Near field is bridge tensile device for earthquake

• Main Authors: CAO WENGKAI, LI XIN, FANG LIANG, CHEN XINPEI, FENG SISI, LUO DENGFA, WANG YONG, LI ZHIWEN, ZENG XIANPING, ZHANG KE, ZHANG YONGZHAO, HAN JIASHAN, GU HAILONG, XU JIANG, GAO YUN
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2018
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The utility model provides a near field is bridge tensile device for earthquake, by the pull rod that is the cylinder type, the setting is constituteed with the revolute pair that sets up at tensile sleeve section of thick bamboo intracavity at the tensile sleeve of pull rod top, the tensile through -hole has been seted up at tensile telescopic bobbin base center, the upper end of pull rod is passed behind the tensile through -hole, and set up in the tensile sleeve through the revolute pair is fixed, the roof beam body drives hole around the pull rod top cylinder emergence normal displacementthat the tensile sleeve passes through the sleeve bottom during normal operating, the tensile sleeve drives the revolute pair and produces the rotation simultaneously, roof beam body normal conditionslides down and the pivoted requirement in order to guarantee, when the near field earthquake takes place, receive the effect of vertical earthquake power, bridge tensile device passes through the tensile sleeve, the pull rod