E型橋梁伸縮縫

E型橋梁伸縮縫

GQF型伸縮縫的安裝：

GQF type expansion joint installation

安裝方式：

Installation method

a、安裝時(shí)，按實(shí)際溫度確定其安裝寬度值。

When the A is installed， the value of the installation width is determined at the actual temperature.

b、伸縮縫安裝過(guò)程，必須使用伸縮縫裝置整齊排列，保持一定的傾斜度。確保伸縮裝置的高平面與完工的橋面相平。

B， expansion joint installation process， must use the expansion joint arrangement in order， to maintain a certain inclination. Ensure that the maximum plane of the telescopic device is flat with the completed bridge.

c、施工方法

C and construction methods

清理槽口，使之達(dá)到設(shè)計(jì)寬度和深度，清除與位移箱埋入有干擾的鋼筋，預(yù)留坑的開(kāi)口必須大于伸縮縫的安裝寬度。

First， clear the notch to make the design width and depth clear， and remove the reinforced steel embedded in the displacement box. The opening of the reserved pit must be larger than the installation width of the expansion joint.

檢查伸縮裝置的各梁之間間隙是否符合安裝溫度要求，否則，應(yīng)用水平千斤頂、夾具進(jìn)行調(diào)整直至符合設(shè)計(jì)要求，調(diào)整好后，立即安上專(zhuān)用夾具。

Second， check whether the gap between the beams of the telescopic device meets the installation temperature requirements. Otherwise， if the horizontal jack and fixture are adjusted， until the design requirements are met， after adjustment， a special fixture is immediately installed.

根據(jù)伸縮縫中心位置設(shè)置起吊裝置，將伸縮裝置安入在槽口內(nèi)，并使伸縮裝置的頂面與橋面標(biāo)高相同。同時(shí)注意縱橫坡也應(yīng)與橋面相符。

The lifting device is set according to the center position of the expansion joint， and the telescopic device is installed in the slot， and the top surface of the telescopic device is the same as the elevation of the bridge surface. At the same time， it should be noted that the vertical and horizontal slope should be consistent with the bridge surface.

伸縮裝置吊入預(yù)留槽后，其中心線(xiàn)應(yīng)與梁端預(yù)留間隙中心線(xiàn)對(duì)正，其長(zhǎng)度與橋梁寬度對(duì)正。

After the telescopic device is hoisted into the reserved slot， the center line should be correct with the center line of the clearance of the beam end， and its length is positive to the width of the bridge.

對(duì)伸縮裝置直線(xiàn)段進(jìn)行調(diào)整，并使各縱梁的縫隙均勻一致。

Adjust the straight-line section of the telescopic device and make the cracks of the longitudinal beams uniform.

再在伸縮裝置箱體或錨固板處，立焊16以上的鋼筋進(jìn)行高度定位，橫焊16鋼筋進(jìn)行寬度定位。

Then the expansion device box or anchor plate， height positioning welding with reinforced by more than 16， the width of the transverse welding positioning with 16 steel.

伸縮裝置正確就位錨固后，便可以將伸縮裝置一側(cè)的錨固鋼筋和預(yù)留槽預(yù)留鋼筋焊接以保證伸縮裝置線(xiàn)向固定并找平，焊接時(shí)只要每隔23個(gè)錨固筋焊接一個(gè)即可，然后再按上述步驟 焊接另一側(cè)的錨固筋。待兩側(cè)達(dá)到固定后，就可將其余焊接的錨固筋再進(jìn)行焊接，確保可靠錨固。在焊接錨固筋時(shí)要注意不要在邊梁和中梁上任意施工焊，以防鋼梁發(fā)生扭曲變形。

The expansion device is correctly positioned after anchoring， anchoring steel telescopic device can be on one side of the slot is reserved and welded steel to ensure the expansion device to the fixed line and leveling， welding as long as every 2 3 anchoring steel welding a can， and then according to the steps of welding the other side of the anchor bar. After the two sides are fixed， the rest of the welded anchorage can be welded to ensure the reliable anchorage. In order to prevent the distortion and distortion of the steel beam， no construction welding on the side beam and the middle beam should be paid attention to in the welding of the anchorage reinforcement.

伸縮裝置如果分段安裝，接縫處必須焊接，焊接應(yīng)由專(zhuān)業(yè)人員進(jìn)行，每根梁焊好后，再按步驟進(jìn)行錨固。

The expansion device if the segment joint must be installed， welding， welding should be professional， each beam welding， according to the steps of anchorage.

根據(jù)縫的外形尺寸和預(yù)留槽口制作模板，模板放好后應(yīng)遮擋嚴(yán)實(shí)，以防水漿流入位移箱內(nèi)，伸縮縫上平面加蓋板，以防砂漿落入橡膠密封帶，在檢查裝置的正確平整度和中線(xiàn)位置，以 及縫隙是否均符合要求后，方可灌入混凝土，并對(duì)混凝土充分振搗壓實(shí)，尤其應(yīng)注意位移箱與預(yù)留坑基面不能留下空洞。待混凝土固化后撤去模板和伸縮縫上的固定卡。

According to the shape and size to seam reserved template template slot in place， should cover tightly， with waterproof slurry inflow displacement box， expansion joints on the plane and cover， to prevent falling into the mortar with rubber seal， the inspection device correct flatness and the midline， and the gap is not meet the requirements， can pouring concrete， concrete and vibrating compaction on full vibration， especially should pay attention to the displacement and the reserved box can not leave the empty pit base. Fixed card removed template and expansion joints on the concrete to be cured.

在伸縮縫處混凝土未達(dá)到80%的強(qiáng)度前，伸縮縫不能承受外來(lái)荷載作用。

In the expansion joints of concrete strength did not reach 80% before， can not withstand external load expansion joint.