虹桥综合交通枢纽弱连体结构的抗震设计与分析
时间:2025-04-24
时间:2025-04-24
祷39卷增刊建筑结构
2009年4月
虹桥综合交通枢纽弱连体结构的抗震设计与分析
汪大绥,
周
健,
王
建,江晓峰,
苏
骏,陈红宇,
施志深,王瑞峰
(现代设计集团华东建筑设计研究院有限公司,上海200002)
[摘要】
连体结构是一类复杂的建筑结构形式,连廊连接方式不利时可能严重影响主体结构的抗震性能,必需应
用合理的技术方案和分析手段以保证结构的抗震可靠性。作为上海市的重点建设项目,虹桥综合交通枢纽工程的东交通中心和两航站楼存在体型复杂和竖向刚度不规则等多项单体超限内容,而高空连廊搭接方案进一步加大了
结构设计难度,经多次技术论证,确定采用弱连接方案。为验证该方案的可靠性,提出了一种基于LS.DYNA程序
和自编子程序的弹塑性时程分析方法,其可靠性得到了试验数据的有力支持,而以“角点应变法”为基础的塑性铰
简化评价方法也为结构抗震性能评估提供了一种新的尺度。计算结果表明,弱连接设计条件下的主体结构具有良
好的抗震性能,连廊在一定程度上有助于减缓主体结构的动力需求。[关键词】
虹桥交通枢纽;弱连体结构;减震设计;弹塑性时程分析;纤维积分法;角点应变法SeismicDesignandDynamicAnalysisofHongqiaoIntegratedTransportHub
with
a
Weakly
ConnectedStructure
WangDasui,ZhouJian,WangJian,JiangXiaofeng,SuJun,ChenHongyu,ShiZhisheng,WangRuifeng(EastChinaArchitecturaldesignandResearchInstituteCo.Ltd,XianDaiArchitecturalDesignGroup,Shanghai200002,China)
Abstract:Connectedstmetureiscorridordesigncouldbeadverse
one
kindofbuilding
systems
with
mostlycomprehensivebehaviors,whereunreasonablestructure,thus,goodtechnologiesandtools
one
to
theseismicperformanceofmain
inthe
phaseofdesignandanalysisshouldbeadoptedforensuringthestructuralreliability.AsShanghai,theEast
overrunning
ofkeyconstructionprojectsin
TransportCentralandWestTerminal
as
Building
ofHongqiao
Integrated
TransportHubhadseveral
high
construction
items,such
complexshapeinplaneandirregularityofvertical
to
many
stiffness,furthermore,the
forcorridorincreasedthedifficultyofstructuraldesign.AccordingprincipleDYNA
was
technicaldemonstrations,theweakconnection
method
was
approvedanditsfeasibility
and
user
was
proofedby
anew
historyanalysismethod.This
one
based
on
LS—
program
subroutinewithgoodsupportsby
was
experimentalresults,andresultsshow
that
comer—point
are
strainmethodfor
seismic
accessingroughlyplastichinge
also
put
forward.Thethemain
a
structures
ofgood
performaneeandtheirdynamicdemandscouldbereducedbythecorridorwith
weakconnection.
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