Arch Bridges

2014 ◽  
pp. 325-378 ◽  
Keyword(s):  
Arch Bridges

Research on the Strengthening of Double-curvature Arch Bridges

2003 ◽  
Vol 87 (9) ◽  
pp. 207-213
Author(s):  
Zhiguo Zhang ◽  
Tiejun Lu ◽  
Jingchun Wang
Keyword(s):  
Double Curvature ◽  
Arch Bridges

Concrete performance time-varying effect of CFST arch bridges

2021 ◽  
Author(s):  
Pengzhen Lu ◽  
Dengguo Li ◽  
Tao Hong ◽  
Yangrui Chen ◽  
Qingtian Shi
Keyword(s):  
Time Varying ◽  
Performance Time ◽  
Arch Bridges

scholarly journals Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low-Temperature Conditions

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Tuo Shi ◽  
Nianchun Deng ◽  
Xiao Guo ◽  
Wen Xu ◽  
Shi Wang
Keyword(s):  
Compressive Strength ◽  
Low Temperature ◽  
Performance Test ◽  
Large Diameter ◽  
Test Site ◽  
Steel Tube ◽  
Design Strength ◽  
Curing Conditions ◽  
Expansive Agent ◽  
Arch Bridges

Taking the construction of a concrete-filled steel tube (CFST) arch bridge (part of the Sichuan-Tibet Railway) in low temperatures as the test site, firstly the deformation performance test of concrete was carried out. Following this initial testing, measurement of compressive strength and shrinkage performance was conducted in large-diameter CFSTs under a variety of curing conditions. Experimental results showed that the expansion effect of Ca-Mg composite expansive agent in concrete was better than that of other expansive agents at any stage. Under low-temperature curing (0°C), the sampling strength of the large-diameter CFSTs reached 73.5% of the design strength at 28 d in the presence of a nonthermal curing system. The design strength itself was reached, when a curing system involving a thermal insulation film was applied, and use of this film also led to improvements in concrete shrinkage. The results suggested that a Ca-Mg composite expansive agent, combined with an insulation film curing system, should be the technique selected for concrete pumping construction of CFST arch bridges in Tibet.

Early loading of mandibular full-arch bridges screw retained after 1 week to four to five Monotype®implants: 3-year results from a prospective multicentre study

2008 ◽  
Vol 19 (7) ◽  
pp. 693-703 ◽  
Author(s):  
Kristina Arvidson ◽  
Ove Esselin ◽  
Ewa Felle-Persson ◽  
Goran Jonsson ◽  
Jan-Ivan Smedberg ◽  
...  
Keyword(s):  
Multicentre Study ◽  
Prospective Multicentre Study ◽  
Early Loading ◽  
Arch Bridges

Research on Hoisting Equipment of Pre-Fabricated Abutment and Pier in Hong Kong-Zhuhai-Macao Bridge

2012 ◽  
Vol 256-259 ◽  
pp. 1609-1613
Author(s):  
Fu Qiang Chen ◽  
Wei Tian ◽  
Li Sheng Qin
Keyword(s):  
Hong Kong ◽  
Marine Environment ◽  
Pile Foundation ◽  
Suspension System ◽  
Arch Bridges ◽  
Working Method

The non-navigable arch bridges of Hong Kong-Zhuhai-Macao Bridge use embedded prefabricated pile foundation. According to the technology difficulties of pre-fabricated abutment and pier lifting construction under marine environment, A kind of suspension system with hoisting and positioning function is put forward and designed, of which the structure and working method were introduced in this paper.

Upgrading of three historic arch bridges over the Orange River near Keimoes, South Africa

2014 ◽  
Vol 102 (21) ◽  
pp. 1260-1267
Author(s):  
Edward Smuts ◽  
Abé Newmark ◽  
Edwin Kruger ◽  
Elma Lourens
Keyword(s):  
South Africa ◽  
Arch Bridges
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