1 research outputs found
ΠΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠ° ΡΡΠ°ΡΡΠΊΠΎΠ² ΠΌΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΠΎΠ»ΠΎΡΠ½Π° ΠΈ ΠΏΠΎΠ΄Ρ ΠΎΠ΄ΠΎΠ² Π² Π·ΠΎΠ½Π°Ρ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ ΡΠ²ΠΎΠ² Π½Π° Π°Π²ΡΠΎΠ΄ΠΎΡΠΎΠΆΠ½ΡΡ ΠΌΠΎΡΡΠ°Ρ
The object of the study is durability of expansion joints in bridge structures; the subject of the research is the vibration response of a structure obtained under conditions of natural operation. Diagnostics of the road bridge expansion joints has been carried out in order to identify characteristic dependences Β between the value of structure vibration response and types of expansion joint designs during the period of their operation while taking into account the features of the bridge structure. For this purpose, we have tested the methodology for collecting and processing data on the vibration response of the structure under natural conditions of its operation. The paper presents results of data collection on the coverage topology which have been obtained while using three-dimensional scanning method. Data collection on the vibration response of the structure has been carried out by measuring the vibration velocity and deformation of the structure. The data obtained are analyzed. As a result of testing and analysis of the obtained data, the main characteristics have been revealed: the value of base unevenness, the amplitude of vibration velocity and vibration displacement of the structure elements. Two main parameters of the dynamic impact have been assigned, adjusted for the mass of a moving vehicle, which can be used as main parameter for assessing the magnitude of the dynamic impact. A comprehensive method for assessing the dynamic impact on bridge structures has been developed and proposed in the paper, and its use will make it possible to differentiate various designs of expansion joints according to the magnitude of the dynamic impact of vehicles. This, in its turn, will contribute to formulate new recommendations on the use of specific types of expansion joints for various categories of highway, which will increase operational durability ofΒ expansion joints and the structure as a whole.ΠΠ±ΡΠ΅ΠΊΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π΄ΠΎΠ»Π³ΠΎΠ²Π΅ΡΠ½ΠΎΡΡΡ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠ² ΠΌΠΎΡΡΠΎΠ²ΡΡ
ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΠΉ, ΠΏΡΠ΅Π΄ΠΌΠ΅Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π²ΠΈΠ±ΡΠΎΠΎΡΠΊΠ»ΠΈΠΊ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠΉ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π΅ΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΈ. ΠΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠ° Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠ² Π°Π²ΡΠΎΠ΄ΠΎΡΠΎΠΆΠ½ΡΡ
ΠΌΠΎΡΡΠΎΠ² ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»Π°ΡΡ Ρ ΡΠ΅Π»ΡΡ Π²ΡΡΠ²Π»Π΅Π½ΠΈΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΡΡ
Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠ΅ΠΉ ΠΌΠ΅ΠΆΠ΄Ρ Π²Π΅Π»ΠΈΡΠΈΠ½ΠΎΠΉ Π²ΠΈΠ±ΡΠΎΠΎΡΠΊΠ»ΠΈΠΊΠ° ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ ΠΈ ΡΠΈΠΏΠ°ΠΌΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠ² Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΏΠ΅ΡΠΈΠΎΠ΄Π° ΠΈΡ
ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΈ Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΠΌΠΎΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ. ΠΠ»Ρ ΡΡΠΎΠ³ΠΎ Π°ΠΏΡΠΎΠ±ΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΡ ΡΠ±ΠΎΡΠ° ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ Π΄Π°Π½Π½ΡΡ
ΠΎ Π²ΠΈΠ±ΡΠΎΠΎΡΠΊΠ»ΠΈΠΊΠ΅ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ Π² Π΅ΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π΅Π³ΠΎ ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΈ. Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ±ΠΎΡΠ° Π΄Π°Π½Π½ΡΡ
ΠΎ ΡΠΎΠΏΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠΎΠΊΡΡΡΠΈΡ, ΡΠΎΠ±ΡΠ°Π½Π½ΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΡΠ΅Ρ
ΠΌΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΊΠ°Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. Π‘Π±ΠΎΡ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΎ Π²ΠΈΠ±ΡΠΎΠΎΡΠΊΠ»ΠΈΠΊΠ΅ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΈ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π²ΠΈΠ±ΡΠΎΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΉ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΈΡΠΏΡΡΠ°Π½ΠΈΡ ΠΈ Π°Π½Π°Π»ΠΈΠ·Π° ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
Π²ΡΡΠ²Π»Π΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ: Π²Π΅Π»ΠΈΡΠΈΠ½Π° Π½Π΅ΡΠΎΠ²Π½ΠΎΡΡΠΈ ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΡ, Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Π° Π²ΠΈΠ±ΡΠΎΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈ Π²ΠΈΠ±ΡΠΎΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΠ΅ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ. ΠΠ°Π·Π½Π°ΡΠ΅Π½Ρ Π΄Π²Π° ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ° Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Ρ ΠΏΠΎΠΏΡΠ°Π²ΠΊΠΎΠΉ Π½Π° ΠΌΠ°ΡΡΡ Π΄Π²ΠΈΠΆΡΡΠ΅Π³ΠΎΡΡ ΡΡΠ°Π½ΡΠΏΠΎΡΡΠ½ΠΎΠ³ΠΎ ΡΡΠ΅Π΄ΡΡΠ²Π°, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΈ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½Π°Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΡΠ΅Π½ΠΊΠΈ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½Π° ΠΌΠΎΡΡΠΎΠ²ΡΠ΅ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ. ΠΠ΅ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΡΠΎΠ²Π°ΡΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠ² ΠΏΠΎ Π²Π΅Π»ΠΈΡΠΈΠ½Π΅ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΡΡΠ°Π½ΡΠΏΠΎΡΡΠ½ΡΡ
ΡΡΠ΅Π΄ΡΡΠ². ΠΡΠΎ Π² ΡΠ²ΠΎΡ ΠΎΡΠ΅ΡΠ΅Π΄Ρ ΠΏΠΎΠΌΠΎΠΆΠ΅Ρ ΡΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ Π½ΠΎΠ²ΡΠ΅ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°ΡΠΈΠΈ ΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΡ
ΡΠΈΠΏΠΎΠ² ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠ² Π΄Π»Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΊΠ°ΡΠ΅Π³ΠΎΡΠΈΠΉ Π°Π²ΡΠΎΠΌΠΎΠ±ΠΈΠ»ΡΠ½ΡΡ
Π΄ΠΎΡΠΎΠ³, ΡΡΠΎ ΠΏΠΎΠ²ΡΡΠΈΡ Π΄ΠΎΠ»Π³ΠΎΠ²Π΅ΡΠ½ΠΎΡΡΡ ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΈ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ²ΠΎΠ² ΠΈ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ Π² ΡΠ΅Π»ΠΎΠΌ