CN101759079B - Method for integrally assembling and installing steel structure elevator derrick on the ground - Google Patents

Method for integrally assembling and installing steel structure elevator derrick on the ground Download PDF

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Publication number
CN101759079B
CN101759079B CN 200910261825 CN200910261825A CN101759079B CN 101759079 B CN101759079 B CN 101759079B CN 200910261825 CN200910261825 CN 200910261825 CN 200910261825 A CN200910261825 A CN 200910261825A CN 101759079 B CN101759079 B CN 101759079B
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column
ground
derrick
columns
welding
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CN101759079A (en
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庄利军
卫芷
王续东
常彦妮
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China Shanxi Sijian Group Co Ltd
Shanxi Construction Engineering Group Co Ltd
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China Shanxi Sijian Group Co Ltd
Shanxi Construction Engineering Group Co Ltd
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Abstract

本发明涉及一种施工方法,具体为一种钢结构电梯井架地面整体拼接安装方法。解决现有技术中存在的电梯井架垂直组合安装带来的施工难度大、质量差等问题。包括如下步骤:在地面组装拼装平台,在平台上先装第一立柱、第二立柱,在两根立柱上安装各段横梁;然后开始在两根立柱上拼装立面方向的横梁,再拼装另一侧的第三立柱、第四立柱,补齐其余横梁,再次复核;先完成井架中部横梁上下与立柱的焊接,吊装就位。变高空作业为地面作业,降低了施工难度。可有效控制焊接变形,大大减少垂直运输量,加快施工进度。

The invention relates to a construction method, in particular to a method for integrally splicing and installing the ground of a steel structure elevator derrick. The problem of high construction difficulty and poor quality caused by the vertical combination installation of the elevator derrick existing in the prior art is solved. It includes the following steps: assemble the assembled platform on the ground, first install the first column and the second column on the platform, install each section of beam on the two columns; then start to assemble the beam in the direction of the facade on the two columns, and then assemble the other For the third column and the fourth column on one side, fill up the remaining beams and check again; first complete the welding of the upper and lower beams in the middle of the derrick to the columns, and hoist them in place. Changing high-altitude operations to ground operations reduces the difficulty of construction. It can effectively control the welding deformation, greatly reduce the vertical transportation volume and speed up the construction progress.

Description

The whole splicing in steel structure elevator well frame ground installation method
Technical field
The present invention relates to a kind of construction method, be specially the whole splicing in a kind of steel structure elevator well frame ground installation method.
Background technology
In public building, sightseeing elevator is used more and more widely, and this elevator adopts steel structure derrick more.Traditional installation method generally is that column is installed earlier, adorns beam then, the segmentation butt joint.Along with the height of building is increasingly high, produce bigger vertical transport amount, and the sectional area of column is less; Operation easier was bigger when the workmen welded butt joint aloft, and is dangerous high, and welding quality is difficult to guarantee; Bigger deflection appears, often out of reach AR.
Summary of the invention
The present invention installs problems such as the difficulty of construction of bringing is big, of poor quality and the whole splicing in a kind of steel structure elevator well frame ground installation method is provided in order to solve the elevator well frame vertical cartel that exists in the prior art.
The present invention is realized that by following technical scheme the whole splicing in a kind of steel structure elevator well frame ground installation method comprises the steps:
1, the assembling platform for lining on ground, described platform is some supporting traverses;
2, on platform, adorn first column, second column earlier, two root post end part aligning, the other end is reserved and is not more than 1 meter gap;
3, on two root posts, emit the crossbeam position line, each section crossbeam is installed;
4, begin the crossbeam of assembly unit facade direction on two root posts then, weigh down the squareness of controlling both direction with theodolite and magnetic line of force;
5, the 3rd column of assembly unit opposite side, the 4th column are again formed the elevator well frame lattice;
6, all the other crossbeams of polishing between upper strata the 3rd column, the 4th column, the reversible deformation that adds angle steel or steel pipe in the column outside is supported; Interim diagonal ligament is set in lattice, prevents welding deformation.
6a, for the two terraced structure of forming by 6 root posts, to the in-plane expansion, on platform, continue the 5th column is installed behind the intact lattice of assembly unit, the crossbeam between the 5th column and first column is installed again;
6b, again the 5th column upper beam and the 6th column are being installed, method and measure of control are with step 4, step 5;
Crossbeam between 6c, installation the 6th column and the 4th column; And add the interim support between each column,
7, before the formal welding, check the levelness of oad He each member of structure once more, squareness, and it is poor to check the diagonal line of lattice, prevents structural distortion.
8, accomplish earlier the derrick middle beam up and down with the welding of column, two people weld to bilateral symmetry from the derrick middle part simultaneously then; Stress is discharged from the middle part laterally, prevent that the excessive member that causes of local stress from twisting.
9, welding finishes, and checks scantling and distortion situation, and the back that meets the requirements is with 50T crane 14 hoisted in position.Prevent during lifting that the deflection distortion is excessive, hang ground and establish an auxiliary suspension centre in front at the middle part, with the auxiliary lifting of a 16T crane.When member and ground angle during greater than 75 °, unclamp auxiliary suspension centre, it is in place progressively to make member vertically hang ground by a crane.
10, the above derrick of 25m divides two sections assembly units, aerial butt joint.Joint form is with 45 ° of mitre joints, the two adjacent upright stitching position 1m that staggers.For guaranteeing that shaft is vertical up and down; Mismatch do not occur, respectively add a connection of weldering otic placode in both sides up and down, sandwich gad in connection otic placode side at the joint location shaft; Through knocking gad lower prop is aligned, and from both direction is whole vertical with two theodolite control shafts in length and breadth.By two people symmetry welding simultaneously, prevent distortion during the pillar butt joint from both sides.Butt joint prescinds the connection otic placode after accomplishing, and polishes flat.
Adopt the horizontal assembling method of field ground of the present invention, elevator well frame is assembled welding accomplish on the installation on ground platform, disposable hoisted in position highly surpasses 30m, can be divided into two sections assembly units and accomplish, and accomplishes butt joint in the air at height.With this kind method highly bigger structure has been carried out the conversion of plane and facade, uprising idle job is Ground Operation, has reduced difficulty of construction.Can effectively control welding deformation, significantly reduce the vertical transport amount, accelerating construction progress.
Description of drawings
Fig. 1 is that the component locations of the method for the invention is installed one of graph of a relation
Fig. 2 is the left view of Fig. 1
Fig. 3 is the birds-eye view of Fig. 1
Fig. 4 is that the component locations of the method for the invention is installed two of graph of a relation
Fig. 5 is the left view of Fig. 4
Fig. 6 is the birds-eye view of Fig. 4
Fig. 7 is that the component locations of the method for the invention is installed three of graph of a relation
Fig. 8 is the left view of Fig. 7
Fig. 9 is the birds-eye view of Fig. 7
Figure 10 is that the component locations of the method for the invention is installed four of graph of a relation
Figure 11 is the right elevation of Figure 10
Figure 12 is that the component locations of the method for the invention is installed five of graph of a relation
Figure 13 is the right elevation of Figure 12
Figure 14 is that the component locations of the method for the invention is installed six of graph of a relation
Figure 15 is the right elevation of Figure 14
Figure 16 is the lifting scheme drawing
Figure 17 is the splicing scheme drawing
The specific embodiment
A kind of being applicable in the height 50m, the whole splicing in the steel structure elevator well frame ground of the indoor and outdoor elevator well frame that welding or hot-rolled steel section are formed installation method may further comprise the steps:
1, like Fig. 1,2,3 signals, the assembling platform for lining 1 on ground, described platform 1 is some supporting traverses, requires planeness, levelness deviation control in 2mm;
2, like Fig. 2,3 signals, on platform 1, adorn first column, 2, the second columns, 3, two root post end part aligning earlier, the other end is reserved and is not more than 1 meter gap, is controlled in the 2mm the thin parallels adjustment of available 1mm during assembly unit with the levelness of engineer's spirit level with two root posts;
3, on first column 2, second column 3, emit the crossbeam position line; Each section crossbeam 4 is installed; Measure diagonal line with steel ruler; Require crossbeam 4 to keep horizontal surfaces vertical, upright, each member is positioned weldering in the assembly unit process, guarantee in construction, to reduce fusion length under the not open circuited situation as far as possible with first column 2, second column 3.
4, like Fig. 4,5,6 signals, the crossbeam 5 of beginning assembly unit facade direction on first column 2, second column 3, with theodolite with magnetic line of force bob control the squareness of both direction;
5, like Fig. 7,8,9 signals, at assembly unit opposite side the 3rd column 6, the 4th column 8, form the elevator well frame lattice, the 3rd column 6, the 4th column 8 usefulness engineer's spirit level controlling level degree are in 2mm;
6, all the other crossbeams 7 of polishing between the 3rd column 6, the 4th column 8, the reversible deformation that adds angle steel or steel pipe in the column outside is supported; Interim diagonal ligament is set in lattice, prevents welding deformation.
7, like Figure 10,11,12 signals, for the two terraced structure of forming by 6 root posts, to the in-plane expansion, the 5th column 10 is installed on platform behind the intact lattice of assembly unit, the crossbeam 9 between the 5th column 10 and first column 2 is installed.Same guarantee the 5th column 10, first column 2, and crossbeam 9 between levelness and crossbeam 9,4 and column vertical, upright.
8, the 5th column 10 upper beam 11 and the 6th column 12 are installed, method and measure of control are with step 4, step 5;
9,, crossbeam 13 between the 6th column 12 and the 4th column 8 is installed, and is added the interim support between each column like Figure 14,15 signals.
10, before the formal welding, check the levelness of oad He each member of structure once more, squareness, and it is poor to check the diagonal line of lattice, prevents structural distortion.
11, accomplish earlier the derrick middle beam up and down with the welding of column, two people weld to bilateral symmetry from the derrick middle part simultaneously then; Stress is discharged from the middle part laterally, prevent that the excessive member that causes of local stress from twisting.And in welding process measuring deformation amount at any time, surpass the flame correction that carries out of distortion allowed band.
12, like Figure 16, welding finishes, and checks scantling and distortion situation, and the back that meets the requirements is with 50T crane 14 hoisted in position.Prevent during lifting that the deflection distortion is excessive, hang ground and establish an auxiliary suspension centre in front at the middle part, with the auxiliary lifting of a 16T crane.When member and ground angle during greater than 75 °, unclamp auxiliary suspension centre, it is in place progressively to make member vertically hang ground by a crane.
13, meaning shown in figure 17, the above derrick of 25m divides two sections assembly units, aerial butt joint.Joint form is with 45 ° of mitre joints, the two adjacent upright stitching position 1m that staggers.For guaranteeing that shaft is vertical up and down; Mismatch do not occur, respectively add a connection of weldering otic placode in both sides up and down, sandwich gad in connection otic placode side at the joint location shaft; Through knocking gad lower prop is aligned, and from both direction is whole vertical with two theodolite control shafts in length and breadth.By two people symmetry welding simultaneously, prevent distortion during the pillar butt joint from both sides.Butt joint prescinds the connection otic placode after accomplishing, and polishes flat.

Claims (4)

1.一种钢结构电梯井架地面整体拼接安装方法,包括如下步骤:1. A method for splicing and installing the ground of a steel structure elevator derrick as a whole, comprising the following steps: (1)、在地面组装拼装平台(1),所述的平台(1)为若干支撑横梁;(1), assemble the assembled platform (1) on the ground, and described platform (1) is a plurality of support beams; (2)、在平台(1)上先装第一立柱(2)、第二立柱(3),第一立柱(2)、第二立柱(3)端部对齐,另一端留出不大于1米的差距;(2), first install the first column (2) and the second column (3) on the platform (1), the ends of the first column (2) and the second column (3) are aligned, and the other end is not more than 1 meter gap; (3)、在两根立柱上放出横梁定位线,安装各段横梁;(3), release the beam positioning line on the two columns, and install each section of the beam; (4)、然后开始在两根立柱上拼装立面方向的横梁,用经纬仪和磁力线坠控制两个方向的垂直度;(4), then start to assemble the beams in the direction of the facade on the two columns, and use the theodolite and the magnetic pendant to control the perpendicularity of the two directions; (5)、再拼装另一侧的第三立柱(6)、第四立柱(8),组成电梯井架格构;(5), assemble the third column (6) and the fourth column (8) on the other side again to form the elevator derrick lattice structure; (6)、在上层第三立柱(6)、第四立柱(8)之间补齐其余横梁,在立柱外侧加角钢或钢管的反变形支撑;在格构内设置临时斜支撑,防止焊接变形;(6) Complete the rest of the beams between the third column (6) and the fourth column (8) on the upper floor, and add anti-deformation support of angle steel or steel pipe on the outside of the column; set temporary oblique supports in the lattice to prevent welding deformation ; (7)、正式施焊前,再次复核结构的外形尺寸和各构件的水平度,垂直度,并复核格构的对角线差,防止结构扭曲;(7) Before formal welding, recheck the external dimensions of the structure and the levelness and verticality of each component, and check the diagonal difference of the lattice to prevent structural distortion; (8)、先完成井架中部横梁上下与立柱的焊接,然后两人同时从井架中部向两侧对称焊接;使应力从中部向外侧释放,防止局部应力过大造成构件扭曲;(8) First complete the welding of the upper and lower beams in the middle of the derrick and the columns, and then two people weld symmetrically from the middle of the derrick to both sides at the same time; release the stress from the middle to the outside to prevent the component from being twisted due to excessive local stress; (9)、焊接完毕,用50T吊车(14)吊装就位,起吊时防止构件挠曲变形过大,吊离地面前在中部设一辅助吊点,用一台16T吊车辅助起吊,当构件与地面角度大于75°时,松开辅助吊点,由一台吊车逐步使构件垂直吊离地面就位。(9), after welding is finished, hoist it in place with a 50T crane (14), prevent the component from too much deflection and deformation during lifting, set an auxiliary lifting point in the middle before lifting off the ground, and use a 16T crane to assist lifting. When the ground angle is greater than 75°, loosen the auxiliary lifting point, and gradually lift the component vertically off the ground and put it in place by a crane. 2.根据权利要求1所述的钢结构电梯井架地面整体拼接安装方法,还包括如下步骤:2. The overall splicing and installation method of the steel structure elevator derrick ground according to claim 1, further comprising the following steps: (10)、25m以上井架分两段拼装,空中对接。(10) The derrick above 25m is assembled in two sections and docked in the air. 3.根据权利要求2所述的钢结构电梯井架地面整体拼接安装方法,还包括如下步骤:3. The overall splicing and installation method of the steel structure elevator derrick ground according to claim 2, further comprising the following steps: 接头形式用45°斜接头,相邻两立柱拼接位置错开1m,在接头位置柱身上下两侧各加焊一块连接耳板(15),在连接耳板侧面夹入钢楔,通过敲击钢楔使上下柱对正,并从纵横两个方向用两台经纬仪控制柱身整体垂直,柱子对接时由两人从两侧同时对称焊接,对接完成后,割去连接耳板,打磨平整。The joint form uses a 45° oblique joint, and the splicing positions of two adjacent columns are staggered by 1m. A connecting ear plate (15) is welded on the upper and lower sides of the column at the joint position, and a steel wedge is clamped on the side of the connecting ear plate. Wedges are used to align the upper and lower columns, and two theodolites are used to control the overall verticality of the column body from both vertical and horizontal directions. 4.根据权利要求1或2所述的钢结构电梯井架地面整体拼接安装方法,其特征在于:在步骤(6)完成后还继续以下步骤,4. The method for splicing and installing the steel structure elevator derrick ground as a whole according to claim 1 or 2, characterized in that: after step (6) is completed, the following steps are continued, (6a)、对于有6根立柱组成的双梯结构,拼装完一个格构后向平面方向扩展,在平台上继续安装第五立柱(10),再安装第五立柱(10)与第一立柱(2)之间的横梁;(6a), for a double-ladder structure composed of 6 columns, after assembling a lattice structure, expand to the plane direction, continue to install the fifth column (10) on the platform, and then install the fifth column (10) and the first column (2) beams between; (6b)、再在第五立柱(10)上部安装横梁与第六立柱(12),方法及控制措施同步骤(4)、步骤(5);(6b), crossbeam and the sixth column (12) are installed on the fifth column (10) top again, method and control measure are with step (4), step (5); (6c)、安装第六立柱(12)和第四立柱(8)之间横梁;并加设各立柱之间的临时支撑,然后继续步骤(7)。(6c), installing the crossbeam between the sixth column (12) and the fourth column (8); and adding temporary supports between each column, and then proceed to step (7).
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