Ktl-icon-tai-lieu

Mô hình phân tích vách

Được đăng lên bởi quocdiep-vpop-52ksxd
Số trang: 8 trang   |   Lượt xem: 368 lần   |   Lượt tải: 0 lần
  ✁
✵✢✶ ✗✢✜✸✟✡✷✢✠☞✹✺☛ ✠✡✌✎✻☞✍✑✷✽✏✓✼✢✒✕✼✚✷✡✔✖✻✕✔✘✒✾✗✚✯☞✙✓✿ ✶✬✛ ✗✢❀❂✜✣❁ ✜✥✛ ✤✦✫❄✛ ✗✣❃✘✙★✗☞✧✆✛ ❅✚✜✣✜✥✩✪✤✴✌✢✭✥✛✫✬☛ ❆✚✗☞✻✳✛ ✩✦❇❂✭✮✜✪✒✰❈❊✯✬❉✦✗✲✱✳✯✳✜✥✤●✤✴❋✥✜✥✻✡✗✢❇❍✩✣❉✜ ✂
✆✄ ☎✝☎✞✄
SEISMIC RESPONSE OF REINFORCED CONCRETE BEARING WALLS, 2D
AND 3D F.E. SIMPLIFIED ANALYSIS
Frédéric Ragueneau1,
Géraldine Casaux2,
and Jacky Mazars3, Member ASCE
ABSTRACT
This paper deals with the behavior of reinforced concrete bearing walls subjected to seismic loading.
The presentation focuses on the numerical tools dedicated to nonlinear transient simplified analysis
allowing parametrical studies. In a first step, the multifibers beam approach is presented as well as the local
nonlinear constitutive equations. Comparisons between experimental results and numerical computation
for 2-D and 3-D case-study are presented.
Keywords: seismic engineering, constitutive relations, transient analysis, simplified analysis

INTRODUCTION
Concerning the study of load bearing walls commonly used in France. Research programs
(experiments and modeling) have been carried out on the topic focusing around the realization of
experiments on mock-ups (scale 1/3rd) performed on a seismic shaking table. The main purpose
of this experimental program consists in demonstrating the ability of reinforced concrete bearing
walls to bear seismic loading. The specific design concept is based on the multifuse principle
favoring rupture occurrence at several storeys for a slightly reinforced concrete wall. This kind of
design leads to lower percentages of reinforcements with their optimized distribution which may
generate a wider crack pattern allowing the dissipation of great amounts of energy, and as a
consequence, a vertical rising of the masses resulting in energy transformation (from kinematic to
potential). Thus ductility is obtained thanks to this particular means to dissipate the earthquake
input energy.
The studied structure is a mock-up of a building composed of two parallel reinforced concrete
load-bearing walls. The behavior of those under the effect of seismic loadings remains a delicate
topic with many regards. Indeed, the three principal elements of a calculation must be taken into
1

Laboratoire de Mécanique et Technologie, ENS-Cachan, 94235 France. E-mail: ragueneau@lmt.ens-cachan.fr
Laboratoire de Mécanique et Technologie, ENS-Cachan, 94235 France. E-mail: casaux@lmt.ens-cachan.fr
3
L3S - Institut National Polytechnique de Grenoble, BP53, F-38041 Grenoble – E-mail: Jacky.Mazars@inpg.fr

2

account wit...
SEISMIC RESPONSE OF REINFORCED CONCRETE BEARING WALLS, 2D
AND 3D F.E. SIMPLIFIED ANALYSIS
Frédéric Ragueneau
1
,
Géraldine Casaux
2
,
and Jacky Mazars
3
, Member ASCE
ABSTRACT
This paper deals with the behavior of reinforced concrete bearing walls subjected to seismic loading.
The presentation focuses on the numerical tools dedicated to nonlinear transient simplified analysis
allowing parametrical studies. In a first step, the multifibers beam approach is presented as well as the local
nonlinear constitutive equations. Comparisons between experimental results and numerical computation
for 2-D and 3-D case-study are presented.
Keywords: seismic engineering, constitutive relations, transient analysis, simplified analysis
INTRODUCTION
Concerning the study of load bearing walls commonly used in France. Research programs
(experiments and modeling) have been carried out on the topic focusing around the realization of
experiments on mock-ups (scale 1/3rd) performed on a seismic shaking table. The main purpose
of this experimental program consists in demonstrating the ability of reinforced concrete bearing
walls to bear seismic loading. The specific design concept is based on the multifuse principle
favoring rupture occurrence at several storeys for a slightly reinforced concrete wall. This kind of
design leads to lower percentages of reinforcements with their optimized distribution which may
generate a wider crack pattern allowing the dissipation of great amounts of energy, and as a
consequence, a vertical rising of the masses resulting in energy transformation (from kinematic to
potential). Thus ductility is obtained thanks to this particular means to dissipate the earthquake
input energy.
The studied structure is a mock-up of a building composed of two parallel reinforced concrete
load-bearing walls. The behavior of those under the effect of seismic loadings remains a delicate
topic with many regards. Indeed, the three principal elements of a calculation must be taken into
1
Laboratoire de Mécanique et Technologie, ENS-Cachan, 94235 France. E-mail: ragueneau@lmt.ens-cachan.fr
2
Laboratoire de Mécanique et Technologie, ENS-Cachan, 94235 France. E-mail: casaux@lmt.ens-cachan.fr
3
L3S - Institut National Polytechnique de Grenoble, BP53, F-38041 Grenoble – E-mail: Jacky.Mazars@inpg.fr
Mô hình phân tích vách - Trang 2
Để xem tài liệu đầy đủ. Xin vui lòng
Mô hình phân tích vách - Người đăng: quocdiep-vpop-52ksxd
5 Tài liệu rất hay! Được đăng lên bởi - 1 giờ trước Đúng là cái mình đang tìm. Rất hay và bổ ích. Cảm ơn bạn!
8 Vietnamese
Mô hình phân tích vách 9 10 97