An approximate method for dynamic analysis of skewed highway bridges with continuous rigid deck

Kalantari, Afshin; Amjadian, Mohsen

doi:10.1016/j.engstruct.2010.05.004

Cited by 28 publications

(11 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If we put e x = e y = 0 into [ K ] in equation (4) and solve the characteristic equation (i.e. |[ K ] − ω 2 [ M ]| = 0), we find that ω N = ( K N / M ) 0.5 , {φ N } = {1 + tanβ 0} T ; ω T = ( K T / M ) 0.5 , {φ T } = {−tanβ 1 0} T ; ω Θ = ( K Θ / I ) 0.5 , {φ Θ } = {0 0 1} T , where {φ N } and {φ T } represent the translational mode-shapes along the n - and t -axes, respectively, and {φ Θ } represents the rotational mode-shape (Amjadian, 2010; Kalantari and Amjadian, 2010b). These mode-shapes are graphically illustrated in Figure 3.…”

Section: Mathematical Modeling Of the Problemmentioning

confidence: 99%

“…Maleki (2001) studied the free vibration of symmetric single-span skew bridges and showed that the translational modes of these bridges are naturally coupled. Amjadian (2010) and Kalantari and Amjadian (2010a, 2010b) presented an approximate model for the seismic analysis of skew bridges by considering the reaction forces of elastomeric bearings at the abutments. They showed that the translational modes of a symmetric skew bridge deviate from the principal axes of the deck (Amjadian, 2010; Kalantari and Amjadian, 2010a, 2010b).…”

Section: Introductionmentioning

confidence: 99%

“…Amjadian (2010) and Kalantari and Amjadian (2010a, 2010b) presented an approximate model for the seismic analysis of skew bridges by considering the reaction forces of elastomeric bearings at the abutments. They showed that the translational modes of a symmetric skew bridge deviate from the principal axes of the deck (Amjadian, 2010; Kalantari and Amjadian, 2010a, 2010b). In their later study, they also tried to clarify the influence of seismic pounding on torsional responses of skew bridges (Kalantari and Amjadian, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…However, this assumption is still reasonable when investigating the seismic behavior of skew bridges. Consequently, this assumption has been used widely by many researchers to model the decks of skew bridges (Maragakis and Jennings, 1987; Maleki, 2001; Meng et al., 2001; Kalantari and Amjadian, 2010b). The third assumption is useful in simplifying the problem.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analytical study of the coupled motions of decks in skew bridges with the deck–abutment collision

Amjadian

Kalantari

Agrawal

2016

Journal of Vibration and Control

Self Cite

View full text Add to dashboard Cite

It has been observed from failures of highway bridges during major earthquakes that skew bridges are among the most vulnerable to seismic loading. It has been shown that the coupling between the translational motions of the deck and the collision of the deck with the abutments are two major factors influencing the vulnerability of skew bridges. This paper studies the influence of deck–abutment collision (seismic pounding) on the coupled motions of decks of skew bridges during strong earthquakes using an analytical approach. A three-degree-of-freedom model is presented to study key dynamic features of skew bridges. It is assumed that the deck of the model is rigid and the columns remain elastic during the ground motion. Contact planes between the deck and the abutments are idealized by several contact points pairwise arrayed at the end-span expansion joints. The mechanism of energy absorption and dissipation during the contact duration is simulated through the implementation of a nonlinear contact element between the contact points. A parametric study has been carried out by varying different parameters, including the skew angle (β), the size of the gap between the deck and the abutments at the end-span expansion joints (gap), and the normalized stiffness eccentricity along the x-axis ( ex/ r). The results of this study show that the transverse displacements of acute corners of the deck and the rotation of the deck about the mass center noticeably increase with the increases of β and ex/ r, and with the decrease of the gap.

show abstract

Section: Mathematical Modeling Of the Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analytical study of the coupled motions of decks in skew bridges with the deck–abutment collision

Amjadian

Kalantari

Agrawal

2016

Journal of Vibration and Control

Self Cite

View full text Add to dashboard Cite

show abstract

“…wm = Q}B; u}vJty [3] "OwW|t ?Qwt |=ypB ?Qwt |=ypB |]NQ}e MU=B QO ?QwD |x}w= R Q}F -=D |UQQ@ x@ OwOLt <= RH= pOt R= [4] [1513] "CU= xOW s=Hv= QwmPt x@ xHwD =@ ZQi u}= "Ovvm|t pta |mDre CQwY x@ =yxrwm QO xWQa |=yx=ox}mD x}HwD p@=k [1] 'u= Q=mty w Tov}vH \UwD pB |@=QN VQ= Ro QO xOW Qm P C=aq]= 'uqB %QDt %OL=w p}yCwi Q=wr@ QPoQ}R |kQW ?wvH pB |}xR=U O=a@= "6 pmW [10]…”

mentioning

confidence: 99%

پارامترهای تأثیرگذار در رفتار لرزه یی پل های مورب با استفاده از مدل دینامیکی ساده شده

اسدپور¹,

کلانتری²

2020

مهندسی عمران

View full text Add to dashboard Cite

|QDmO |wHWv=O QwBOU= |Oyt u=Q}= 'u=QyD '|tqU= O=R; x=oWv=O 'C=k}kLD w swra OL=w 'u=Qta |UOvyt xwQo Q=}O=DU= |QDvqm u}Wi= u=Q}= 'u=QyD 'xrRrR |UOvyt w |U=vWxrRrR |rrtr=u}@ x=oWywSB u}L QO =yv; |Q}PB?}U; |=v@t QO QFwt |=yQDt= Q=B w ?Qwt |=ypB Q=DiQ lQO |Q}PB?}U; QO Q=PoQ}F-=D |=yQDt= Q=B |}=U=vW "OQ=O Q=}U@ C}ty= '|}xRQr |=yl}QLD 'hrDNt |=yx@vH R= |L=Q] u}L QO Ov=wD@ ?Qwt pB K= Q] =D OW Oy=wN Ea=@ |}xRQr xDW=O ?Qwt pB QO |DNU O=H}= pt=wa`} RwD w xUOvy ?=NDv= R= |L}LY CN=vW Q}oQO |W=aDQ= |=yOwt R= |NQ@ '|UOvy \}=QW x@ xHwD =@ ?Qwt |=ypB QO "OW=@ u}tR`wkw u}L QO s=k QwLt pwL xWQa xHwD p@=k u= QwO '|]}= QW QO w xOw@ Cupled |x@re QO Q=PoQ}F-=D |=yQDt= Q=B uOQw; CUO x@ w |UQQ@ |= Q@ "CU= xOW xOy=Wt xRQr xHQO xU |Oa@xU pOt l} R= Q[=L VywSB QO '?Qwt |=ypB QO |v=QwO |=yOwt C=@U=Lt G}=Dv "CU= xOW xO=iDU= 'xOW |HvUCLY w x=Q= u}= R= V}B xm '|O= R; C@Uv %R= Ov=CQ=@a |v=QwO Owt uOW ?r=e QO Q=PoQ}F-=D |=yQDt= Q=B OyO|t u=Wv |OOa pB pm sQH C@Uv 'xWQa ZQa x@ pw] C@Uv '=yuwDU |rw] |DNU x@ |[Qa |DNU u; |rw] |DNU Q=Okt ?Q[pY=L x@ uwDU Qy |WJ}B |DNU C@Uv 'xR=UwQ sQH x@ ZQa x@ sQH RmQt R= =yuwDU |QwLtuwQ@ C@Uv 'pB |xWQa ZQa QwPHt QO uwDU p}yCwi Q=wr@ pB R= OwOLt <= RH= pOt l} '=y|UQQ@ |xt=O= QO "?QwD |x}w= R w 'xWQa ?QwD |x}w= R xm 'Q_v OQwt |=ypB |}xRQr Q=DiQ QO Q=PoQ}F-=D QDt=Q=B u} QDsyt w xOW O=H}= '?QwD |x}w= R V}=Ri= =@ OvyO|t u=Wv xOt; CUO x@ G}=Dv "CU= xOW |UQQ@ 'CU= "O@=}|t V}=Ri= xWQa sQH RmQt Q@ s=k QwLt pwL xWQa u= QwO

show abstract

Comparative Study of Seismic Analysis and Design of Different Types of Bridge Abutments

Kumbar,

Bhusari,

Panjwani

et al. 2023

Techno-Societal 2022

View full text Add to dashboard Cite

An approximate method for dynamic analysis of skewed highway bridges with continuous rigid deck

Cited by 28 publications

References 12 publications

Analytical study of the coupled motions of decks in skew bridges with the deck–abutment collision

Analytical study of the coupled motions of decks in skew bridges with the deck–abutment collision

پارامترهای تأثیرگذار در رفتار لرزه یی پل های مورب با استفاده از مدل دینامیکی ساده شده

Comparative Study of Seismic Analysis and Design of Different Types of Bridge Abutments

Contact Info

Product

Resources

About