GQF80型橋梁伸縮縫廠家@吉林
橋梁伸縮縫:指的是為滿足橋面變形的要求，通常在兩梁端之間、梁端與橋臺之間或橋梁的鉸接位置上設置伸縮縫。要求伸縮縫在平行、垂直于橋梁軸線的兩個方向，均能自由伸縮，牢固可靠，車輛行駛過時應平順、無突跳與噪聲;要能防止雨水和垃圾泥土滲入阻塞;安裝、檢查、養護、消除污物都要簡易方便。 在設置伸縮縫處，欄桿與橋面鋪裝都要斷開。
Bridge expansion joints: to meet the requirements of bridge deck deformation, the expansion joint is usually installed between the two beam ends, between the Liang Duan and abutment or the hinge position of the bridge. Requirements of expansion joints in two directions parallel and perpendicular to the axis of the bridge, can free expansion, firm and reliable, the vehicle had to be smooth, no sudden jump and noise; to prevent rainwater and waste soil infiltration obstruction; installation, inspection, maintenance, eliminate dirt to be simple. At the expansion joint, the railing and the bridge deck should be disconnected.
橋梁伸縮縫的作用:在于調節由車輛荷載和橋梁建筑材料所引起的上部結構之間的位移和聯結。斜交橋的伸縮裝置一旦被破壞，將嚴重影響行車的速度、舒適性與安全，甚至造成行車安全事故。
The role of bridge expansion joints is to adjust the displacement and connection between the superstructure caused by the vehicle load and the bridge building materials. Once the escopic device of the skew bridge is damaged, it will seriously affect the speed, comfort and safety of the train, and even cause traffic accidents.
伸縮縫按照性能及安裝方法可以分為:GQF-C型、GQF-Z型、GQF-L型、GQF-F型。
According to the performance and installation method, the expansion joint can be divided into GQF-C, GQF-Z, GQF-L and GQF-F types.
其中GQF-MZL型數模式橋梁伸縮縫裝置，是采用熱軋整體成型的異型鋼材設計的橋梁伸縮縫裝置。GQF-C型、GQF-Z型、GQF-L型、GQF-F型伸縮縫裝置適用于伸縮量80mm以下的的橋梁接縫，GQF-MZL型伸縮縫裝置是由邊梁、中梁、橫梁和連動機構組成的模數式橋梁伸縮縫裝置，適用于伸縮量80mm-1200mm的大中跨度橋梁。
The bridge expansion joint device of GQF-MZL number model is a bridge expansion joint device which is made of hot-rolled profiled steel. GQF-C type, GQF-Z type, GQF-L type, GQF-F type jointless bridge joint device is suitable for the expansion of the following 80mm, GQF-MZL type expansion joint device is composed of modular bridge expansion edge beam, beam, beam and linkage mechanism joint device, suitable for large and medium span bridge expansion 80mm-1200mm.
GQF-C型橋梁伸縮裝置特點:
Characteristics of GQF-C type bridge expansion device:
GQF-C型橋梁伸縮裝置采用整體熱軋16Mn異型鋼,克服了擠壓異型鋼直線度和集合尺寸不均勻的特點, 建筑高度低，國產熱軋整體成型異型鋼材高度僅50mm，結構簡單，安裝方便，具有明顯的可靠性、舒適性和耐久性。既方便舊伸縮裝置更換，又可供新橋時選用。
Type GQF-C bridge expansion device adopts whole hot rolled 16Mn shaped steel, overcome the extrusion special-shaped steel straightness and set size uneven, low building height, homemade hot rolled profiled steel forming the overall height of only 50mm, has the advantages of simple structure, convenient installation, with comfort and durability, reliability obvious. It is convenient to replace the old escopic device and can be used for the new bridge.
GQF-MZL型橋梁伸縮裝置特點:
Characteristics of GQF-MZL type bridge expansion device:
MZL型伸縮裝置結構突出的特點是:由邊梁、中梁、橫梁、位移控制系統、密封橡膠帶等構件組成的系列伸縮裝置。該伸縮裝置的承重結構和位移控制系統分開，二者受力時互不干擾，分工明確，這樣既保證受力時安全，又能達到位移均勻，使所有中梁在一個位移控制箱內均支承在同一根垂直橫梁上的傳統作法，這樣對大位移量伸縮裝置非常有利，減少了橫梁數量，使位移控制箱體積減小到zui小范圍，節約了鋼材。
The structure of MZL escopic device is characterized by: a series of escopic devices consisting of side beam, middle beam, crossbeam, displacement control system, sealing rubber belt and other components. Apart from the expansion device of bearing structure and displacement control system, the two forces do not interfere with each other, a clear division of labor, so as to ensure the safety of the force, and can achieve the uniform displacement, so that all beams in a displacement control box are supported on the same vertical beam of the traditional method, so on large displacement expansion device is very favorable, reducing the number of beams, the displacement of the control box volume is reduced to the minimum, saving steel.
該結構還克服了斜向支承式伸縮裝置要求加工和組裝精度相當高的苛刻條件，否則四連桿結構極易出現自鎖現象，影響伸縮自由和不易保證位移均勻的弊病。該結構各連接處均采用既能轉動又能滑動結構。所以，對彎、坡、斜、寬橋梁適應能力強，可滿足各種橋梁結構使用要求。
The structure also overcomes the harsh conditions of the oblique supporting type escopic device requires machining and assembly precision is very high, otherwise the four connecting rod structure prone to self-locking phenomenon, affect the expansion of freedom and is not easy to ensure uniform displacement of ills. All the joints of the structure are both rotational and sliding structures. Therefore, the bridge has strong adaptability to curved, sloping, inclined and wide bridges, which can meet the requirements of various bridge structures.
