محبوبترین نویسندگان :
نویسندگان مقالات پربازدید :
هشتمین کنگره ملی مهندسی عمران
جزئیات رویداد
همایش ، رویداد ، ژورنال
اینستاگرام تی پی بین
حوزه های تحت پوشش رویداد

  • in-plane response of a three-span simply supported bridge to near-fault strong ground motion

    نویسندگان :
    کلمات کلیدی :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1207
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this paper a simple model of a three-span simply supported bridge excited by the horizontal component of fault-normal pulse with different magnitudes and time lags has been considered. in the considered model the axially rigid mass-less piers are connected at the top to the rigid decks by hinges and at the bottom to the ground by linear rotational springs and dashpots. for determination of the pounding force between decks, the linear viscoelastic model has been chosen. it is assumed that the bridge is near the fault and the excitations at all piers have the same amplitude but differ in terms of phase. the system of equations of motion has been solved by the fourth-order runge-kutta method because of its self-starting feature and the long-range stability. for a range of main period of the bridge, the maximum impact force between decks and the minimum gap size required to avoid collision can be determined under fault-normal pulse with different magnitudes and time lags. it could be concluded from the results that time lag plays a very important role in determining maximum impact force and it’s better to use softer piers to reduce the maximum impact force and the minimum gap size required to avoid collision between decks.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها