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Reinforced Concrete Shear Block Construction for Increasing the Seismic Capacity and Lateral Loading of Multi-Span Integral Bridges Using PC Beams
Reinforced Concrete Shear Block Construction for Increasing the Seismic Capacity and Lateral Loading of Multi-Span Integral Bridges Using PC Beams
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机译：钢筋混凝土剪力砌块结构，利用PC梁提高多跨整体式桥梁的抗震能力和侧向荷载
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摘要
The present invention relates to a reinforced concrete shear block construction method for increasing the seismic resistance and lateral displacement of a multi-span integral bridge using a PC beam of two or more spans. In the conventional multi-span PC beam bridge, , One or more transverse fixed end bearings (ie, permitting displacement in the throttling direction, fixing displacement in the direction orthogonal to the throttling) are used in order to restrain the temperature displacement about the transverse direction of the bridge Has been used. However, in the case of an integral type bridge, since the two types of bridges are alternately embedded and fixed, there is no need to use the fixed-end bearings used in the existing bridges, Bi-directional movable bearings (that is, permitting displacements in the direction of the throttling axis and perpendicular to the throttling axis), which are excellent in price and workability and are very easy to install, can be used. In order to appropriately transmit the horizontal force acting on the bridge to other members under the condition that the stability of the structural analysis result is sufficiently secured, the reinforced concrete front end block having sufficient strength on the top of the bridge piercing coping, And it is also possible to prevent the mold from dropping off when an earthquake load is applied.;The method of reinforced concrete shear block construction for increasing the seismic resistance and transverse restraint of multi-span integral shear bridge using PC beam of the present invention is characterized in that a PC beam mold is installed on the upper part of the pier, In order to fix the seismic horizontal force and transverse displacement that can occur in the direction perpendicular to the throttle according to the use of the bidirectional bearing, the step of completing the shear block by using the reinforcement on the top of the bridge coping. This device and construction method do not require precise construction and high cost due to the use of conventional fixed bearings, so that it is easier to construct, and the effect of reducing the installation cost and construction period of bearings is reduced. It is a highly effective structural design and construction method that makes full use of it.
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