钢混结构混合桥桥面铺装体系受力分析——桃夭门大桥钢桥面铺装力(3)

2025-09-12

东南大学硕士学位论文

摘要

ABSTRACT

Deck

surfacing

is

technicaldifficultpointintheconstructionoflongspansteelbridges.The

are

workingconditionsandrequirementsoftheapplicationofsurfacing

farmorestringentthantheseof

ordinaryroadpavements.Withtheinfluenceofnaturalenvironmentandtrafficload,itiseasyfordeckto

bedamaged.Torecent,therehavenot

designmethodforcommonuse.InordertogetuDwiththefast

developmentoflongspanbridgesinChina,makingextensivestudyofthepavingstructuresanddo

some

researchesaboutmechanicsanalysiswillhaveimportanttheoreticalmeaningandapplication

value.

Usingthehierarchicalanalyticalmethod,thepapermakesthemechanicsanalysisofthepave.

Themainresearchesincludedthefollowingaspectsandgotthecorrelativeresults:

Firstly,usingtheaxialforceoftheprincipalbeam

as

thecontrolindex,thepapermakethe

was

mechanicsanalysisofthetwodimensionsFEAmodel,leastfavorablepositionsresearchwefindthattheinfluenceofthetemperaturestressislittle.

found.Thoughtthe

Secondly,fromintegraltopart,theinfluenceofbridgedeform

was

studied.Usingthecompute

simulateandthepracticetesting,wefindthatorthotropicsteelbridgedeckcanreflecttherealworkingconditionofbridgedeck

Thirdly,usingtheorthotropicsteelbridgedeckmodel,regularityofpaveunderthehorizontaland

ihevertica|Icad

was

found.

Finally,usingtheorthotropicsteelbridgedeckmodel,thedifferenceinfluenceofthesingle-wheel

anddouble-wheelwasstudiedandtheleastfavorablepositionswasfound.Wethinkthatsingle-wheelissafetywhen

use

themaxtensilestress

as

thecontrolindexandshouldchoosedouble‘wheelwhen

thesheardestroyofdeckbestudied.

【keywords]deck

wholedeformofbridgeorthotropicsteelbridgedeckmodelcontrolindex


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