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Prefabricated concrete member for guardrail transformation and guardrail transformation method
The invention discloses a prefabricated concrete member for guardrail transformation and a guardrail transformation method, Aiming at a combined bridge guardrail with a New Jersey slope or an F-shaped slope, the invention adopts a prefabricated concrete member to replace a steel pipe structure of the combined bridge guardrail. The prefabricated concrete member is a reinforced concrete type precast slab, so that the protection grade of the guardrail can be improved. A positioning installation structure adopts vertical through holes and shearing bolt holes arranged at intervals inside and outside, bending-resistant bolts are arranged in the vertical through holes, and shearing bolts are arranged in the shearing bolt holes, so that a staggered anchoring structure in a parallel triangular trend is formed, and automobile collision loads at various angles can be borne. Meanwhile, the left side and the right side of each slab body are each provided with half of the positioning installation structure, so that when the two slab bodies are in butt joint, and a complete positioning installation structure can be formed. Thin-wall square pipe connecting pieces are arranged in a mounting grooves, the multiple slab bodies are connected, and the overall shear resistance of the guardrail is improved.
一种用于护栏改造的预制混凝土构件及护栏改造方法，针对新泽西坡面或F型坡面的组合式桥梁护栏，提出采用预制混凝土构件代替其钢管结构，预制混凝土构件为钢筋混凝土式预制板，能够提高护栏的防护等级，且其定位安装结构采用内外间隔布置的竖直通孔和抗剪螺栓孔，在竖直通孔内设置抗弯螺栓，在抗剪螺栓孔内设置抗剪螺栓，形成并列三角形走向的交错排列锚固结构，可以承受多种角度下的汽车碰撞荷载。同时板体的左右两侧各设有一半的所述定位安装结构，使得两个所述板体对接时，能够形成一个完整的所述定位安装结构，通过在安装槽内设置薄壁方管连接件，将多个板体进行连接，提高护栏的整体抗剪能力。
Prefabricated concrete member for guardrail transformation and guardrail transformation method
The invention discloses a prefabricated concrete member for guardrail transformation and a guardrail transformation method, Aiming at a combined bridge guardrail with a New Jersey slope or an F-shaped slope, the invention adopts a prefabricated concrete member to replace a steel pipe structure of the combined bridge guardrail. The prefabricated concrete member is a reinforced concrete type precast slab, so that the protection grade of the guardrail can be improved. A positioning installation structure adopts vertical through holes and shearing bolt holes arranged at intervals inside and outside, bending-resistant bolts are arranged in the vertical through holes, and shearing bolts are arranged in the shearing bolt holes, so that a staggered anchoring structure in a parallel triangular trend is formed, and automobile collision loads at various angles can be borne. Meanwhile, the left side and the right side of each slab body are each provided with half of the positioning installation structure, so that when the two slab bodies are in butt joint, and a complete positioning installation structure can be formed. Thin-wall square pipe connecting pieces are arranged in a mounting grooves, the multiple slab bodies are connected, and the overall shear resistance of the guardrail is improved.
一种用于护栏改造的预制混凝土构件及护栏改造方法，针对新泽西坡面或F型坡面的组合式桥梁护栏，提出采用预制混凝土构件代替其钢管结构，预制混凝土构件为钢筋混凝土式预制板，能够提高护栏的防护等级，且其定位安装结构采用内外间隔布置的竖直通孔和抗剪螺栓孔，在竖直通孔内设置抗弯螺栓，在抗剪螺栓孔内设置抗剪螺栓，形成并列三角形走向的交错排列锚固结构，可以承受多种角度下的汽车碰撞荷载。同时板体的左右两侧各设有一半的所述定位安装结构，使得两个所述板体对接时，能够形成一个完整的所述定位安装结构，通过在安装槽内设置薄壁方管连接件，将多个板体进行连接，提高护栏的整体抗剪能力。
Prefabricated concrete member for guardrail transformation and guardrail transformation method
一种用于护栏改造的预制混凝土构件及护栏改造方法
LIANG YAPING (author) / JING KUN (author) / MA LIANG (author) / HE ZHI'ANG (author) / ZHANG XIANG (author)
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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