珠海d型伸缩缝

d型伸缩缝价格：1.00元/米 最小起订量：1 米 供货总量：1000 米 发货期限：自买家付款之日起3天内发货 有效期至：长期有效

CQF-C型桥梁伸缩缝
CQF-C type expansion joint of bridge
GQF-C型桥梁伸缩缝产品特点:建筑高度低,国产热轧整体成型异型钢材高度仅50mm,结构简单,安装方便,具有明显的可靠性,舒适性和耐久性.适用于桥面铺装层厚度等于或大于80mm,伸缩量小于等于80mm的各种桥梁,既方便旧桥梁伸缩缝更换,又可供新桥梁修建选用.由于一些伸缩缝安装不适就会产生跳车现象，不但在国内的公路桥梁上存在，在国外也尚未解决，因此，我们为了消除台阶，防止跳车，保持良好的路况，有关部门及施工单位采用了许多行之有效的措施与办法，在动难逃很大程度上减少了桥梁伸缩缝处跳车病害。其中桥梁伸缩缝的安装施工是公路桥梁建设中一项极为重要的施工项目，安装质量的好坏直接影响到行车的平稳性和舒适性、大型桥梁的服务质量及使用年限。
The GQF-C type jointless bridge features: low building height, homemade hot rolled profiled steel forming the overall height of only 50mm, has the advantages of simple structure, convenient installation, obvious reliability, comfort and durability. Suitable for pavement thickness is equal to or greater than 80mm and less than or equal to a variety of bridge expansion of 80mm, both for the convenience of the old bridge joint replacement, and can be used for the new bridge built in use. Due to the installation of discomfort will produce jumping phenomenon not only exists in the expansion joint, the domestic highway bridge, in foreign countries also have not been solved. Therefore, we in order to eliminate the step, prevent bump, keep a good road, the relevant departments and construction units by many effective measures and methods, in can largely reduce the bridge expansion joints bump. The installation and construction of the bridge expansion joint is an extremely important construction project in highway bridge construction, installation quality directly affects the quality of service and the service life of the driving stability and comfort, large bridge.
GQF-C型桥梁伸缩缝中间橡胶密封条其技术要求:采用氯丁橡胶(CR)密封橡胶带的伸缩缝适用与温度为-25℃-+60℃地区.采用天然橡胶(NR)密封橡胶带的伸缩缝装置适用于温度为-40℃-+60℃地区.
The middle rubber seal and the technical requirements of GQF-C type bridge expansion joints: the chloroprene rubber (CR) seal application and the temperature is -25 DEG -+60 DEG flexible rubber belt. The area of natural rubber (NR) sealing telescopic rubber belt joint device applicable to the temperature of -40 DEG -+60 DEG area.
公路桥梁伸缩缝是一种设置于桥梁上部结构活动端、桥面断缝处的伸缩装置。安装伸缩装置的作用是用以保证上部结构在温度变化、混凝土收缩和徐变，以及荷载作用下，在该处的变位能够实现，而不产生额外的附加内力，并能保证行车平顺。通常国内的桥梁伸缩缝都设置在上部结构的活动端和桥台，以及各联（孔）上部结构衔接处。一般公路桥在车行道和人行道上沿桥的横方向通长设置，栏杆在接缝处亦须中断以保证结构的自由变位，避免拉裂；在接缝处的桥面防水层仍应妥善铺设，防止雨水侵蚀承重结构。如采用敞口式的桥梁伸缩缝，还应考虑便于清除污物，并在缝下设置截水和引水装置，使积水排出桥外。国内的中型、大型铁路桥同理也需设伸缩缝，在道碴桥面中，应考虑防止道碴坠落缝中的措施。
The expansion joint of highway bridge is a telescopic device which is installed on the movable end of bridge superstructure and at the fracture joint of bridge deck. Install expansion device is used to ensure that the upper structure changes in temperature, shrinkage and creep of concrete, and the load can be realized in the change of position, and does not produce additional internal force and additional, can guarantee the driving comfort. Generally, the expansion joints of bridges in China are located at the movable ends and abutments of the superstructure, and the joints of the superstructure of each joint (hole). The highway bridge transverse direction of the bridge usually set in roadways and sidewalks along the railings at the seams shall be interrupted in order to ensure the structure of free deformation, avoid cracking; waterproof layer in the joint should be properly laid, to prevent the erosion of rain bearing structure. If the open type bridge expansion joint should be taken into consideration, it is easy to remove the dirt, and set up the water cut and water diversion device under the seam to make the water out of the bridge. In China, medium and large railway bridges should also be equipped with expansion joints, and measures should be taken to prevent debris fall in the ballast bridge deck.