模数式桥梁伸缩缝

GQFC型、GQFZ型、GQFL型、GQFF型、GQFMZL型模数式桥梁伸缩装置，是采用热轧整体成型的异型钢材设计的桥梁伸缩装置。GQFC型、GQFZ型、GQFF型、GQFL型伸缩装置适用于伸缩量80mm以下的桥梁接缝，GQFMZL型伸缩装置是由边梁、中梁、横梁和连动机构组成的模数式桥梁伸缩装置，适用于伸缩量80mm-1200mm的大中跨度桥梁。

GQF C type， GQF Z type， GQF L type， GQF F type and GQF MZL modulus bridge expansion device are bridge expansion devices designed by hot rolled integral shaped steel products. GQF - C bridge joint type， GQF - Z， GQF - F， GQF - L telescopic device is suitable for the expansion amount below 80mm， GQF - MZL type expansion device is a modular bridge expansion device is composed of edge beam， beam， beam and linkage mechanism， suitable for large and medium expansion 80mm-1200mm long span bridge.

2、设计制造技术条件

2. Technical conditions for design and manufacture

1、设计荷载：采用J刊公路工程技术标准规定的汽车超过20级荷载进行设计。

1， design load using J magazine 01 - highway engineering technical standard stipulated in the vehicle over 20 load to carry out the design.

2、本结构使用的异型钢材质为16Mn桥梁专用钢，钢材抗拉强度应不低于480Mpa，容许弯曲应力不低于210Mpa。

2. The special-shaped steel material used in this structure is 16Mn bridge special steel. The tensile strength of steel should not be less than 480Mpa， and the ading stress is not less than 210Mpa.

3、结构中支承横梁使用16Mn或45号钢，其容许弯曲应力不低于210Mpa。

3. 16Mn or No. 45 steel is used in the supporting beam in the structure， and the ading stress is not less than 210Mpa.

4、其余配件钢材可使用不低于Q235强度钢材。

4， the rest of the fittings steel can be used not less than Q235 strength steel.

3、胶料适用范围

3. The scope of application of rubber

1、采用氯丁橡胶（C日）的伸缩装置适用于温度为25+60地区。

1. The telescopic device used for chloroprene rubber （C day） is suitable for the temperature range of - 25 - C - +60 C.

2、采用天然橡胶（N日）的伸缩装置适用于温度为40+60地区。

2. The expansion device of natural rubber （N day） is suitable for the temperature range of - 40 C to +60 C.

4、结构特点

4. Structure characteristics

GQFMZL型伸缩装置的突出特点是将伸缩装置的承重结构和位移控制系统分开，二者受力时互不干扰，分工明确，这样既保证受力时安全，又保证了受力时位移均匀。

The prominent feature of the GQF MZL expansion device is to separate the load bearing structure and the displacement control system of the telescopic device. The two forces are not interfered with each other， and the division of labor is clear. This ensures the safety of the force while ensuring the even displacement of the load.

5、伸缩装置伸缩量的确定

5. Determination of expansion capacity of telescopic device

桥梁伸缩量计算值直接影响对伸缩装置规格选择，若伸缩装置规格选择不合理，就直接影响伸缩装置的使用效果，同时选择伸缩装置时还应考虑梁、板间伸缩装置间隙量大小，以保证伸缩装置与梁、板两端有充分锚固，才能达到佳使用效果。所以在选择伸缩装置的规格时，一定要留足够余量，才能保证伸缩装置的使用效果和耐久性。

The value of direct influence on the choice of expansion device specification calculation of bridge expansion volume， if the expansion device specification selection is not reasonable， it directly affects the use effect of expansion device at the same time， expansion device should be taken into consideration when the beam and plate expansion device gap size， to ensure the expansion device has sufficient anchorage and beam， both ends of the board， in order to achieve the best use effect. So when choosing the size of the telescopic device， we must leave enough allowance to ensure the use and durability of the telescopic device.

6、桥梁设计单位在选择了我公司的伸缩装置后，为便于加工制作，应提供下列资料

6， the bridge design unit should provide the following information for the convenience of processing and production after the selection of the expansion unit of our company.

1、桥梁的横断面图（包括横坡、人行道、安全带、栏杆的位置及尺寸）o

1. The cross section of the bridge （including the horizontal slope， the sidewalk， the seat belt， the position and size of the railing） o

2、伸缩装置的施工实施时间及安装时温度的变化幅度。

2. The construction time of the telescopic device and the change range of the temperature at the time of installation.

3、用户有特殊要求应明确注明。

3， the special requirements of the user should be clearly stated.

注：如用户不提供定位值，则工厂一律按产品的额定大伸缩量压缩一半定位出厂。

Note if the user does not provide the positioning value， the factory will be compressed by half of the rated maximum expansion of the product.