A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-Poisson-ratio elastomer, seamless telescopic device and construction technology
The invention relates to the technical field of bridge expansion joint engineering, in particular to a low-Poisson-ratio elastomer, a seamless expansion device and a construction technology.The low-Poisson-ratio elastomer comprises, by weight, 70%-80% of a negative Poisson-ratio unit and 20%-30% of a high-toughness resin cementing material.The low-Poisson-ratio elastomer is tested to have the Poisson ratio of 0-0.01 and the hardness of 60-70 IRHD; and the tensile modulus at definite elongation is less than or equal to 2Mpa, and the bonding tensile strength with a steel plate is more than or equal to 2.5 Mpa. The low-Poisson-ratio elastomer is formed by mixing the negative-Poisson-ratio unit and the high-toughness resin cementing material, so that the low Poisson ratio of the expansion joint resin elastomer material is realized; the problem that the surface flatness of the device is changed due to the fact that the size of the resin elastomer is not changed under the condition that the resin elastomer is stretched and compressed is solved, and under the same width, the low-Poisson-ratio elastomer can meet the larger telescopic deformation amount.
本发明涉及桥梁伸缩缝工程技术领域，尤其涉及一种低泊松比弹性体、无缝式伸缩装置及施工工艺，其中，低泊松比弹性体按照重量分数计算，包括：70%～80% 负泊松比单元和20%～30% 高韧树脂胶结料，经过测试，低泊松比弹性体的泊松比为0～0.01，硬度为60～70IRHD，定伸弹性模量≤2Mpa，与钢板的粘结拉伸强度≥2.5Mpa，本发明采用负泊松比单元与高韧树脂胶结料拌合形成低泊松比弹性体，实现伸缩缝树脂弹性体材料的低泊松比化，解决了树脂弹性体在受到拉伸和压缩的情况下体积不变引起的装置表面平整度变化问题，在相同宽度下，低泊松比弹性体能够满足更大的伸缩变形量。
Low-Poisson-ratio elastomer, seamless telescopic device and construction technology
The invention relates to the technical field of bridge expansion joint engineering, in particular to a low-Poisson-ratio elastomer, a seamless expansion device and a construction technology.The low-Poisson-ratio elastomer comprises, by weight, 70%-80% of a negative Poisson-ratio unit and 20%-30% of a high-toughness resin cementing material.The low-Poisson-ratio elastomer is tested to have the Poisson ratio of 0-0.01 and the hardness of 60-70 IRHD; and the tensile modulus at definite elongation is less than or equal to 2Mpa, and the bonding tensile strength with a steel plate is more than or equal to 2.5 Mpa. The low-Poisson-ratio elastomer is formed by mixing the negative-Poisson-ratio unit and the high-toughness resin cementing material, so that the low Poisson ratio of the expansion joint resin elastomer material is realized; the problem that the surface flatness of the device is changed due to the fact that the size of the resin elastomer is not changed under the condition that the resin elastomer is stretched and compressed is solved, and under the same width, the low-Poisson-ratio elastomer can meet the larger telescopic deformation amount.
本发明涉及桥梁伸缩缝工程技术领域，尤其涉及一种低泊松比弹性体、无缝式伸缩装置及施工工艺，其中，低泊松比弹性体按照重量分数计算，包括：70%～80% 负泊松比单元和20%～30% 高韧树脂胶结料，经过测试，低泊松比弹性体的泊松比为0～0.01，硬度为60～70IRHD，定伸弹性模量≤2Mpa，与钢板的粘结拉伸强度≥2.5Mpa，本发明采用负泊松比单元与高韧树脂胶结料拌合形成低泊松比弹性体，实现伸缩缝树脂弹性体材料的低泊松比化，解决了树脂弹性体在受到拉伸和压缩的情况下体积不变引起的装置表面平整度变化问题，在相同宽度下，低泊松比弹性体能够满足更大的伸缩变形量。
Low-Poisson-ratio elastomer, seamless telescopic device and construction technology
一种低泊松比弹性体、无缝式伸缩装置及施工工艺
ZHANG ZHIXIANG (author) / ZHANG HUI (author) / ZHAO MENGLONG (author) / PAN YOUQIANG (author) / LI QINGXIANG (author)
2023-06-09
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
LOW-POISSON'S-RATIO ELASTOMER, SEAMLESS EXPANSION DEVICE, AND CONSTRUCTION PROCESS
| European Patent Office | 2024
Bridge seamless telescopic device and construction method of device
| European Patent Office | 2015