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Double-truss steel-concrete combined conversion reinforcing truss
The invention relates to a double-truss steel-concrete combined conversion reinforcing truss which comprises a steel member and an upper chord member formed after the section of an existing concrete beam is increased, and the steel member comprises a double-truss steel lower chord member, a double-truss steel diagonal web member, a double-truss steel straight web member, an upper chord member embedded part and a lower chord member connecting part which are arranged below the upper chord member. All the steel members are connected in an equal-strength butt welding mode, and the steel members at the two ends of the truss are connected with existing concrete frame columns with enlarged sections and additionally provided with connecting plates. Compared with the prior art, secondary stress and secondary deformation caused by unloading and load redistribution in the column extraction transformation process can be reduced or eliminated, new and old materials and components are easier to act together, deformation is easier to cooperate, rigidity and strength are greatly enhanced, the reinforcing effect is more obvious, construction operation is easier to achieve, and construction monitoring reliability is high; and the engineering quality is easier to guarantee.
本发明涉及一种双榀钢‑混凝土组合转换加固桁架，包括钢构件以及由既有混凝土梁增大截面后形成的上弦杆，钢构件包括设置于上弦杆下方的双榀钢下弦杆、双榀钢斜腹杆和双榀钢直腹杆、上弦杆预埋件以及下弦杆连接件，所有钢构件之间采用等强对接焊接连接，且桁架两端处的钢构件与增大截面并增设连接板的既有混凝土框架柱连接。与现有技术相比，本发明能够减少或消除抽柱改造过程中的卸载、荷载重新分配引起的二次应力和二次变形，新旧材料和构件更易共同作用，变形更易协同，刚度和强度大大增强，加固效果更加明显，施工操作更易实现，施工监测可靠性高，工程质量更易保证。
Double-truss steel-concrete combined conversion reinforcing truss
The invention relates to a double-truss steel-concrete combined conversion reinforcing truss which comprises a steel member and an upper chord member formed after the section of an existing concrete beam is increased, and the steel member comprises a double-truss steel lower chord member, a double-truss steel diagonal web member, a double-truss steel straight web member, an upper chord member embedded part and a lower chord member connecting part which are arranged below the upper chord member. All the steel members are connected in an equal-strength butt welding mode, and the steel members at the two ends of the truss are connected with existing concrete frame columns with enlarged sections and additionally provided with connecting plates. Compared with the prior art, secondary stress and secondary deformation caused by unloading and load redistribution in the column extraction transformation process can be reduced or eliminated, new and old materials and components are easier to act together, deformation is easier to cooperate, rigidity and strength are greatly enhanced, the reinforcing effect is more obvious, construction operation is easier to achieve, and construction monitoring reliability is high; and the engineering quality is easier to guarantee.
本发明涉及一种双榀钢‑混凝土组合转换加固桁架，包括钢构件以及由既有混凝土梁增大截面后形成的上弦杆，钢构件包括设置于上弦杆下方的双榀钢下弦杆、双榀钢斜腹杆和双榀钢直腹杆、上弦杆预埋件以及下弦杆连接件，所有钢构件之间采用等强对接焊接连接，且桁架两端处的钢构件与增大截面并增设连接板的既有混凝土框架柱连接。与现有技术相比，本发明能够减少或消除抽柱改造过程中的卸载、荷载重新分配引起的二次应力和二次变形，新旧材料和构件更易共同作用，变形更易协同，刚度和强度大大增强，加固效果更加明显，施工操作更易实现，施工监测可靠性高，工程质量更易保证。
Double-truss steel-concrete combined conversion reinforcing truss
一种双榀钢-混凝土组合转换加固桁架
HUANG BINHUI (author) / QIANG GUOPING (author) / SONG XUEYAN (author) / LUO JINHUA (author) / WANG MINGHUI (author)
2022-07-01
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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