The utility model discloses a unit assembling noise reduction telescopic device, which belongs to the technical field of bridges. The utility model solves the problem that the welding connection between the tooth plate and the steel of the telescopic device of the existing technology in the existing technology is easy to be fatigue and damaged under the long-term live load, resulting in the safety of the weld crack and the problem that the rubber strip can not be repaired and replaced. The utility model includes a toothed plate mounted on both sides of the beam body, and the toothed plates on both sides of the beam are interlaced with each other, and a expansion joint is formed between the teeth of the two strip steel plates, which is characterized in that the underneath of the steel plate is provided with a cushion plate, and between the two pads, two special-shaped steel and two special-shaped steels are connected. There is a waterproof adhesive strip below the expansion joint between the two tooth teeth, and the backing plate and the profiled steel are connected with the toothed steel plate through the U bolt. The vehicle of the telescopic device of the utility model can be smooth and transition, and the noise produced is small. At the same time, it has the characteristics of disassembling the steel plate with tooth and quick and convenient replacement of the waterproof adhesive strip according to the unit. One
【技术实现步骤摘要】
一种单元装配式减噪伸缩装置
本技术属于桥梁
,具体涉及一种单元装配式减噪伸缩装置。
技术介绍
目前,国内外桥梁用的伸缩装置主要有模数式(含单缝)、梳齿板式、无缝式等几类。这几种装置具有如下特点:模数式伸缩装置是一种主流产品,采用型钢制造,型钢间留缝适应位移,型钢表面形成车轮支承面,适用于各种位移量的桥梁。缺点是车辆通过缝隙时,会产生冲击和较大的噪声,行车舒适性差,噪音污染大。梳齿板式伸缩装置采用一对相互咬合梳型齿板形成支承面和位移缝,相对车轮而言,行车方向上连续过渡,车辆通过产生的冲击小、噪声低,行车舒适。缺点是车轮快速通过、脱离梳齿板后,齿板惯性反跳,连接部件易疲劳导致松动、脱落或损坏,影响行车安全。无缝式伸缩缝主要采用弹性材料做变形体填充缝隙,与路面形成无缝整体路面,冲击小、噪声低,行车舒适。缺点是材料要求高,弹性体寿命短,变形量小,仅能适用于很小跨径的桥梁。近年来,国内外科研机构和制造企业充分结合模数式和梳齿板式的优点,开发了一系列的减噪伸缩装置,其核心是在模数式型钢表面上固定梳型齿板结构,这样既有模数式结构简单、锚固可靠、无翘齿的优点,同时具备梳齿板伸缩装置行车平稳、噪音低的优点,因此一段时间在桥梁、特别是在城市桥梁中得到了广泛的运用。但这种伸缩装置也存在两个主要问题,一是齿板与型钢的连接螺栓或焊接,在长期活载作用下易疲劳破坏,造成螺栓脱落或焊缝开裂影响行车安全,二是橡胶条无法进行维修、更换。总结:模数式伸缩装置占中国市场大部分市场,是国内的主流产品,适用于各种位移量的桥梁,车辆通过伸缩装置会产生的较大的噪音,影响城市环境;梳齿板式伸缩装置是 ...
【技术保护点】
1.一种单元装配式减噪伸缩装置,包括安装在梁体两侧的带齿钢板(1),梁体上两侧的
【技术特征摘要】
1.一种单元装配式减噪伸缩装置,包括安装在梁体两侧的带齿钢板(1),梁体上两侧的带齿钢板(1)的梳齿相互交错,两带齿钢板(1)的梳齿之间形成伸缩缝,其特征在于,所述带齿钢板(1)的下方均设置有垫板(2),两垫板(2)之间设置有两块异型钢(5),两块异型钢(5)之间连接有位于两带齿钢板(1)梳齿之间的伸缩缝下方的防水胶条(6),垫板(2)和异型钢(5)通过U型螺栓(8)与带齿钢板(1)连接;所述垫板(2)和异型钢(5)通过锚板(3)和锚环(4)与梁体...
【专利技术属性】
技术研发人员:伍大同,罗启,刘军锋,张春,罗静科,龚远,
申请(专利权)人:成都市大通路桥机械有限公司,
类型:新型
国别省市:四川,51
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。