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A platform for research: civil engineering, architecture and urbanism
Anti-debonding forming method of concrete filled steel tube arch ribs
When arch ribs are erected, a plurality of expanders are arranged in steel pipes of the arch ribs along the axes of the arch ribs; after concrete is injected into the arch ribs in a pressing mode, the expanders are expanded, an enlarged space is generated in the concrete, the concrete pressure in the arch rib sections is increased, and the steel pipes are subjected to tensile force in the circumferential direction all the time until the concrete is finally set; and then solidifiable grout is poured into the expanders, so that the expanders become a bearable part in the concrete, and forming construction of the arch ribs is completed. According to the method, disengaging and debonding between the concrete in the arch ribs and the steel pipe wall can be avoided, the added materials and cost are low, and operation is easy and efficient.
在架设拱肋时，沿拱肋的轴线在拱肋的钢管内设置多个扩张器。在拱肋内压注混凝土后，使扩张器扩张，在混凝土内产生一个增大的空间，增加拱肋段内的混凝土压强，并使钢管环向受到拉力，且一直维持到混凝土终凝后。再向扩张器内部灌注可凝固的浆液，使扩张器成为混凝土内可承载的部分，完成拱肋的成型施工。该方法可避免拱肋内混凝土与钢管壁间的脱空和脱粘，且增加的材料和费用低，操作简单高效。
Anti-debonding forming method of concrete filled steel tube arch ribs
When arch ribs are erected, a plurality of expanders are arranged in steel pipes of the arch ribs along the axes of the arch ribs; after concrete is injected into the arch ribs in a pressing mode, the expanders are expanded, an enlarged space is generated in the concrete, the concrete pressure in the arch rib sections is increased, and the steel pipes are subjected to tensile force in the circumferential direction all the time until the concrete is finally set; and then solidifiable grout is poured into the expanders, so that the expanders become a bearable part in the concrete, and forming construction of the arch ribs is completed. According to the method, disengaging and debonding between the concrete in the arch ribs and the steel pipe wall can be avoided, the added materials and cost are low, and operation is easy and efficient.
在架设拱肋时，沿拱肋的轴线在拱肋的钢管内设置多个扩张器。在拱肋内压注混凝土后，使扩张器扩张，在混凝土内产生一个增大的空间，增加拱肋段内的混凝土压强，并使钢管环向受到拉力，且一直维持到混凝土终凝后。再向扩张器内部灌注可凝固的浆液，使扩张器成为混凝土内可承载的部分，完成拱肋的成型施工。该方法可避免拱肋内混凝土与钢管壁间的脱空和脱粘，且增加的材料和费用低，操作简单高效。
Anti-debonding forming method of concrete filled steel tube arch ribs
一种钢管混凝土拱肋的防脱粘成型方法
CUI ZHENJIANG (author) / WEI JIANDONG (author) / WANG JUNLIN (author)
2021-10-15
Patent
Electronic Resource
Chinese
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