A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Expansion joint device of municipal bridge
The invention provides a municipal bridge expansion joint device which comprises an elastic system, at least one first cavity and at least one second cavity are formed in the elastic system, and when a bridge expansion joint extends, the size of the first cavity is increased, and the size of the second cavity is reduced; when the bridge expansion joint is shortened, the volume of the first chamber is reduced, and the volume of the second chamber is increased; the first cavity and the second cavity contain elastic bodies, the total volume of the elastic bodies in the first cavity is smaller than a first preset volume, and the total volume of the elastic bodies in the second cavity is smaller than a second preset volume. The volume of the elastic body in the first cavity and the volume of the elastic body in the second cavity are both smaller than the preset volume of the first cavity and the preset volume of the second cavity, so that the elastic body can have movement allowance in the first cavity and the second cavity under the condition that the bridge slightly deforms and expands with heat and contracts with cold, and the position of the elastic body is variable; and elastic fatigue caused by long-term local stress of the elastic body is avoided.
本发明提供了一种市政桥梁的伸缩缝装置，包括：弹性系统，弹性系统内部具有至少一个第一腔室和至少一个第二腔室，当桥梁伸缩缝伸长时，第一腔室体积增大，第二腔室体积减小；当桥梁伸缩缝缩短时，第一腔室体积减小，第二腔室体积增大；第一腔室和第二腔室均容纳有弹性体，第一腔室内弹性体的总体积小于第一预设体积，第二腔室内弹性体的总体积小于第二预设体积。通过第一腔室和第二腔室中弹性体的体积均小于第一腔室和第二腔室的预设体积的设置，使得弹性体在桥梁轻微形变及热胀冷缩的情况下可以在第一腔室和第二腔室中留有活动余量，使得弹性体位置可变，避免弹性体长期局部受力而导致产生弹性疲劳。
Expansion joint device of municipal bridge
The invention provides a municipal bridge expansion joint device which comprises an elastic system, at least one first cavity and at least one second cavity are formed in the elastic system, and when a bridge expansion joint extends, the size of the first cavity is increased, and the size of the second cavity is reduced; when the bridge expansion joint is shortened, the volume of the first chamber is reduced, and the volume of the second chamber is increased; the first cavity and the second cavity contain elastic bodies, the total volume of the elastic bodies in the first cavity is smaller than a first preset volume, and the total volume of the elastic bodies in the second cavity is smaller than a second preset volume. The volume of the elastic body in the first cavity and the volume of the elastic body in the second cavity are both smaller than the preset volume of the first cavity and the preset volume of the second cavity, so that the elastic body can have movement allowance in the first cavity and the second cavity under the condition that the bridge slightly deforms and expands with heat and contracts with cold, and the position of the elastic body is variable; and elastic fatigue caused by long-term local stress of the elastic body is avoided.
本发明提供了一种市政桥梁的伸缩缝装置，包括：弹性系统，弹性系统内部具有至少一个第一腔室和至少一个第二腔室，当桥梁伸缩缝伸长时，第一腔室体积增大，第二腔室体积减小；当桥梁伸缩缝缩短时，第一腔室体积减小，第二腔室体积增大；第一腔室和第二腔室均容纳有弹性体，第一腔室内弹性体的总体积小于第一预设体积，第二腔室内弹性体的总体积小于第二预设体积。通过第一腔室和第二腔室中弹性体的体积均小于第一腔室和第二腔室的预设体积的设置，使得弹性体在桥梁轻微形变及热胀冷缩的情况下可以在第一腔室和第二腔室中留有活动余量，使得弹性体位置可变，避免弹性体长期局部受力而导致产生弹性疲劳。
Expansion joint device of municipal bridge
一种市政桥梁的伸缩缝装置
LAI MINGJING (author)
2023-04-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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