Novel steel-concrete combined beam bridge shearing force connecting piece: Fid-Bau Portal

Novel steel-concrete combined beam bridge shearing force connecting piece

WANG ZONGREN / LV HAIJUN / WANG ZUOXIN / TANG LIANG / LI RUNPENG / JIAN YONG / ZHAI XIAOLIANG / HUANG BO

The invention relates to a novel steel-concrete combined beam bridge shearing force connecting piece which comprises a symmetrical corrugated plate, the symmetrical corrugated plate is made of memory alloy, the symmetrical corrugated plate is provided with a bottom plate and webs connected with the bottom plate, the webs are symmetrically arranged about the center line of the bottom plate, and web holes are formed in the two symmetrical webs; hooks are arranged at the ends of the symmetrical corrugated plates, and high-strength bolt holes are formed in the bottom plate. The deformed steel bars penetrate through the web plate holes in the height direction to connect the plurality of symmetrical corrugated plates in series; and the high-strength bolts are arranged in the high-strength bolt holes in a penetrating manner, so that the symmetrical corrugated plate pieces are connected with the steel beam sections. The shearing force connecting piece is good in anti-shearing connecting effect and excellent in structural fatigue performance. The symmetrical corrugated plates made of the memory alloy can have certain recovery capacity under the action of traffic loads and can absorb part of load stress.

本申请涉及一种新型钢‑混结合梁桥剪力连接件，包括：对称波折板件，对称波折板件由记忆合金制成，对称波折板件具有底板以及与底板相连接的腹板，其中腹板以底板的中心线对称设置，两对称的腹板上设置腹板开孔；对称波折板件端部设有弯钩，底板上设置有高强螺栓孔；变形钢筋，变形钢筋沿高度方向穿过腹板开孔，将多个对称波折板件串联；高强螺栓，高强螺栓穿设于高强螺栓孔，实现对称波折板件与钢梁段的连接。剪力连接件的抗剪连接效果好，结构疲劳性能优越。记忆合金制成的对称波折板件能够在交通荷载作用下具备一定的恢复能力，能够吸收部分荷载应力。

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