GQF-Z伸缩缝装置多少钱    咨询电话：131 6657 0832

Selection of expansion joints, specifications, size, expansion joints specifications, size and service life is very large, in the design should consider sufficient expansion allowance. When the bridge displacement direction and the center line of the orthogonal expansion joints, expansion joints selection specification is relatively easy, but the direction and displacement of bridge expansion joint center oblique, must be decomposed into parallel and perpendicular to the center line of the two vectors, the expansion joint specification depends on two vector one. With the vector parallel seam: Delta Lp= and delta s beta; vector joint vertical: Delta Lr= Delta Lr.sin beta type: said the total deformation of bridge displacement; displacement direction and direction of the joint angle beta =45 to 135 DEG Lr Eve joy is the selection of expansion joint specification, the deformation is generally composed of delta Lp rubber sealing strip moving old wrong level, without too much influence on the expansion joint.

Example: the design of bridge structure displacement along the center line of the 95mm, with its 40 degree oblique joints, calculated according to the formula of delta Lr=73mm, Delta Lp=61mm used this type of telescopic seam is applicable. At the same time pay attention to the tape to the middle of the quasi, the largest horizontal dislocation in the two directions should not be more than 40mm, such as the calculation found excessive excessive movement, we must choose a larger size of expansion joints. Design, such as with sidewalks, anti-collision wall structure, we must design angle, size data available to our factory, so as to facilitate the factory according to the design requirements of the whole manufacturing.

GQF-Z伸缩缝装置多少钱    咨询电话：131 6657 0832

大位移模数式伸缩缝是我国90年代推向市场的升级换代产品，以国产热轧异型钢材和密封橡胶带为主要材料装配而成。其结构合理使用寿命长，安装养护方便，优于板式橡胶缝。大位移模数式伸缩装置分为两种型式：单组式伸缩缝与多组式伸缩缝。单组式伸缩缝由型钢、锚固构件和密封橡胶带组成，允许位移量为0~120mm，主要型式有：GQF-C-40，60,80型、QMF（SSF）-80型、SD-80、100、120型等,产品适用于大流量交通地段的公路、城市桥梁、高架道路与立交工程。

GQF-C型单组式桥梁伸缩缝

GQF-C型伸缩缝是中交公路规划设计院设计的一种新颖桥梁伸缩装置，产品适用于大流量交通地段的公路、城市桥梁、高架道路与立交工程。GQF-C型伸缩缝由一条整长的橡胶密封条，一组刚质边梁及锚固件组成。钢质边梁内侧带有能固定橡胶密封条的沟槽。焊固在钢梁外侧的锚固件，与梁端预埋钢筋相焊接，浇筑高强度混凝土过渡后，同梁体连接可靠，具有与桥面接合平顺，密封止水、伸缩灵活，行车平稳，使用寿命长的特点。使用于伸缩量0～80mm的桥梁。

单组式伸缩缝主要材料：钢质边梁：采用16Mn的钢轧制，部面呈c形。橡胶密封条：采用氯丁橡胶制造，具有良好的耐老化、耐挠性能。

固锚件：有锚栓、锚环、锚板结构三种，设计工程师可根据桥面板设计厚度选用，间距一般为20cm，本厂也可根据设计工程师特定设计制造。

选定伸缩缝规格尺寸选定伸缩缝的规格尺寸与使用寿命关系很大，在设计时应考虑足够的伸缩富余量。当桥梁位移方向与伸缩缝中心线正交时，选用伸缩缝规格比较容易，但桥梁位移方向与伸缩缝中心斜交时，须分解成平行与垂直于中心线的两个矢量，选用伸缩缝规格取决于两个矢量当中的一个。与接缝平行的矢量：△Lp=△sβ；与接缝垂直的矢量：△Lr=△Lr.sinβ式中：表示桥梁位移的总变形量；为位移方向与接缝方向的交角β=45゜∽135°△Lr是选用伸缩缝规格的依据，△Lp的变形一般由橡胶密封条的水平错动老完成，对伸缩缝的选用无太大的影响。

例：设计桥梁沿结构中心线位移95mm，伸缩缝与其斜交40°，按公式计算△Lr=73mm,△Lp=61mm选用本型号的伸缩缝是适用的。同时要注意，胶条以中部为准，水平错动量在前后两个方向都是不应超过40mm，如计算中发现有过量错动，须选用更大规格的伸缩缝。设计时，如带有人行道，防撞墙结构的，必须将设计角度，尺寸数据提供给本厂，便于工厂按设计要求整体制造。

单组式桥梁伸缩缝安装前现场准备

GQF-C型伸缩缝是在本厂制造并组装，若整条伸缩缝超长不能运输或工程需分段施工，需在现场焊接一体后，再组装橡胶密封条。

（1）伸缩缝预留槽口、在浇筑拟安装伸缩缝的梁体、桥台时，在端部预留符合安装尺寸的槽口、推荐尺寸见表1。表1单位mm固锚件型式槽口宽度（b）槽口深度（h）锚栓≥35080∽120锚环≥35080∽120锚板≥350≥150注：特殊设计另定

（2）预埋钢筋设置：在浇筑梁体或桥台时，应设置预埋钢筋。预埋深度不小于50cm，并与梁体、桥台内结构钢筋连接一体；间距尺寸为20cm应和伸缩缝锚固件保持一致。

（3）梁端间隙应不小于梁体伸长度，在预制、现浇或吊装时由设计工程师根据当地气温确定。

（4）调节伸缩缝定位尺寸“J”，根据安装时气温计算正确，调节后，琐紧定位压板。

（5）用发泡塑料板嵌入梁端间隙内，其上部与伸缩缝钢梁内侧密合，尽量达到密封，防止浇筑混凝土时出现漏浆、空洞。

单组式桥梁伸缩缝安装

（1）伸缩缝吊装就位，检查其中线线与梁缝中心线是否重合，其顶面与路面标高是否一致，及时进行调整。

（2）将预娩钢筋和伸缩缝锚固件焊接牢固，再横穿12或16水平钢筋。

GQF-Z伸缩缝装置多少钱    咨询电话：131 6657 0832

Large displacement modulus expansion joint is a product of upgrading to the market in 90s. It is made of domestic hot-rolled special-shaped steel and sealing rubber belt as the main material. The utility model has the advantages of reasonable structure, long service life and convenient installation and maintenance, and is superior to the rubber suture of the plate type. The large displacement modular expansion device is divided into two types: single group expansion joint and multi group expansion joint. Composed of steel anchor member and a sealing rubber belt joint single group expansion, allowing the displacement of 0~120mm, the main types are: GQF-C-40, 60,80, QMF (SSF) -80, SD-80, 100, 120. The product is suitable for heavy traffic area of the city roads, bridges, elevated road and overpass engineering.

GQF-C type single deck expansion joint of bridge

GQF-C expansion joint is a new type of bridge expansion device designed by the planning and Design Institute of China Central highway. The product is suitable for highway, urban bridge, elevated road and interchange project in large traffic volume. The GQF-C expansion joint consists of a full length rubber seal, a set of rigid beams and anchors. The inner side of the steel edge beam is provided with a groove capable of fixing the rubber sealing strip. Welded on the outside of the anchor beam, and beam end embedded steel welding, casting of high strength concrete beams after the transition, with reliable connection, with the deck water sealing, smooth engagement, scalable and flexible, stable running, long service life. Used in expansion of 0 to 80mm bridge.

A single group type expansion joint material: steel edge beam with steel rolling 16Mn, the Ministry is C. Rubber sealing strip: made of chloroprene rubber, it has good aging resistance and scratch resistance.

Solid anchor: there are anchor, anchor ring, anchor plate structure of three kinds, the design engineer can according to the bridge panel design thickness selection, the distance is generally 20cm, the factory can also be designed according to the design engineer specific design.

GQF-Z伸缩缝装置多少钱    咨询电话：131 6657 0832