gqff40型伸缩缝伸缩缝生产厂家单向轴承

gqf-f40型伸缩缝 伸缩缝生产厂家

gqf-f40型伸缩缝 伸缩缝生产厂家2017-12-22 14:59核心提示： the size of the components is small, the amount of the corresponding materials is saved（一）C型桥梁伸缩缝标点法 (1) C type bridge expansion joint punctuation method 单向测缝标点法，就是在伸缩缝两侧的混凝土体上各埋设一段角钢，角钠轴线勺伸缩缝平行，一肢向上，另一肢用螺栓固定在双凝土上，向上的肢侧各焊一半圆形的标点。进行伸缩缝宽度的观测时，用游标卡尺测量两标点之间距离，即可得出仲缩缝宽度的变化值。 One way seam punctuation method is to lay a section of angle steel on the concrete body on both sides of the expansion joint, parallel to the expansion joint of the angle sodium axis spoon, one limb up, the other limb fixed on the double soil with bolts, and half the circular punctuation on the upper side. When measuring the width of the expansion joint, the distance between the two punctuation points is measured with the vernier caliper, and the variation of the width of the secondary seams can be obtained. （二）型板式三向测缝标点法 (two) plate type three direction slots punctuation 型板式三向侧缝标点法用于观测仲缩缝的外合、错动和高差三个方向的变化值。它是用螺栓埋没在伸缩缝两侧混凝土上的两块弯曲成相互垂直的成型铁板，型板宽约30cm，厚5~7mm，在型板上焊三对不锈钢或铜质的标点。观测时，用外径游标卡尺分别测量三个方向上三对不锈钢(或铜质)质的三棱柱条之间的距离，可得出该段伸缩缝沿三个方向的相对位移位。 The three direction side seam punctuation method of the plate type is used to observe the change values of the three directions of the external joint, the error movement and the height difference of the secondary contraction joints. It is made of bolts bent on two sides of the concrete on the expansion joint and bent to form a vertical forming iron plate. The width is about 30cm, and the thickness is 5~7mm. There are three stainless steel or copper punctuation on the pattern board. During the observation, the distance between three pairs of three prism bars in stainless steel (or copper) quality in three directions was measured by the external diameter vernier caliper. The relative displacement of the expansion joint in three directions can be obtained. C型桥梁伸缩缝指的是为满足桥面变形的要求，一般是在两梁端之间、梁端与桥台之间或桥梁的铰接位置上设置伸缩缝。要求伸缩缝在平行、垂直于桥梁轴线的两个方向，均能自由伸缩，牢固可靠，车辆行驶过时应平顺、无突跳与噪声；要能防止雨水和垃圾泥土渗入阻塞；安装、检查、养护、消除污物都要简易方便。 在设置伸缩缝处，栏杆与桥面铺装都要断开。桥梁伸缩缝非常重要，弄不好是会出现安全事故的，所以桥梁伸缩缝不容忽视。 The C type bridge expansion joint refers to meet the requirements of bridge deck deformation. Generally, there are expansion joints between the two beam ends, between 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 setting of expansion joints, the railing and deck pavement should be disconnected. Bridge expansion joint is very important, it is not good to have safety accidents, so the bridge expansion joint can not be ignored. (1)小跨径的中小桥，如在20m以内的，本人建议还是不设伸缩缝。支座采用固定式橡胶支座，让墩台的弹性变形和台后的土抗力来抵抗温度应力，因变形长度在10m以内伸缩量一般在5mm以内。也可以在路面及桥面铺装摊铺完了，再沿原缝开一条宽2cm深3～5cm的假缝，内填以沥青麻絮或其他可塑性材料以防面龟裂。 (1) small span small and medium sized bridges, such as within 20m, I suggest that there is no expansion joint. Bearing with a fixed rubber bearing, the elastic deformation of the pier for soil resistance and Taiwan to resist the temperature stress, deformation due to the length of the 10m within the expansion amount is generally less than 5mm. You can also shop in the finished pavement and bridge deck pavement paving, and then along the original seam a width 2cm depth of 3 ~ 5cm basting, filled with bitumen oakum or other plastic materials to prevent surface cracks. (2)而针对于中、小桥宜采用W型伸缩装置，它具有以下一些优点：①伸缩体与铁件联接可不用胶水，而利用橡胶本身的预压密缝防水；②构件尺寸小，相应材料用量省，施工方便，造价低 (2) for the medium and small bridges, the W type expansion device should be adopted. It has the following advantages: (1) the connection between the expansion body and the iron piece can be done without glue, and the rubber is pre watertight and watertight by using rubber itself. Secondly, the size of the components is small, the amount of the corresponding materials is saved, the construction is convenient, and the cost is low.

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