structure and steel arch support connection, etc., by the Chen Huiling and mesh frame steel arch installation contracting company and civil engineering construction units and design institute Ding Yun Sun chief engineer to study agreed upon!

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Abstract:Introduce the design concept, structure design and technical indexes of triangular lightweight hanging basket for the construction of continuous box girder of Mianyang Fulingjiang Fourth Bridge.