CN103669883B - A kind of installation adjusting method of combined isolation bearing - Google Patents
A kind of installation adjusting method of combined isolation bearing Download PDFInfo
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- CN103669883B CN103669883B CN201310582981.0A CN201310582981A CN103669883B CN 103669883 B CN103669883 B CN 103669883B CN 201310582981 A CN201310582981 A CN 201310582981A CN 103669883 B CN103669883 B CN 103669883B
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Abstract
An installation adjusting method for combined isolation bearing, mounting and adjusting step comprises: the construction of substructure, positioning of lower buttress built-in fitting, use elevation control device adjustment absolute altitude, use planeness control member adjustment planeness, reinforcement of weld mould, use axial line control device adjustment axial location, lower buttress built-in fitting is rigidly connected, build lower buttress concrete, shock isolating pedestal is installed, buttress built-in fitting in welding, the construction of superstructure, builds buttress concrete.The invention solves in the process of installing shock isolating pedestal, the technical problem of carrying out effectively adjustment is difficult to the absolute altitude at upper and lower buttress embedded board center, gradient and axial location.
Description
Technical field
The present invention relates to a kind of mounting method of shock isolating pedestal, the method for adjustment of degree of accuracy when particularly a kind of combined isolation bearing is installed.
Background technology
The seismic isolation technology that recent domestic is widelyd popularize is a novel construction technology, it is by being placed in shock isolating pedestal bottom works and between basis, superstructure and basis " separating ", thus alleviate earthquake response significantly, reach the effect of a buffering, geological process is disperseed fully.In the process of actual installation shock isolating pedestal, installation focuses on locating accurately shock isolating pedestal, the accuracy of the embedded board link position particularly between shock isolating pedestal and upper and lower buttress, this accuracy comprises the absolute altitude at upper and lower buttress embedded board center, gradient and axial location, this control of 3 is the difficult point of shock isolating pedestal construction always, is the emphasis ensureing construction quality.
Summary of the invention
The object of this invention is to provide a kind of installation adjusting method of combined isolation bearing, solve in the process of installing shock isolating pedestal, the technical problem of carrying out effectively adjustment is difficult to the absolute altitude at upper and lower buttress embedded board center, gradient and axial location.
For achieving the above object, the present invention adopts following technical scheme:
An installation adjusting method for combined isolation bearing, step is as follows:
Step one: the substructure below shock isolating pedestal is constructed, and buttress reinforcing cage under colligation;
Step 2: the position of lower buttress built-in fitting is positioned: use same long with the auxiliary mould of wide 20mm steel plate as lower buttress installation in position with built-in fitting before construction according to pre-buried position in advance, buttress position under design is arranged on according to the good cross hairs of designing requirement bullet on auxiliary mould, carry out the removing of pre-buried position obstruction in advance, can more accurate positioning during to ensure that lower buttress is installed, complete the control of central point;
Step 3: installed height mark control device, adjustment elevation control device, to design elevation, then uses the lower buttress built-in fitting of the jack pulling adjustment of corresponding tonnage, makes it be promoted to elevation control device upper surface, complete the control of absolute altitude;
Step 4: at the bottom of lower buttress built-in fitting dowel welding planeness control member, planeness control member elevation of bottom keeps level, ensures the planeness that lower buttress is installed and horizontal error, guarantees that error is in allowed band, complete the adjustment of planeness, then remove elevation control device;
Step 5: buttress built-in fitting under first spot welding on lower buttress reinforcing cage, then covers reinforcing mould, then carry out the full weld between two pieces of built-in fittings between adjacent two pieces of lower buttress built-in fitting upper surfaces;
Step 6: use the axis of the lower buttress built-in fitting of axial line control device adjustment to precalculated position: installation shaft thread control device, use the jackscrew top in axial line control device to draw and control the large axis of adjustment, use Chain block to hang and draw control detailed section axis, both with the use of, complete the control of axis;
Step 7: set up rigid connector between the upper surface of adjacent two lower buttress built-in fittings, complete being rigidly connected of built-in fitting;
Step 8: prop up and set buttress template and build lower buttress concrete, remove axial line control device before lower buttress concrete coagulation;
Step 9: install shock isolating pedestal;
Step 10: upper reserving gaps between buttress built-in fitting and shock isolating pedestal, centre adds taper liner block, and arrange liner plate on the downside of adjacent two pieces of upper buttress built-in fitting junctions, liner plate bottom uses jack to hold out against;
Step 11: weld adjacent two pieces of upper buttress built-in fittings, welded backed off after random jack, cut off backing plate and polish, taken off taper liner block, then tight a bolt;
Step 12: buttress reinforcing cage in colligation, installs buttress template and builds buttress concrete;
Step 13: construct to the superstructure above shock isolating pedestal, form removal is checked and accepted.
In described step 2, described auxiliary mould is and the steel plate of built-in fitting with size, steel plate has built-in fitting dowel location hole and sleeve hole, is placed on by auxiliary mould on lower buttress reinforcing cage, check whether the stud of reinforcing cage hinders built-in fitting in place, and the stud that process is long in time.
In described step 3, described elevation control device is four root posts facing each other, column is arranged on the both sides of lower buttress built-in fitting to be installed, every side arranges two, described column cornice has base plate and base plate and ground are fixed, and is fixedly connected with, the shaft of column is welded with bracket with between heel post, bracket is provided with absolute altitude control member, and described lower buttress built-in fitting rides over absolute altitude control member upper surface.
In described step 4, described planeness control member is the some isometric font of falling T manomelia reinforcing bars, and the manomelia reinforcing bar in built-in fitting bight adds four diagonal braces again.
In described step 5, described reinforcing mould is the measure-alike steel plate of lower buttress built-in fitting adjacent with two pieces.
In described step 6, described axial line control device is two root type steel posts, be arranged on the adjacent both sides of lower buttress built-in fitting, described shaped steel column with base plate and base plate and ground fix, also cross-brace is provided with between shaped steel column and ground, shaped steel column is fixed with jackscrew, jackscrew prop up withstand on lower buttress built-in fitting side on.
In described step 10, between upper buttress built-in fitting and shock isolating pedestal, reserving gaps is 10-20mm.
Compared with prior art the present invention has following characteristics and beneficial effect:
The invention solves in the process of installing shock isolating pedestal, the technical problem of carrying out effectively adjustment is difficult to the absolute altitude at upper and lower buttress embedded board center, gradient and axial location.
The device that the present invention uses all is drawn materials conveniently, can make on the spot at the construction field (site), can recycle.
Installation adjusting method provided by the invention is simple and effective easy to operate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the schematic diagram of step one in mounting method of the present invention.
Fig. 2 is the schematic diagram of step 2 in mounting method of the present invention.
Fig. 3 is the schematic diagram of step 3 in mounting method of the present invention.
Fig. 4 is the schematic top plan view of Fig. 3.
Fig. 5 is the schematic diagram of step 4 in mounting method of the present invention.
Fig. 6 is the schematic diagram of step 5 in mounting method of the present invention.
Fig. 7 is the schematic side view of step 6 in mounting method of the present invention.
Fig. 8 is the schematic perspective view of Fig. 7.
Fig. 9 is the schematic diagram of a kind of embodiment of step 7 in mounting method of the present invention.
Figure 10 is the schematic diagram of a kind of embodiment of step 7 in mounting method of the present invention.
Figure 11 is the schematic diagram of a kind of embodiment of step 7 in mounting method of the present invention.
Figure 12 is the schematic diagram of a kind of embodiment of step 7 in mounting method of the present invention.
Figure 13 is the schematic diagram of step 8 in mounting method of the present invention.
Figure 14 is the schematic diagram of step 9 in mounting method of the present invention.
Figure 15 is the schematic diagram of step 10 in mounting method of the present invention.
Figure 16 is the schematic diagram of step 12-ten three in mounting method of the present invention.
Reference numeral: 1-shock isolating pedestal, 2-substructure, buttress built-in fitting under 3-, 4-auxiliary mould, 4.1-dowel location hole, 4.2-sleeve hole, 5.1-column, 5.2-bracket, 5.3-absolute altitude control member, 6.1-manomelia reinforcing bar, 6.2-diagonal brace, 7-reinforces mould, 8.1-shaped steel column, 8.2-cross-brace, 8.3-jackscrew, 9-rigid connector, the upper buttress built-in fitting of 10-, 11-taper liner block, 12-liner plate, 13-jack, 14-superstructure, the upper buttress concrete of 15-, buttress concrete under 16-, buttress reinforcing cage under 17-.
Detailed description of the invention
Embodiment as shown in the figure, a kind of installation adjusting method of combined isolation bearing, step is as follows:
Step one: shown in Figure 1, constructs to the substructure 2 below shock isolating pedestal 1, and buttress reinforcing cage 17 under colligation.
Step 2: shown in Figure 2, the position of lower buttress built-in fitting 3 is positioned, the stud of lower buttress reinforcing cage is as too high in absolute altitude, just the pre-buried of built-in fitting can be carried out after need processing in advance, buttress position under design is arranged on according to the good cross hairs of designing requirement bullet on auxiliary mould, auxiliary mould 4 is used to carry out the removing of pre-buried position obstruction in advance according to pre-buried position before construction, can more accurate positioning during to ensure that lower buttress is installed, complete the control of central point; Described auxiliary mould 4 is and the steel plate of built-in fitting with size, steel plate has built-in fitting dowel location hole 4.1 and sleeve hole 4.2, auxiliary mould is placed on lower buttress reinforcing cage, checks whether the stud of reinforcing cage hinders built-in fitting in place, and the stud that process is long in time.
Step 3: shown in Fig. 3-4, installed height mark control device, adjustment elevation control device is to design elevation, use the absolute altitude of the lower buttress built-in fitting 3 of elevation control device adjustment to precalculated position, then the lower buttress built-in fitting (3) of the jack pulling adjustment of corresponding tonnage is used, and use jack that lower buttress built-in fitting 3 is promoted to elevation control device upper surface, complete the control of absolute altitude; Described elevation control device is four root posts 5.1 facing each other, column is arranged on the both sides of lower buttress built-in fitting to be installed, every side arranges two, described column cornice has base plate and base plate and ground are fixed, be fixedly connected with between heel post, shaped steel generally can be used to weld, the shaft of column is welded with bracket 5.2, bracket is provided with absolute altitude control member 5.3, and described lower buttress built-in fitting 3 rides over absolute altitude control member 5.3 upper surface.In the present embodiment, column and absolute altitude control member are shaped steel, and the distance of each heel post and lower buttress can be set to 300mm.
Step 4: shown in Figure 5, at the bottom of lower buttress built-in fitting dowel 3.1 welding planeness control member, planeness control member elevation of bottom keeps level, ensure the planeness that lower buttress is installed and horizontal error, guarantee that error is in allowed band, complete the adjustment of planeness, then remove elevation control device, described planeness control member is the some isometric font of falling T manomelia reinforcing bars 6.1, and the manomelia reinforcing bar in built-in fitting bight adds four diagonal braces 6.2 again.The secondary screw-thread steel of eight 25mm is used to weld with lower buttress built-in fitting dowel 3.1 as manomelia reinforcing bar 6.1 in the present embodiment, each lower buttress built-in fitting dowel 3.1 can arrange 8 manomelia reinforcing bars 6.1,4 same diameters, level Φ 25 secondary screw-thread steel muscle diagonal brace 6.2 is added again in bight, fully can ensure planeness and the horizontal error of whole built-in fitting like this, can ensure again not injure main muscle.
Step 5: shown in Figure 6, the installation of lower buttress combination built-in fitting: because combination built-in fitting has cut into two composite member in factory, in order to ensure the relative position of two built-in fitting, on-the-spot will take single built-in fitting is in place complete after first spot welding, the mould of size such as to lay after electric welding, fastening high-strength bolt and correct errorless after carry out full weld.Shown in Figure 5, buttress built-in fitting under first spot welding on lower buttress reinforcing cage, then cover between adjacent two pieces of lower buttress built-in fitting 3 upper surfaces and reinforce mould 7, then carry out the full weld between two pieces of built-in fittings, described reinforcing mould is the measure-alike steel plate of lower buttress built-in fitting adjacent with two pieces.
Step 6: shown in Fig. 7-8, use the axis of the lower buttress built-in fitting 3 of axial line control device adjustment to precalculated position, installation shaft thread control device, use the top of the jackscrew 8.3 in axial line control device to draw and control the large axis of adjustment, use Chain block to hang and draw control detailed section axis, both with the use of, complete the control of axis; Described axial line control device is two root type steel posts 8.1, be arranged on the adjacent both sides of lower buttress built-in fitting, described shaped steel column with base plate and base plate and ground fix, cross-brace 8.2 is also provided with between shaped steel column and ground, shaped steel column is fixed with jackscrew 8.3, jackscrew 8.3 withstands on the side of lower buttress built-in fitting 3.
Step 7: all lower buttress built-in fittings all must be rigidly connected after correction puts in place, are convenient to the displacement ensureing to prevent built-in fitting in the process of concreting like this, also can ensure relative position and the errors of centration of built-in fitting fully.Be depicted as four kinds of embodiments see Fig. 9-12, set up rigid connector 9 between the upper surface of adjacent two lower buttress built-in fittings 3, complete being rigidly connected of built-in fitting.
Step 8: shown in Figure 13, props up and sets buttress template and build lower buttress concrete 16, before lower buttress concrete coagulation, remove axial line control device.
Step 9: shown in Figure 14, installs shock isolating pedestal.
Step 10: relative to the mounting process of built-in fitting on single shock isolating pedestal, the installation of the upper buttress built-in fitting of combined isolation bearing is particularly difficult, in combination, buttress built-in fitting need cut into two composite membeies in factory along the shortest direction, single V-butt is needed out after factory's cutting, the strong weld such as convenient scene, the strong weld, Fire Hazard Area and welding deformation during welding such as to carry out after treating in-site installation, after seam inspection is qualified, is entering next process construction.High-strength bolt is fastenedly connected shock isolating pedestal junction plate and upper buttress built-in fitting, prevents welding deformation when welding built-in fitting at the scene; Shock isolating pedestal contains rubber, so need before welding to properly protect, provision for thermal insulation, in order to not damage shock isolating pedestal when welding, shock isolating pedestal junction steel plate and built-in fitting will be taked first to be free of attachment to position, reserving gaps, increase pad fast 11 in gap, to be welded complete to take out after cushion block be screwed to position.
Shown in Figure 15, reserving gaps between upper buttress built-in fitting 10 and shock isolating pedestal 1, reserving gaps is 10-20mm, and centre adds taper liner block 11, can be parallels in the present embodiment.In order to prevent welding deformation, on the downside of adjacent two pieces of upper buttress built-in fitting junctions, liner plate 12 is set, in the present embodiment, use the band iron of 50X5mm as liner plate 12, the same mother metal of material, liner plate holds out against with 10T jack for 12 times, spacing 500mm, to be weldedly complete backed off after random jack, cut off backing plate and polish flat, not staying splashing, burr etc.;
Step 11: weld adjacent two pieces of upper buttress built-in fittings, welded backed off after random jack, cut off backing plate and polish, taken off taper liner block, then tight a bolt.
Step 12: shown in Figure 16, buttress reinforcing cage in colligation, installs buttress template and builds buttress concrete 15.
Step 13: shown in Figure 16, constructs to the superstructure 14 above shock isolating pedestal, and form removal is checked and accepted.
After welding job in the inventive method completes, all need molten slag and the both sides splash of first clearing up surface, carry out weld inspection subsequently, all butt welds of this engineering are full penetration weld first-order weld.
: to the high process control of base surface, adopt the conventional vertical survey of level gauge, directly record the absolute altitude in built-in fitting face; Establish from the survey away from level datum points, in order to the accidental error of the transmission error and repeatedly reading that reduce level gauge, adopt Trigonometric Leveling by Total Station to record the absolute altitude of built-in fitting.The absolute altitude allowable variation of built-in fitting is 3.0mm.
Two, the control of the planeness of built-in fitting: after with level gauge bigness scale being carried out to the absolute altitude of embedded board, accurately measure by the levelness of frame level to embedded board, the levelness of embedded board is remained within 1/300.
: first main shaft is caused on raft plate, eject with the line of ink marker, again total powerstation is set up in pilot measurement in substructure go out each lower buttress basic axis, with line of ink marker bullet in substructure, and the line of ink marker is caused on each buttress reinforcing cage, finally carry out mark with red paint, correction when facilitating pre-embedded steel slab in place.
Claims (7)
1. an installation adjusting method for combined isolation bearing, is characterized in that: step is as follows:
Step one: the substructure (2) of shock isolating pedestal (1) below is constructed, and buttress reinforcing cage (17) under colligation;
Step 2: the position of lower buttress built-in fitting (3) is positioned: use same long with the auxiliary mould (4) of wide 20mm steel plate as lower buttress installation in position with built-in fitting before construction according to pre-buried position in advance, buttress position under design is arranged on according to the good cross hairs of designing requirement bullet on auxiliary mould, carry out the removing of pre-buried position obstruction in advance, can more accurate positioning during to ensure that lower buttress is installed, complete the control of central point;
Step 3: installed height mark control device, adjustment elevation control device, to design elevation, then uses the lower buttress built-in fitting (3) of the jack pulling adjustment of corresponding tonnage, makes it be promoted to elevation control device upper surface, complete the control of absolute altitude;
Step 4: at the bottom of lower buttress built-in fitting dowel welding planeness control member, planeness control member elevation of bottom keeps level, ensures the planeness that lower buttress is installed and horizontal error, guarantees that error is in allowed band, complete the adjustment of planeness, then remove elevation control device;
Step 5: buttress built-in fitting under first spot welding on lower buttress reinforcing cage, then covers and reinforces mould (7), then carry out the full weld between two pieces of built-in fittings between adjacent two pieces of lower buttress built-in fitting (3) upper surfaces;
Step 6: use the axis of the lower buttress built-in fitting of axial line control device adjustment to precalculated position: installation shaft thread control device, use the top of the jackscrew (8.3) in axial line control device to draw and control the large axis of adjustment, use Chain block to hang and draw control detailed section axis, both with the use of, complete the control of axis;
Step 7: set up rigid connector (9) between the upper surface of adjacent two lower buttress built-in fittings (3), complete being rigidly connected of built-in fitting;
Step 8: prop up and set buttress template and build lower buttress concrete (16), remove axial line control device before lower buttress concrete coagulation;
Step 9: install shock isolating pedestal;
Step 10: upper reserving gaps between buttress built-in fitting (10) and shock isolating pedestal (1), centre adds taper liner block (11), and arrange liner plate (12) on the downside of adjacent two pieces of upper buttress built-in fitting junctions, liner plate (12) bottom uses jack (13) to hold out against;
Step 11: weld adjacent two pieces of upper buttress built-in fittings, welded backed off after random jack, cut off backing plate and polish, taken off taper liner block, then tight a bolt;
Step 12: buttress reinforcing cage in colligation, installs buttress template and builds buttress concrete (15);
Step 13: construct to the superstructure (14) above shock isolating pedestal, form removal is checked and accepted.
2. the installation adjusting method of a kind of combined isolation bearing according to claim 1, it is characterized in that: in described step 2, described auxiliary mould (4) is and the steel plate of built-in fitting with size, steel plate has built-in fitting dowel location hole (4.1) and sleeve hole (4.2), auxiliary mould is placed on lower buttress reinforcing cage, check whether the stud of reinforcing cage hinders built-in fitting in place, and the stud that process is long in time.
3. the installation adjusting method of a kind of combined isolation bearing according to claim 1, it is characterized in that: in described step 3, described elevation control device is four root posts (5.1) facing each other, column is arranged on the both sides of lower buttress built-in fitting to be installed, every side arranges two, described column cornice has base plate and base plate and ground are fixed, be fixedly connected with between heel post, the shaft of column is welded with bracket (5.2), bracket is provided with absolute altitude control member (5.3), and described lower buttress built-in fitting (3) rides over absolute altitude control member (5.3) upper surface.
4. the installation adjusting method of a kind of combined isolation bearing according to claim 1, it is characterized in that: in described step 4, described planeness control member is the some isometric font of falling T manomelia reinforcing bars (6.1), and the manomelia reinforcing bar in built-in fitting bight adds four diagonal braces (6.2) again.
5. the installation adjusting method of a kind of combined isolation bearing according to claim 1, is characterized in that: in described step 5, and described reinforcing mould (7) is the measure-alike steel plate of lower buttress built-in fitting adjacent with two pieces.
6. the installation adjusting method of a kind of combined isolation bearing according to claim 1, it is characterized in that: in described step 6, described axial line control device is two root type steel posts (8.1), be arranged on the adjacent both sides of lower buttress built-in fitting, described shaped steel column with base plate and base plate and ground fix, cross-brace (8.2) is also provided with between shaped steel column and ground, shaped steel column is fixed with jackscrew (8.3), jackscrew (8.3) withstands on the side of lower buttress built-in fitting (3).
7. the installation adjusting method of a kind of combined isolation bearing according to claim 1, is characterized in that: in described step 10, and between upper buttress built-in fitting (10) and shock isolating pedestal (1), reserving gaps is 10-20mm.
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| CN201310582981.0A CN103669883B (en) | 2013-11-20 | 2013-11-20 | A kind of installation adjusting method of combined isolation bearing |
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| CN201310582981.0A CN103669883B (en) | 2013-11-20 | 2013-11-20 | A kind of installation adjusting method of combined isolation bearing |
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Cited By (1)
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| CN107447994A (en) * | 2016-05-30 | 2017-12-08 | 五冶集团上海有限公司 | A kind of concrete column top force-bearing steel plate flatness control methods |
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| CN103669883A (en) | 2014-03-26 |
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