Spatial mechanical behaviors of long-span V-shape rigid frame composite arch bridges

2013 ◽  
Vol 47 (1) ◽  
pp. 59-73 ◽  
Author(s):  
Hongye Gou ◽  
Qianhui Pu ◽  
Junming Wang ◽  
Zeyu Chen ◽  
Shiqiang Qin
Keyword(s):  
Mechanical Behaviors ◽  
Long Span ◽  
Rigid Frame ◽  
Arch Bridges

scholarly journals Mechanical System Evolution and Reasonable Structural Design Parameters of Long-Span Deck-Type Beam-Arch Composite Rigid Frame Bridge

2020 ◽  
Vol 15 (6) ◽  
pp. 885-893
Author(s):  
Yanchao Ding ◽  
Zhongfu Xiang ◽  
Yayong Li ◽  
Xuesong Zhang ◽  
Yin Zhou
Keyword(s):  
Mechanical System ◽  
Structural Design ◽  
Composite System ◽  
Main Beam ◽  
Design Parameters ◽  
System Evolution ◽  
Long Span ◽  
Rigid Frame ◽  
Bridge Model ◽  
Arch Bridges

Long-span deck-type beam-arch composite rigid frame (BACRF) bridge fully integrates the merits of arch bridges and beam bridges, and overcomes the cracking and deflection problems of continuous rigid frame bridges. As a perfect combination of beam bridges and arch bridges, the long-span deck-type BACRF bridge boasts a light structure, a strong bearing capacity, and a powerful spanning capability. From the perspective of mechanical system evolution, this paper theoretically analyzes the structural mechanics of the beam-arch composite system, establishes a half-bridge model for BACRF bridge, and derives the expressions of the internal force and displacement of the beam-arch composite system. Next, finite-element analysis was conducted to analyze how the variation of a single parameter, e.g., rise-span ratio, open web ratio, and side-to-middle span ratio, affects midspan displacement, arch-beam junction displacement, main beam bending moment, and main arch axial force. Finally, the calculation formula for deflection-span ratio of BACRF bridge was proposed based on the maximum hyperplane method. The research results provide a reference for the structural design of similar bridges.

Study on the Construction Control of Long-Span V-Shape Rigid Frame Composite Arch Bridges

2011 ◽  
Vol 255-260 ◽  
pp. 1043-1047
Author(s):  
Hong Ye Gou ◽  
Qian Hui Pu ◽  
Jun Ming Wang ◽  
Guo Wei Hu ◽  
Ze Yu Chen
Keyword(s):  
Structural Alignment ◽  
Internal Force ◽  
Constant Load ◽  
Calculation Model ◽  
Construction Control ◽  
Whole Process ◽  
Long Span ◽  
Rigid Frame ◽  
Simulation Calculation ◽  
Arch Bridges

The construction scheme of long-span V-shape rigid frame composite arch bridge is discussed. In process of simulation calculation of the construction, the author compiles APDL command flow program by using the unit birth-death technique, establishes simulation calculation model in the construction process. The creep characteristics of concrete are also taken into account. The whole process of beam first-to-arch later stage construction are calculated and studied.By researching on construction control of Xiaolan channel super large bridge, the feasibility of the construction program is evaluated, the alignment and displacement in each construction ideal state are determined and the alignment and displacement in the following construction state are predicted. The stress controling results of the critical sections are researched on to make the construction go along well as designed, make sure the safety during construction, the structural internal force under constant load and structural alignment are complied with the design requirements and the construction quality and safety are ensured.

Analysis of Technical Characteristics and Construction Focus of Long-Span Continuous Rigid Frame Bridge with High-Rise Piers

2014 ◽  
Vol 587-589 ◽  
pp. 1637-1641
Author(s):  
Yao Cui ◽  
We Nang Hou ◽  
Fei Ying Liu
Keyword(s):  
Deep Water ◽  
Water Reservoir ◽  
Bridge Pier ◽  
Reservoir Area ◽  
High Rise ◽  
Construction Methods ◽  
Long Span ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Rigid Frame Bridge

Under the condition of the deep water reservoir area, the choice of bridge pier and long span continuous rigid frame beam construction methods are quite various. And the analysis of destruction of bridge depends mostly on the beam and piers. The paper cares mostly about these two parts.

Study of Reinforcing Mechanism of Rigid-Frame Arch Bridge Based on Static and Dynamic Analysis

2011 ◽  
Vol 219-220 ◽  
pp. 458-462
Author(s):  
Ze Ying Yang ◽  
Xi Bin Zhang ◽  
Jian Bo Qu
Keyword(s):  
Dynamic Properties ◽  
Element Model ◽  
Reinforcement Scheme ◽  
Arch Bridge ◽  
3 Dimensional ◽  
Static And Dynamic Analysis ◽  
Rigid Frame ◽  
Dimensional Finite Element ◽  
Arch Bridges ◽  
The Relationship

According to Dawenkou bridge, a seriously deteriorated rigid-frame arch bridge, typical deteriorations of rigid-frame arch bridges were summarized. Based on 3-dimensional finite element model of a rigid-frame arch bridge, the relationship between dynamic properties and deteriorations of the structure, especially the influence of lateral tie system on the dynamic properties of the structure was analyzed. The results show that, damages of lateral tie system in operation induced premature appearance of lateral vibration directly; however, the large curvature torsion of deck obviously should take the mainly responsibility of damages of lateral tie system. According to the above analysis, the corresponding reinforcement scheme and specific measures were proposed.

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