CN103982051A - Historic building slanting timber frame tensioning jacking resetting device - Google Patents
Historic building slanting timber frame tensioning jacking resetting device Download PDFInfo
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- CN103982051A CN103982051A CN201410230215.2A CN201410230215A CN103982051A CN 103982051 A CN103982051 A CN 103982051A CN 201410230215 A CN201410230215 A CN 201410230215A CN 103982051 A CN103982051 A CN 103982051A
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Abstract
The invention provides a historic building slanting timber frame tensioning jacking resetting device which comprises a box body, a ground support, a round bearing table, mechanism arms composed of a vertical arm and a cross arm, a linear displacement amplifying device and an electric winch, an auxiliary jack, a power jack, a universal joint and a variable hoop which are arranged in the box body. A jacking system composed of a hydraulic pump station with a proportional pressure dividing valve and a large-stroke jack and a tensioning system composed of the electric winch, a steel strand and the linear displacement amplifying device are utilized to conduct tensioning and jacking resetting operation on a historic building slanting timber frame. Force transfer condition between the back shore system and the timber frame to be repaired is effectively improved through the universal joint and the variable hoop to achieve steering of a correction force system, secondary stress is greatly reduced in the correction, stress performance of a column head is improved, the column head is protected, and secondary damage caused by concentrated stress caused by the fact that the force system directly acts on the column head in the correction is avoided.
Description
Technical field
The present invention relates to the stretch-draw of the askew sudden strain of a muscle timber frame of a kind of ancient building structure repair device, especially ancient building and shore resetting means.
Background technology
Wood structure ancient building occupies absolute main flow and ascendancy in China's architectural development course, has embodied China's ancient building and cultural core connotation.But due to of the remote past, go through the external actions such as material degeneration and earthquake, corrosion, member inevitably produces damage distortion, and askew flickering forms the Major Diseases for timber frame ancient building, and the safety of structure has been subject to threat.From being built in the Forbidden City palace of the Wooden Pagoda at Yingxian County in Song the Liao Dynasty period to the period of Ming and Qing, mostly exist askew flashing in various degree to resemble.So be one of important process of reinforcing of ancient building repair by the playback of again setting right of the member of the askew sudden strain of a muscle of tilting.Traditional " beating props up sets right " is the compulsory measure of a kind of " hale and resist stubbornly "; the control of shortage to correction righting process; there is certain destructiveness; possible emergency case is lacked to counter-measure; very easily in construction, timber frame is caused to the secondary damage accident that even collapses, this is totally unfavorable to protection ancient building and culture thereof.
Summary of the invention
Object of the present invention is to overcome the askew sudden strain of a muscle timber frame employing of current ancient building " beating props up sets right " thereby the shortcoming that easily causes secondary damage destruction ancient building exactly.
For realizing above object, technical scheme of the present invention is as follows:
Provide the stretch-draw of the askew sudden strain of a muscle timber frame of a kind of ancient building to shore resetting means, comprise casing, support, circular cushion cap, the mechanical arm being formed by armstand and transverse arm, linear displacement amplifying device, the electric winch of being located at box house, auxiliary jack, power jack, universal joint and variable anchor ear; Box house is provided with as assisting jack and power jack that the hydraulic power unit with proportion divider valve of shoring power is provided, proportion divider valve input is connected to hydraulic power unit by petroleum pipeline, proportion divider valve has three outputs, each output all can independently open and close and the same time can only have an output to open, one of them output is connected to the oil cylinder of auxiliary jack by petroleum pipeline, second output is connected to the oil cylinder of power jack by petroleum pipeline; Casing surrounding is rigidly connected with the ground support that lies against ground, and circular cushion cap is installed on casing upper surface and is provided with pivoting support, and pivoting support is connected to motor can rotate by full angle it in horizontal plane; Mechanical arm is welded by real abdomen formula shaped steel, and armstand is fixed on circular cushion cap, and transverse arm one end and armstand are hinged, and auxiliary jack piston top and transverse arm soffit are hinged, shores effect lower cross arm can in vertical plane, freely rotate at auxiliary jack; Linear displacement amplifying device is arranged on transverse arm upper surface, linear displacement amplifying device consists of angle iron frame and the spring, running block and the fixed pulley group that are arranged in order in angle iron frame, and steel strand detour successively and be connected to electric winch after fixed pulley and movable pulley follow-up pulley are drawn; The transverse arm other end and transverse arm coaxial line are installed power jack, and power jack piston top is connected to universal joint one end, and the universal joint other end connects variable anchor ear.
Described casing one side also can connect a rigidity curved bar, and the rigidity curved bar other end has variable anchor ear, and rigidity curved bar soffit is connected to the piston of jack, and the 3rd output of described proportion divider valve is connected to the oil cylinder of jack by petroleum pipeline.Rigidity curved bar is used as auxiliary part, and variable anchor ear is connected with suspension column, under jack effect, utilizes lever principle lifting suspension column, so that process the ground that differential settlement occurs.
Described variable anchor ear is bolted and is formed by two identical semicircle steel members.
When described running block displacement is a, described steel strand are by the distance of mobile 7a.
Described universal joint is formed by connecting by rigidity crossed joint by two identical universal-joint forks.
The present invention is by the hydraulic power unit with proportion divider valve and large stroke jack (power jack, auxiliary jack and jack) system of shoring that forms and by electric winch, the tensioning system that steel strand and linear displacement amplifying device form carries out respectively stretch-draw and shores reset operation the askew sudden strain of a muscle timber frame of ancient building, shore and between system and timber compoment to be repaired, cross the conduction situation that universal joint and variable anchor ear effectively improve power, realize turning to of correction power system, significantly reduce the generation of secondary stress in correction, improved the stress performance of column cap, also be a kind of protection to column cap simultaneously, prevent that in correction, power is to act directly on column cap to cause stress to concentrate and generation secondary damage.Can realize the Precise control of correction process, can significantly reduce the secondary damage that ancient wooden structure correction implementation process is brought, avoid transfiniting and reply the harm bringing.
Accompanying drawing explanation
Fig. 1 the present invention uses schematic diagram;
The connection diagram of Fig. 2 apparatus of the present invention and column cap;
Fig. 3 structural representation of the present invention;
Fig. 4 cross arm structure schematic diagram;
Fig. 5 stretch-draw linear displacement amplifying device structural representation;
Fig. 6 assembly pulley displacement amplification principle schematic diagram;
The variable hooping structure schematic diagram of Fig. 7;
Fig. 8 rigidity curved bar elevation;
Fig. 9 rigidity curved bar top view;
Figure 10 universal joint structure decomposition map;
Figure 11 universal joint connects variable anchor ear and power jack schematic diagram;
Figure 12. hydraulic power unit operating principle block diagram.
In figure: 1. casing; 2. support; 3. circular cushion cap; 4. armstand; 5. transverse arm; 6. linear displacement amplifying device; 61. angle iron frames; 62. springs; 63. running blocks; 64. fixed pulley groups; 7. electric winch; 8. assist jack; 9. power jack; 10. universal joint; 101. universal-joint fork; 102. rigidity crossed joints; 11. variable anchor ears; 111. semicircle steel members; 112 bolts; 12. rigidity curved bars; 121. rigid rod; 13. jacks; 14. askew sudden strain of a muscle pins; 15. hydraulic power units; 16. steel strand.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 3, casing 1 is interior arranges electric winch 7 and with the hydraulic power unit 15 of proportion divider valve, casing 1 surrounding arranges and supports 2, between ground support 2 and casing 1, adopts and is rigidly connected, and prevents that device of the present invention from shoring while operating and topple because counter-force is excessive carrying out stretch-draw.Circular cushion cap 3 is installed on casing 1 top, and circular cushion cap 3 bottoms are provided with pivoting support, and circular cushion cap 3 can be realized the rotation of full angle in horizontal plane, by the motor being attached thereto, provides power, the adjusting to deviation rectification direction in convenient construction process.Mechanical arm (armstand 4 and transverse arm 5) is welded by real abdomen formula shaped steel, armstand 4 is fixed on circular cushion cap 3, transverse arm 5 one end and armstand 4 are hinged, piston tip and transverse arm 5 soffits of auxiliary jack 8 are hinged, can in vertical plane, freely rotate, by auxiliary jack 8, provide power to change the elevation angle.Transverse arm 5 other ends and transverse arm 5 coaxial lines are installed power jack 9, and the piston tip of power jack 9 is connected to universal joint 10 one end, and universal joint 10 other ends connect variable anchor ear 11.
As shown in figure 10, universal joint 10 is formed by connecting by rigidity crossed joint 102 by two identical universal-joint forks 101; As shown in Figure 7, variable anchor ear 11 is formed by connecting by bolt 112 by two identical semicircle steel members 111.As shown in figure 11, universal joint 10 one end are connected with power jack 9 by bolt, and the other end is connected with variable anchor ear 11 by bolt.Universal joint 10 is a kind of rigid universal joints, can realize varied angle transmission of power, changes the position of transmission axis direction, realizes turning to of correction power system, significantly reduces the generation of secondary stress in correction.The class pillar being more or less the same for diameter can adopt identical variable anchor ear 11, and as shown in Figure 2, during operation, variable anchor ear 11 is sleeved on askew sudden strain of a muscle pin 14.For square column, can after the wooden unit of the suitable size of wedging, use variable anchor ear 11.The column cap coupled columns capitiform that variable anchor ear 11 wraps up askew sudden strain of a muscle pin 14 becomes hoop constraint effect, has improved the stress performance of column cap, is also a kind of protection to column cap simultaneously, prevents that in correction, power is to act directly on column cap to cause stress to concentrate and generation secondary damage.
As shown in Figure 4, linear displacement amplifying device 6 is arranged on transverse arm 5 upper surfaces, as shown in Figure 5, linear displacement amplifying device 6 consists of angle iron frame 61 and the spring 62, running block 63 and the fixed pulley group 64 that are arranged in order in angle iron frame 61, and steel strand 16 detour successively and be connected to electric winch 7 after fixed pulley and movable pulley follow-up pulley are drawn; Electric winch 7 provides stretch-draw power, and linear displacement amplifying device 6 has been saved the required stretching force of rectifying a deviation when improving correction precision, can significantly reduce the working load of electric winch 7.The core component part of linear displacement amplifying device 6 is assembly pulleys, the fixed pulley group 64 that the running block 63 that this assembly pulley consists of three movable pulley and three fixed pulleys form forms, as shown in Figure 6, from the laborsaving characteristic of taking distance of assembly pulley, when movable pulley moves certain stroke a, steel strand 16 need be pulled the length of 7a.Utilize this Characteristics Control stretch-draw linear displacement of assembly pulley, if the horizontal stretch-draw displacement of capital controlling value is a, the stroke of running block is a, and it is 7a that electric winch 7 needs the length of the steel strand 16 of stretch-draw, thereby can realize, amplify linear displacement value, improve the object of stretch-draw displacement control accuracy.62, spring is can self-return for movable pulley after completing at tension operation, and convenient tension operation next time arranges.
Rigidity curved bar 12 is used as the auxiliary part of this device, mainly for the situation of suspension column generation differential settlement.Rigidity curved bar 12 consists of rigid rod 121 and variable anchor ear 11, its one end and casing 1 are hinged, during operation, its other end is connected with suspension column via variable anchor ear 11, rigidity curved bar 12 soffits are connected to the piston of jack 13, under the effect of jack 13, utilize lever principle lifting suspension column, so that process the ground that differential settlement occurs.
The system of shoring is comprised of the hydraulic power unit 15 with proportion divider valve and large stroke jack (power jack 9, auxiliary jack 8 and jack 13).Hydraulic power unit 15 provides power for each jack, proportion divider valve input is connected to hydraulic power unit 15 by petroleum pipeline, proportion divider valve has three outputs, each output all can independently open and close and the same time can only have an output to open, one of them output is connected to the oil cylinder of auxiliary jack 8 by petroleum pipeline, second output is connected to the oil cylinder of power jack 9 by petroleum pipeline, the 3rd output is connected to the oil cylinder of jack 13 by petroleum pipeline; The keying that lifting or the decline of proportion divider valve by spool realizes oil duct, 15 pairs of three jack of auxiliary hydraulic pressure pumping plant are controlled respectively.Start hydraulic power unit 15, hydraulic oil passing ratio partial pressure valve, by be transported to each jack by petroleum pipeline, produces and shores power.Shore the operating principle of system hydraulic power unit 15 as shown in figure 12.For stablizing of device and operand in assurance work progress, three jack should not worked simultaneously.In operating process, in the time of should opening and closing in time proportion divider valve and guarantee that a loop is in running order, its cocircuit is in closing (obstructed oil) state.Before starting to construct, tackle the working condition of each jack and debug, guarantee that the pushing tow speed of jack is steady.If speed is not steady, may be in jack, to be mixed with air, should in debug process, open the outlet valve of jack, get rid of and be trapped in the air in jack.After debugging, should regulate in time the travel position of each jack, for subsequent operation facilitates.
As shown in Figure 1, when specifically carrying out stretch-draw and shoring reset operation, generally by following construction sequence, undertaken:
1. the preparation before rectifying a deviation
1) before construction, should first implement and improve historical relic's protection measure.Should under expert on historical relics's guidance, to historical relic, beam, post and mural painting etc., carry out enclosing, parcel, covering and safekeeping, and establish special messenger's monitoring.To the interim structural element of removing of needs, should first multi-angle take pictures, use videotape to record, folding is numbered while removing, registers, properly preserves in order, in order to reinstatement.
2) determine need to post net be rectified a deviation geometric parameter.Can use total powerstation to carry out the three-dimensional localization of post net, accurately the geometric parameter of definite askew sudden strain of a muscle pillar, comprises tilting value, maximum inclination value, sedimentation value and angle of slope, thereby determines the pillar horizontal deviant S in top
hlwith pillar top horizontal displacement design controlling value S
h, suspension column Vertical Settlement value Δ H ' and suspension column vertical deflection design controlling value Δ H.S is got in suggestion
hl=1.05S
hwith Δ H=1.05 Δ H ', to eliminate timber frame, return the impact of inclining.
3) determine load step and rate of rectification.Rate of rectification can adopt displacement-controlled method to control, and each loading step-length should not arrange excessive, can value S
h/ 3 and Δ H/3.In selected fixing declivity observation point and the stretch-draw of capital, shore application point, in the selected lifting application point of suspension column and observation point, in correction process, should note monitoring its horizontal displacement value and vertical deflection value.
4) Installation and Debugging of resetting means are shored in stretch-draw.Debugging apparatus, checks whether each jack and electric winch 7 normally work, and shore, whether stable stretch-draw speed, if there have fortuitous event to start pre-treatment in correction operation to be complete.After having debugged, device can be placed along the larger direction of post net distortion, be established and support 2, anti-locking apparatus topples because counter-force is excessive in correction process.Power jack 9 is connected with variable anchor ear 11 via universal joint 10, and variable anchor ear 11 is shored a little and is connected with the column cap stretch-draw of setting, and the stretch-draw that variable anchor ear 11 is fixed on askew sudden strain of a muscle column cap is shored a little.As shown in Figure 1, the connected mode of device and column cap as shown in Figure 2 for the mounting arrangements of device.
2. the operation of device
In the debugging of finishing device with install after fixing and can formally carry out the deviation rectification of post net.
1) ground of differential settlement is processed.
When there is basic differential settlement in wooden structure ancient architecture, be only that pillar righting is difficult to meet correction requirement, therefore need to first lift flat suspension column.By rigidity curved bar 12, complete the ground of differential settlement is processed, via the variable anchor ear 11 on rigidity curved bar 12, be connected with suspension column, rigidity curved bar 12 soffits are connected to the piston of jack 13, under the effect of jack 13, according to definite lifting step-length (can get step-length is Δ H/3), utilize lever principle lifting suspension column, after lifting completes, need in time that the base for post of sedimentation is padded, make its absolute altitude reach controlling value, more slowly put down pillar, pillar is floated to pendulum on the stone base of a column.
2) column top displacement is carried out to deviation rectification.
By device put fixing after, starting drive, if desired shores operation and starts hydraulic power unit 15, controls power jack 9 and shores operation according to default load step; If desired carrying out tension operation starts electric winch 7 and controls steel strand 16 and slowly carry out tension operation.For the more situation of askew sudden strain of a muscle post, should select from the post of capital horizontal displacement design load maximum, successively each askew sudden strain of a muscle post to be rectified a deviation, each operation is controlled according to default step-length.After an operation cycle completes, need post net placement a period of time to make it fully discharge residual stress, and adopt timber wedge or temporary supporting member to reinforce, and then carry out the operation in next cycle.Should be noted, if the operation cycle too shortly even directly carries out disposable reset operation and can cause stress to be concentrated, very likely damage Tenon connecting portion, wooden structure ancient architecture is caused to the injury that is difficult to make up.By this loop cycle operation, until reach the horizontal displacement design controlling value of each post.
3. the confirmation of rectifying effect and reinforcing
1) after having operated, device needs to carry out the confirmation of rectifying effect, can use total powerstation to determine rapidly the tilting value of each post, with reference to deviation correcting technology rules, check and whether meet code requirement (specific requirement is in Table 1 rectification criterion of acceptability), if do not met code requirement, need to proceed deviation rectification operation.
2) confirming must, to whole post net fixed support in addition, to prevent that its impact that is subject to follow-up repairerment operation from occurring to incline again after the correction of post net meets code requirement.After completing interim reinforcing support works, need to slow down programming, post net is placed to a period of time, fully discharge residual stress.After post net stabilization, can carry out according to working design the strengthening by reparative method of monolithic architecture, the member of dismounting is temporarily repaired to installation as it is, guarantee to meet " restoring the old as the old " principle of ancient building repair, retain to greatest extent its cultural traits.
Table 1. rectification criterion of acceptability
Claims (8)
1. a resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building, it is characterized in that: comprise casing, support, circular cushion cap, the mechanical arm being formed by armstand and transverse arm, linear displacement amplifying device, the electric winch of being located at box house, auxiliary jack, power jack, universal joint and variable anchor ear; Box house is provided with as assisting jack and power jack that the hydraulic power unit with proportion divider valve of shoring power is provided, proportion divider valve input is connected to hydraulic power unit by petroleum pipeline, proportion divider valve has three outputs, each output all can independently open and close and the same time can only have an output to open, one of them output is connected to the oil cylinder of auxiliary jack by petroleum pipeline, second output is connected to the oil cylinder of power jack by petroleum pipeline; Casing surrounding is rigidly connected with the ground support that lies against ground, and circular cushion cap is installed on casing upper surface and is provided with pivoting support, and pivoting support is connected to motor can rotate by full angle it in horizontal plane; Mechanical arm is welded by real abdomen formula shaped steel, and armstand is fixed on circular cushion cap, and transverse arm one end and armstand are hinged, and auxiliary jack piston top and transverse arm soffit are hinged, shores effect lower cross arm can in vertical plane, freely rotate at auxiliary jack; Linear displacement amplifying device is arranged on transverse arm upper surface, linear displacement amplifying device consists of angle iron frame and the spring, running block and the fixed pulley group that are arranged in order in angle iron frame, and steel strand detour successively and be connected to electric winch after fixed pulley and movable pulley follow-up pulley are drawn; The transverse arm other end and transverse arm coaxial line are installed power jack, and power jack piston top is connected to universal joint one end, and the universal joint other end connects variable anchor ear.
2. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 1, it is characterized in that: described casing one side also connects a rigidity curved bar, the rigidity curved bar other end has variable anchor ear, rigidity curved bar soffit is connected to the piston of jack, and the 3rd output of described proportion divider valve is connected to the oil cylinder of jack by petroleum pipeline.
3. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 2, it is characterized in that: described variable anchor ear is bolted and is formed by two identical semicircle steel members.
4. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 2, it is characterized in that: when described running block displacement is a, described steel strand are by the distance of mobile 7a.
5. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 2, it is characterized in that: described universal joint is formed by connecting by rigidity crossed joint by two identical universal-joint forks.
6. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 1, it is characterized in that: described variable anchor ear is bolted and is formed by two identical semicircle steel members.
7. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 1, it is characterized in that: when described running block displacement is a, described steel strand are by the distance of mobile 7a.
8. resetting means is shored in the stretch-draw of the askew sudden strain of a muscle timber frame of ancient building according to claim 1, it is characterized in that: described universal joint is formed by connecting by rigidity crossed joint by two identical universal-joint forks.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230215.2A CN103982051B (en) | 2014-05-28 | 2014-05-28 | Resetting means is shored in the stretch-draw of ancient building askew sudden strain of a muscle timber frame |
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| CN201410230215.2A CN103982051B (en) | 2014-05-28 | 2014-05-28 | Resetting means is shored in the stretch-draw of ancient building askew sudden strain of a muscle timber frame |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746540A (en) * | 2015-01-28 | 2015-07-01 | 扬州大学 | Timber frame semi-automatic inclination adjustment resetting device |
| CN105317135A (en) * | 2015-10-23 | 2016-02-10 | 西南交通大学 | Friction damper for ancient timber structure tenon-mortise joints |
| CN108726407A (en) * | 2018-08-09 | 2018-11-02 | 石家庄辰启科技有限公司 | Autobalance lifting device |
| CN111480472A (en) * | 2020-03-28 | 2020-08-04 | 无锡中维建筑机械制造有限公司 | Modular pruning equipment |
| CN112144903A (en) * | 2020-08-07 | 2020-12-29 | 北京国文琰园林古建筑工程有限公司 | Correction method for displaced members of mountain surface golden columns and eaves columns integrally |
| CN114263364A (en) * | 2021-12-24 | 2022-04-01 | 武汉华科永信建筑工程有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
| CN115492418A (en) * | 2022-10-12 | 2022-12-20 | 上海建为历保科技股份有限公司 | Correcting process for displaced members |
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| JPH01299963A (en) * | 1988-04-05 | 1989-12-04 | Ortega Beltran Jorge | Method of re-clamping or repairing and reinforcing or load-reducing deformed existing structure |
| CN101054856A (en) * | 2007-05-22 | 2007-10-17 | 佛山市工程承包总公司 | Rehabilitation method for ancient architecture wall |
| CN102191866A (en) * | 2010-03-19 | 2011-09-21 | 上海市第五建筑有限公司 | Device and method for removal construction of vertical posts positioned on lower part of large-span net rack |
| CN101812927B (en) * | 2010-03-26 | 2011-09-28 | 四川电力送变电建设公司 | Hydraulic centralizing system for iron tower |
| CN202706588U (en) * | 2012-05-08 | 2013-01-30 | 吉林省电力有限公司延边供电公司 | Pole straightening device |
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| JPH01299963A (en) * | 1988-04-05 | 1989-12-04 | Ortega Beltran Jorge | Method of re-clamping or repairing and reinforcing or load-reducing deformed existing structure |
| CN101054856A (en) * | 2007-05-22 | 2007-10-17 | 佛山市工程承包总公司 | Rehabilitation method for ancient architecture wall |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746540A (en) * | 2015-01-28 | 2015-07-01 | 扬州大学 | Timber frame semi-automatic inclination adjustment resetting device |
| CN105317135A (en) * | 2015-10-23 | 2016-02-10 | 西南交通大学 | Friction damper for ancient timber structure tenon-mortise joints |
| CN108726407A (en) * | 2018-08-09 | 2018-11-02 | 石家庄辰启科技有限公司 | Autobalance lifting device |
| CN108726407B (en) * | 2018-08-09 | 2024-04-12 | 江西中涛建设工程有限公司 | Automatic balance lifting device |
| CN111480472A (en) * | 2020-03-28 | 2020-08-04 | 无锡中维建筑机械制造有限公司 | Modular pruning equipment |
| CN112144903A (en) * | 2020-08-07 | 2020-12-29 | 北京国文琰园林古建筑工程有限公司 | Correction method for displaced members of mountain surface golden columns and eaves columns integrally |
| CN112144903B (en) * | 2020-08-07 | 2021-11-23 | 北京国文琰园林古建筑工程有限公司 | Correction method for displaced members of mountain surface golden columns and eaves columns integrally |
| CN114263364A (en) * | 2021-12-24 | 2022-04-01 | 武汉华科永信建筑工程有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
| CN114263364B (en) * | 2021-12-24 | 2023-01-31 | 武汉华科永信建筑工程有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
| CN115492418A (en) * | 2022-10-12 | 2022-12-20 | 上海建为历保科技股份有限公司 | Correcting process for displaced members |
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| Publication number | Publication date |
|---|---|
| CN103982051B (en) | 2016-01-20 |
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