Nonlinear Seismic Behaviors of Girder Bridge with Single-Column Pier

2010 ◽  
Vol 163-167 ◽  
pp. 4165-4169
Author(s):  
Wen Liang Qiu ◽  
Le Zhou ◽  
Yu Zhang
Keyword(s):  
Plastic Hinge ◽  
Time History ◽  
Rigid Frame ◽  
History Analysis ◽  
Single Column ◽  
Bridge Structures ◽  
Continuous Girder Bridge ◽  
Girder Bridge ◽  
Seismic Behaviors ◽  
Rigid Frame Bridge

Based on the shortcomings of the continuous girder bridge with single column pier, two-span T-shape rigid-frame bridges with single integral pier and two separated piers are put forward in this paper. Using time-history analysis and considering the material nonlinearity of reinforced concrete of the pier, the nonlinear seismic responses of the three bridge structures subjected to horizontal seismic wave are analyzed. The results show that, compared with continuous girder bridge, the shear forces of the two types of T-shape rigid-frame bridge are bigger, the moments of the T-shape rigid-frame bridges is smaller, and rotation angle of plastic hinge of T-shape rigid-frame bridge is much smaller. The energy dissipation and the anti-seismic capacities of T-shape rigid-frame bridges are better than continuous girder bridge under the condition that the shear resistance capacity of pier is secure.

Time-History Analysis of Pre-Stress Loss of Four-Spans Pre-Stressed Continuous Rigid Frame Bridge

2014 ◽  
Vol 587-589 ◽  
pp. 1462-1467
Author(s):  
Jin Yu Liu ◽  
Yang Zou ◽  
Peng Peng Zheng
Keyword(s):  
Time History ◽  
Beam Deflection ◽  
Main Beam ◽  
Concrete Creep ◽  
Rigid Frame ◽  
History Analysis ◽  
The Us ◽  
Aashto Lrfd ◽  
Rigid Frame Bridge ◽  
Creep And Shrinkage

Taking Guizhou Hezhang Bridge as the engineering background, this paper used Midas/Civil FEM platform to study the pre-stress loss and deformation of main girder in bridge construction stage and completion stage on the basis of concrete creep and shrinkage formulas provided by “Highway reinforced concrete and pre-stressed concrete bridge design code (JTG D62-2004)” and the US bridge standard – AASHTO LRFD – published in 2005. The results showed that the pre-stress pipeline friction losses calculated according to the two standards are basically the same. The loss of the anchor deformation, elastic compression and tendon relaxation obtained by AASHTO LRFD is slightly greater than that obtained by JTG D62-2004. However, due to the different computing models, both pre-stress loss and the main beam deflection caused by concrete creep and shrinkage obtained by AASHTO LRFD are larger than that by JTG D60-2004.

Analysis on Seismic Performance of Corrugated Steel Web Continuous Rigid Frame Bridge

2014 ◽  
Vol 501-504 ◽  
pp. 1471-1476
Author(s):  
Yi Qiang Wang ◽  
Bing Bing Fan ◽  
Liang Li
Keyword(s):  
Seismic Performance ◽  
Time History ◽  
Element Analysis ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
History Analysis ◽  
The Finite Element Analysis ◽  
Corrugated Steel Web ◽  
Dynamic Time ◽  
Rigid Frame Bridge

Corrugated steel web continuous rigid frame bridge is a new form of bridge. Using the finite element analysis software Midas Civil to analyze dynamic characteristics of the corrugated steel web continuous rigid frame bridge in a method of subspace iron and the nonlinear dynamic time history analysis method is used to analyze the seismic performance of the bridge, then compared with the ordinary concrete web continuous rigid frame bridge. The results show that the natural frequency of the corrugated steel web continuous rigid frame bridge is smaller than that of the concrete web continuous rigid frame bridge, and the seismic performance of the corrugated steel web continuous rigid frame bridge is superior to that of concrete web continuous rigid frame bridge, the improvement of the seismic performance of piers is most significant.

scholarly journals Seismic Performance Analysis of Continuous Rigid Frame Bridges in Expressway under Non-linear Interactions of Soil-Piles

2018 ◽  
Vol 175 ◽  
pp. 04037
Author(s):  
FENG Yongbing
Keyword(s):  
Response Spectrum ◽  
Time History ◽  
Time History Analysis ◽  
Structural Safety ◽  
Response Spectrum Method ◽  
Spectrum Method ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
History Analysis ◽  
Rigid Frame Bridge

Taking the three-span pre-stressed concrete continuous rigid frame bridge as an engineering example, MIDAS Civil was utilized to establish a spatial finite element model and the interaction between pile foundation and the soil was simulated by equivalent soil spring. In addition to analyzing shearing force, bending moment and stress of the primary beam's characteristic section under different loads, a response spectrum method and time history analysis were adopted to conduct seismic response analysis respectively. In this case, performance of the bridge could be comprehensively evaluated. Relevant analysis results indicate that internal force of the large-span pre-stressed concrete continuous rigid frame bridge is mainly induced by gravity and pre-stress of the structure; section stresses of the primary beam satisfy the corresponding specification and structural safety can be achieved in a state of operation. Moreover, computed results obtained by the response spectrum method is more conservative than those of the time history analysis. In terms of continuous rigid frame bridge, different seismic directions should be taken into consideration during structural seismic analysis at different construction stages.

Application of Displacement Back Analysis in Geometry Monitoring of Segmental Construction of Prestressed Concrete Continuous Girder Bridge

2013 ◽  
Vol 838-841 ◽  
pp. 1082-1086
Author(s):  
Xue Xian Sun ◽  
Zhen Liu
Keyword(s):  
Prestressed Concrete ◽  
Back Analysis ◽  
Analysis Method ◽  
Construction Monitoring ◽  
Rigid Frame ◽  
Analysis Theory ◽  
Displacement Back Analysis ◽  
Continuous Girder Bridge ◽  
Girder Bridge ◽  
Rigid Frame Bridge

This paper apply displacement back analysis theory for geometry form monitoring and calculating work of segmental construction of prestressed concrete continuous girder bridge, making use of displacement back analysis method to optimize bridge structure parameters, ensuring accuracy of geometry form control with calculated results of every girder segment in entire construction. This method is used in the construction monitoring and supervision for Yuanyichang circular curved rigid frame bridge on Pingan-Adai highway, to make the closure accuracy and the bridge geometry form reaches the effect of aspiration. Through the result of the finished bridge, what we can obtain is that the displacement back analysis theory could fulfill the requirement of factual project and be widely used for geometry monitoring of segmental construction of prestressed concrete continuous girder bridge.

Development of Techniques for the Construction of PC Composite Box-Girder Bridge with Corrugated Steel Webs

2014 ◽  
Vol 501-504 ◽  
pp. 1182-1186 ◽  
Author(s):  
Kong Jian Shen ◽  
Pei Feng Li ◽  
Qiao Wang ◽  
Shui Wan
Keyword(s):  
Box Girder ◽  
Construction Methods ◽  
Rigid Frame ◽  
Construction Techniques ◽  
Continuous Girder Bridge ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Cantilever Construction ◽  
Beam Bridge ◽  
Rigid Frame Bridge

This paper presents a survey of construction techniques for pre-stressed concrete (PC) box-girder bridge with corrugated steel webs in recent decades. The structural forms of the bridge have experienced simply supported beam bridge, continuous girder bridge, cable-stayed bridge and the continuous rigid frame bridge. Meanwhile, the construction technologies were constantly innovated, including cast-in-situ, precast and the combination of them. The processing and installation technologies of corrugated steel webs and several typical construction techniques for PC box-girder with corrugated steel webs were elaborated, such as full framing construction, cantilever construction, span-by-span construction, incremental launching construction and some other various innovative ways. The valuable experiences in a variety of construction methods were summed up. The results show that some innovative construction ways should be developed by fully utilizing the corrugated steel webs as a guide beam or a work platform to improve the efficiency of construction.

Seismic Response on the Mangjiedu Long-Span PC Continuous Rigid Frame Bridge with High Piers

2013 ◽  
Vol 444-445 ◽  
pp. 1265-1271
Author(s):  
Jian Bin Xie ◽  
Deng Feng Hu ◽  
Miao Fu ◽  
Chang Chang Wu
Keyword(s):  
Seismic Response ◽  
Spectrum Analysis ◽  
Response Spectrum ◽  
Time History ◽  
Response Spectrum Analysis ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
History Analysis ◽  
Rigid Frame Bridge ◽  
Main Bridge

The selected high-span continuous rigid frame bridge for studying is Mangjiedu Bridge in this paper. Based on the principle of structure dynamics and the method of seismic response analysis, the finite element model of the main bridge in Mangjiedu Bridge under Midas-civil was built according to the structural features, site conditions and seismic fortification intensity of the bridge. Then the characteristics of main bridge structure were studied using Lanzcos modal analysis method, and the seismic responses of main bridge are studied by earthquake response spectrum analysis and time history analysis respectively. The results show that the fundamental frequency of the main bridge is 0.1943Hz, and the transverse vibration mode shapes are most remarkable in the former 10 ordered types of vibration of main bridge. The main bridge is in the conditions of elastic range and does not failure under E1 earthquake. Both response spectrum analysis and time history analysis show that the largest displacement along the main bridge appears at the top of pier and the largest transverse displacement appears in the central position of main span. It also shows that the maximum shear and maximum moment occur at the bottom of main pier.

scholarly journals Seismic Damage Study of Asymmetric Continuous Rigid Frame Bridge Based on Nonlinear Time History Analysis

2015 ◽  
Vol 9 (1) ◽  
pp. 489-494
Author(s):  
Wu Tong ◽  
Sun Quansheng
Keyword(s):  
Seismic Response ◽  
Time History ◽  
Seismic Damage ◽  
Time History Analysis ◽  
Nonlinear Time History Analysis ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
History Analysis ◽  
Nonlinear Time History ◽  
Rigid Frame Bridge

Continuous rigid frame bridge is a common type of bridge in California, where is a seismically active areas. Main structural features of the bridge, including asymmetry, hinge structure, concretion of girder and piers affect the seismic response of the bridge significantly. In order to evaluate the safety of the bridge under earthquake, the nonlinear models of girder, limiting steels in hinge, abutment backfill, abutment bearing, pier are simulated in great detail, and a numerical dynamic overall model, composed of the above components, is made through OpenSees program. On the basis of nonlinear time history analysis with Northridge earthquake load, seismic damage of this kind of bridge is monitored. The research results acquire the accurate damage area of the bridge. Under earthquake, asymmetric continuous rigid frame bridge with curved girder tends to move to the external rim of curve. Asymmetry is detrimental to coinstantaneous vibration of frames, which can cause the large nonlinear damage of limiting steels in hinge. Due to large longitudinal relative seismic response between girder and abutment, the damage of abutment bearing and backfill could be severe. The area on the top and bottom of shorter piers in both sides of bridge is vulnerable because longitudinal steel bars in these areas are liable to yield under repeating shaking of earthquake.

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