CN103850445B - The distortion reset reinforcement means of loft-style timber-framed building - Google Patents
The distortion reset reinforcement means of loft-style timber-framed building Download PDFInfo
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- CN103850445B CN103850445B CN201410089213.6A CN201410089213A CN103850445B CN 103850445 B CN103850445 B CN 103850445B CN 201410089213 A CN201410089213 A CN 201410089213A CN 103850445 B CN103850445 B CN 103850445B
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Abstract
The present invention relates to a kind of distortion reset reinforcement means of loft-style timber-framed building, belong to Traditional Wood framed building Restoration Techniques field, main feature adopts top-La to reset to the loft-style timber-framed building of distortion from inside, have developed match with method shore-tension reset device, effectively can improve the defect of existing outdoor reset technique, the pedestal layer (or floor) utilizing distortion less is as the fixed bearing of resetting means, the floor larger to distortion on it applies internal reset power system and realizes resetting, construction operation is not completely by the restriction of the gentle time condition in the outside place of building, the expense that can save space and the large-scale scaffold expense of erection, external procedure can be avoided the damage of ancient building door and window and eaves, in addition, the internal reset device of employing has had the function of safety supports concurrently, adds the overall security of structure in work progress, also for the Stability Analysis of Structures phase after floor reset provides a reliable maintenance energy system.The present invention improves the level of China's timber frame ancient building renovation technique, and can obtain certain economic benefit.
Description
Technical field
The present invention relates to a kind of distortion reset reinforcement means of loft-style timber-framed building, belong to Traditional Wood framed building Restoration Techniques field.
Technical background
Chinese and that East Asia Region is traditional multilayer loft-style building adopts laminated type timber-frame structure usually, and its agent structure replaces esting by pylon layer and paving as layer and forms, and every one deck is a unitary construction.Component is connected into entirety by nonrigid mortise and tenon node by timber-framed building, and its resistance to deformation rigidity is more weak, corrodes and node easily occurs under earthquake, by force wind action to get loose and the askew sudden strain of a muscle of framework in long-range circumstances; For multilayer loft-style building, the structural strain's of structure is the superposition of stratified deformation substantially.
Famous Wooden Pagoda at Yingxian County is a typical loft-style timber-framed building, and its tower body is replaced to superpose with four blindstorys by five bright layers and forms; Blindstory is made up of the inside and outside post circle being provided with diagonal brace, and the rigidity of structure is larger; Bright layer is only made up of inside and outside post circle, and the rigidity of structure is relatively weak.At long-term wind load with repeatedly under action of strong earthquake, wood pagoda is overall to tilt to north by east, and top layer reaches 454 millimeters relative to the total inclination and offset of bottom; The distortion of wood pagoda mainly occurs in the bright layer of tower body, and wherein, the distortion of the bright layer of the second layer is maximum, and interlayer reverses skew and reaches 126.79 millimeters, and Internal and external cycle 32 posts all have inclination in various degree.At present, the situation of Wooden Pagoda at Yingxian County still worsens in continuation, urgently strengthening by reparative method.
China has the timber frame ancient building of One's name is legion, and mostly there is askew flickering shape in various degree; Carrying out correcting and then reinforcing to the timber frame of askew flickering shape, is China's one section of major tasks that period, ancient building repair was reinforced from now on.Timber frame ancient building is the important cultural heritage of China, and its strengthening by reparative method work need follow historical relic's protection principle, and will ensure to be perfectly safe; For preserving the historical information of ancient building preferably, General Requirements adopts the overall repair mode of " do not fall frame ".Namely, when not tearing timber frame open, making the framework reset of inclination, torsion, then carrying out integral reinforcing.The bodily form of loft-style timber-framed building is tall and big, complex structure, implements " do not fall frame " integral error correcting and position and reinforces, usually set up large-scale field operation stand at building periphery, then the timber frame installing mechanical device ejection or tension deformation makes it reset to it; The operation stand of the construction plant that reset requirement of engineering is comparatively open and enough rigidity, engineering cost is larger; In addition, the connection of outdoor machinery device and timber frame internals is comparatively difficult, need remove part eaves or door and window to meet the requirement of constructing operation, has damage to a certain degree to the outward appearance of ancient building.
Summary of the invention
The object of this invention is to provide a kind of distortion reset reinforcement means of loft-style timber-framed building; solve and existingly set up large-scale field operation stand at periphery; above-mentioned all deficiencies that the timber frame installing mechanical device ejection or tension deformation again makes its repositioning method exist are have and the loft-style timber-framed building of torsional deflection realizes active homing under situation that is that historical relic's protection and structural safety require and that do not limit by outside site condition and reinforces taking into account by the present invention.
The object of the invention is to be achieved through the following technical solutions, a kind of distortion reset reinforcement means of loft-style timber-framed building, is characterized in that, described method adopts top-La to reset to the loft-style timber-framed building of distortion from inside;-tensioning equipment is shored in-La reset the employing of described top; First substructure is reinforced, as the fixed bed applying reset force system; Then arrange between the timber trestle of related floor main body well azimuth and shore-tensioning equipment, the mode circulated by several times applies reset response power to each Pin inclination timber trestle, shore-tensioning equipment makes the timber trestle of distortion return to original vertical position, after floor to be deformed is reset to preposition, keep respectively shoring-the active force of tensioning equipment, adopt timber wedge and cushion block to position reinforcing to bean column node and suspension column respectively, stablize overall performance with the reset strengthening structure.
The axis of described timber trestle and floor main body well azimuth inconsistent time, arrange between the timber trestle of the adjacent both direction of each controlling position simultaneously and shore-tensioning equipment, shore-tensioning equipment be arranged on distortion timber trestle between, column cap can be out of shape to both sides and apply the power of shoring and stretching force respectively.
Describedly to shore-tensioning equipment according to the instructions for use of building, can lay under construction for a long time, as the attached reinforcing body of timber frame; Also can as temperature pier body, at a longer Stability Analysis of Structures observation after date, progressively loosening device is to final detaching device.
Described each reset amount is no more than 1/3 of this timber trestle's target reset value.
The mode of described circulation is from maximum timber trestle of tilting, applies the power of shoring and stretching force respectively successively to all the other inclination timber trestles.
The mode of described circulation after cycle reset completes each time, interval one day to increase the deformation stability of timber trestle.
Describedly to shore-tensioning equipment is made up of jack strut, two secondary flower basket bolt drag-lines and node steel hoop; In jack strut, steel pipe strut is used for the column cap that support top tilts inside timber trestle; Flower basket bolt drag-line is had the reinforcing rib meter that the indented bars of crotch and threaded one end reinforcing bar are nested with formed by flower basket bolt, the flower basket bolt two ends termination that spins; Two secondary flower basket bolt drag-lines are used for the column cap that tilts outside timber trestle of stretch-draw, and node steel hoop is used for the connection of jack strut, flower basket bolt drag-line and timber trestle.
Described node steel hoop is made up of semicircle coating steel pipe, stainless steel hinge and bolt and nut connector, and the side of the circular coating steel pipe of two halves is welded with symmetrical ring-bolt.
Described node steel hoop is made up of semicircle coating steel pipe, stainless steel hinge and bolt and nut connector, the side of a wherein semicircle coating steel pipe is welded with the stay fastener of steel pipe strut in the hollow steel pipe pedestal of corresponding jack or corresponding jack strut.
The present invention is applicable to the construction of distortion timber frame internal reset, have developed match with method shore-tension reset device, effectively can improve the defect of existing outdoor reset technique, the pedestal layer (or floor) utilizing distortion less is as the fixed bearing of resetting means, the floor larger to distortion on it applies internal reset power system and realizes resetting, construction operation is not completely by the restriction of the gentle time condition in the outside place of building, the expense that can save space and the large-scale scaffold expense of erection, can avoid external procedure to the damage of ancient building door and window and eaves; In addition, the internal reset device of employing has had the function of safety supports concurrently, adds the overall security of structure in work progress, also for the Stability Analysis of Structures phase after floor reset provides a reliable maintenance energy system.The present invention improves the level of China's timber frame ancient building renovation technique, and can obtain certain economic benefit.
Accompanying drawing explanation
Fig. 1 shores-tensioning equipment, the cross sectional arrangement schematic diagram of construction safety bracing members frame in reset floor in the present invention;
In figure, 1-1 flower basket bolt drag-line, 1-2 jack strut, 2 construction safety bracing members framves, A, B, C, D, E, F represent corresponding pin, and arrow represents incline direction;
Fig. 2 is the present invention is that underlying structure layer reinforces schematic diagram;
In figure, 3 reinforce support, 4 steel plate hoops;
Fig. 3 is the installation drawing of construction safety bracing members frame between timber trestle in the present invention;
In figure, 2 construction safety bracing members framves, 4 steel plate hoops, 6 ground cloth-wrappers, 7 flexible cushions, 8 inclination pins, 9 wooden frames (a tree, used in making timber for boats), 10 sets of brackets on top of the columns, 11 spiral height adjusters;
Fig. 4 shores the-installation enlarged diagram of tensioning equipment between timber trestle in the present invention;
In figure, 4 steel plate hoops, 5-1,5-2 node steel hoop, 5-3,5-4 node steel hoop, 6 ground cloth-wrappers, 8 inclination pins, 9 wooden frames (a tree, used in making timber for boats), 10 sets of brackets on top of the columns, 14 ring-bolts, 17 steel pipe fixtures, 18 hollow steel pipe pedestals, 19 flower basket bolts, 20 reinforcing rib meters, 21 jack, 22 steel pipe struts, 23 indented barss;
Fig. 5 is the main TV structure schematic diagram of interior joint steel hoop 5-1 of the present invention;
Fig. 6 is the plan structure schematic diagram of Fig. 5;
In figure, 12 semicircle coating steel pipes, 13 stainless steel hinges, 14 ring-bolts, 15 weld seams, 16 bolt and nut connectors;
Fig. 7 is the main TV structure schematic diagram of interior joint steel hoop 5-3 of the present invention;
Fig. 8 is the plan structure schematic diagram of Fig. 7;
In figure, 12 semicircle coating steel pipes, 13 stainless steel hinges, 15 weld seams, 16 screw bolt and nut links, 17 stay fastener;
Fig. 9 is the main TV structure schematic diagram of interior joint steel hoop 5-4 of the present invention;
Figure 10 is the plan structure schematic diagram of Fig. 9;
In figure, 12 semicircle coating steel pipes, 13 stainless steel hinges, 15 weld seams, 16 screw bolt and nut links, 18 hollow steel pipe pedestals;
Figure 11 is jack, jack strut and flower basket bolt stayed structure schematic diagram;
In figure, 1-1 flower basket bolt drag-line, 1-2 jack strut, 19 flower basket bolts, 20 reinforcing rib meters, 21 jack, 22 steel pipe struts, 23 indented barss.
Detailed description of the invention
Further illustrate the present invention in conjunction with the accompanying drawings and embodiments, as shown in Figure 1, the distortion for the timber-framed building of multilayer loft-style resets, and should successively reset construction from bottom to top; Also for main distortion floor, reset construction can directly be carried out.For Wooden Pagoda at Yingxian County, getting the maximum bright layer of the second layer of distortion is reset floor, adopts the concrete steps of this method reset construction as follows:
(1) detection of reset floor is reinforced, and measure the bulk deformation value of reset story post circle, emphasis determines the sidesway value of each post, detects damage location and the degree of injury of beam column component, reinforces the serious component of damage or replaces, to ensure the safety in construction.
(2)-the laying of tensioning equipment is shored, as shown in Fig. 1,3,4.According to the deformation behaviour of floor, the maximum a few Pin timber trestles of sidesway are selected to be controlling position, by shoring-tensioning equipment is arranged between the axis of two pins of controlling position, as A, B, C, D in Fig. 1.Shore-the orientation of tensioning equipment, consistent with floor main body well azimuth as far as possible; For the axis of timber trestle and the inconsistent situation of floor main body well azimuth, can lay between the pin of the adjacent both direction of each controlling position simultaneously shore-tensioning equipment, also determine multiplely to shore-overall Reasonable Arrangement the position of tensioning equipment by mechanical analysis.
(3) construction reinforcement of underlying structure layer, as shown in Figure 2.To the underlying structure layer of reset floor, reinforce support 3 carry out construction reinforcement as this example for the second layer blindstory under it adopts, emphasis is reinforced and is shored-post coxopodite the point of tensioning equipment installation position, and the construction for reset floor provides reliable fixed constraint.Dismounting after completing for ease of reset construction, reinforcing support 3 can section steel manufacture with bolts.
(4) suspension column of reset pylon is reinforced, as shown in Figure 2,3, 4.The reset construction of inclination pin 8 take suspension column as fixed point, by shoring-and tensioning equipment makes the column cap of inclination reset.For the situation that suspension column is connected with ground cloth-wrapper 6 on-fixed, steel plate hoop 4 pairs of suspension columns should be adopted to reinforce.
(5) construction safety supports and arranges, as shown in Figure 1,3.Between two pins that reset Construction of Inclined pin 8 is adjacent, bracing members frame 2 is set, for work progress provides safety assurance.Bracing members frame 2 is an overall portal frame structure, and as shown in Figure 3, two vertical support body lower ends of bracing members frame 2 arrange spiral arrangement for adjusting height 11 respectively, is convenient to installation and removal; The little flexible cushion of frictional force 7 is set between the horizontal support body and floor wooden frame (a tree, used in making timber for boats) 9 of bracing members frame 2 to avoid the horizontal movement hindering floor to reset.
(6) installation of node steel hoop, as shown in Figure 4.-the pin of tensioning equipment is shored to installing, at column cap and suspension column place, node steel hoop 5-1,5-2 or 5-3,5-4 need be installed,-tensioning equipment is shored in order to connect, and prevent the stressed damage of pin, node steel hoop 5-1,5-2,5-3,5-4 are made up of semicircle coating steel pipe 12 and stainless steel hinge 13, as shown in Fig. 5,7,9, be convenient to installation and removal; Each group shores-and tensioning equipment is furnished with flower basket bolt drag-line 1-1 connected node steel hoop two 5-1,5-2, jack strut 1-2 stationary nodes steel hoop two 5-3,5-4; The both sides of flower basket bolt drag-line 1-1 connected node steel hoop 5-1,5-2 are all welded with ring-bolt 14, and the crotch for flower basket bolt two ends connects; Jack strut 1-2 stationary nodes steel hoop 5-3 is welded with stay fastener 17 for joint steel pipe strut 22, and jack strut 1-2 stationary nodes steel hoop 5-4 is welded with hollow steel pipe pedestal 18 for fixing jack 21.The internal diameter size of each node steel hoop is consistent with institute's banded column head or suspension column outside dimension, to ensure close contact.Before installation cuff, first column cap, suspension column carbon cloth are wrapped up, to strengthen the supporting capacity of contact surface.
(7)-the installation of tensioning equipment is shored, as shown in Fig. 1,4,11.Each group shores-and tensioning equipment is made up of a jack strut 1-2 and two flower basket bolt drag-line 1-1; Jack strut 1-2 is socketed to form by jack 21 and steel pipe strut 22, flower basket bolt drag-line 1-1 is welded with reinforcing rib meter 20 is formed by flower basket bolt 19, indented bars 23, and reinforcing rib meter 20 is existing products, for measuring the stress with control member, a kind of sensor, as shown in figure 11.Jack strut 1-2 is along intercolumniation axis arranged, and flower basket bolt drag-line 1-2 is arranged on the both sides of intercolumniation.Shore-drawing device should have reliable connection with node steel hoop, and jack strut 1-2 and flower basket bolt drag-line 1-1 need require leave enough operational strokes according to reset.
(8) operation of floor reset.Adopt the mode of several times circulation to apply reset response power to each Pin inclination timber trestle, make it progressively return to precalculated position and drive floor integral reset.The order of each cycle reset can be determined according to the tilting value of each Pin pylon, resets successively from big to small.The present embodiment adopts three modes circulated, and the classification of reset response Etech applies, and each reset amount is no more than 1/3 of this pylon target reset value.Consider the elastical retraction performance of timber and shore-the stress relaxation of tensioning equipment, the 1.05-1.10 of desirable each pylon deformation values is doubly as its target reset value.
Concrete operations mode is as follows: first select a maximum Pin pylon construction, apply to shore power, side column cap is resetted and reaches 1/3 target reset value with jack strut 1-2 to timber trestle; Apply stretching force with both sides flower basket bolt drag-line 1-1 again, opposite side column cap is resetted and reaches 1/3 target reset value.Then, apply the power of shoring and stretching force respectively to all the other inclination timber trestles successively, complete whole inclination timber trestle 1/3 resets.After cycle reset completes each time, interval one day to increase the deformation stability of pylon, then by the cycle reset operation that same mode is carried out next time, until whole pylon returns to preposition.
(9) floor reset after fastening.After floor to be deformed is reset to preposition, keep respectively shoring-the active force of tensioning equipment, adopt timber wedge and cushion block to position reinforcing to bean column node and suspension column respectively, stablize overall performance with the reset strengthening structure.
(10) dismounting of construction safety support.After strengthening by reparative method is carried out to the beam column component of reset floor and node, dismountable whole construction safety bracing members frame.
(11)-the post-processed of tensioning equipment is shored.Keep wood pagoda reset stable state 2-3, under the condition strengthening safety observation and monitoring, progressively laxly to shore-the active force of tensioning equipment, until removal shores-tensioning equipment completely.When the inner usage space of floor and sightseeing conditions permit, also part can be shored-tensioning equipment in addition wooden decoration, the supplemental support as floor structure retains between floors for a long time, to improve integral rigidity and antidetonation, the wind resistance of building.
Claims (8)
1. a distortion reset reinforcement means for loft-style timber-framed building, is characterized in that, described method adopts top-La to reset to the loft-style timber-framed building of distortion from inside; What described top-La reset employing was made up of jack strut, two secondary flower basket bolt drag-lines and node steel hoop shores-tensioning equipment; First substructure is reinforced, as the fixed bed applying reset force system; Then arrange between the timber trestle of related floor main body well azimuth and shore-tensioning equipment, the mode circulated by several times and control each reset amount applies reset response power to each Pin inclination timber trestle, the timber trestle of distortion is made progressively to return to original vertical position, after floor to be deformed is reset to preposition, keep respectively shoring-the active force of tensioning equipment, adopt timber wedge and cushion block to position reinforcing to bean column node and suspension column respectively, stablize overall performance with the reset strengthening structure.
2. the distortion reset reinforcement means of loft-style timber-framed building according to claim 1, it is characterized in that, the axis of described timber trestle and floor main body well azimuth inconsistent time, arrange between the timber trestle of the adjacent both direction of each controlling position simultaneously and shore-tensioning equipment, shore-tensioning equipment is arranged between distortion timber trestle, applies the power of shoring and stretching force respectively to both sides distortion column cap.
3. the distortion reset reinforcement means of loft-style timber-framed building according to claim 1, it is characterized in that, describedly to shore-tensioning equipment lays under construction for a long time according to the instructions for use of building, as the attached reinforcing body of timber frame or as temperature pier body, at a longer Stability Analysis of Structures observation after date, progressively loosening device is to final detaching device.
4. the distortion reset reinforcement means of loft-style timber-framed building according to claim 1, is characterized in that, described each reset amount is no more than 1/3 of this timber trestle's target reset value.
5. the distortion reset reinforcement means of loft-style timber-framed building according to claim 1, is characterized in that, the mode of described circulation is from maximum timber trestle of tilting, applies the power of shoring and stretching force respectively successively to all the other inclination timber trestles.
6. the distortion reset reinforcement means of loft-style timber-framed building according to claim 1, is characterized in that, the mode of described circulation after cycle reset completes each time, interval one day to increase the deformation stability of timber trestle.
7. the distortion reset reinforcement means of loft-style timber-framed building according to claim 1, is characterized in that, described in shore-tensioning equipment in steel pipe strut tilts inside timber trestle for support top in jack strut column cap; Flower basket bolt drag-line is had the reinforcing rib meter that the indented bars of crotch and threaded one end reinforcing bar are nested with formed by flower basket bolt, the flower basket bolt two ends termination that spins; Two secondary flower basket bolt drag-lines are used for the column cap that tilts outside timber trestle of stretch-draw, and node steel hoop is used for the connection of jack strut, flower basket bolt drag-line and timber trestle.
8. the distortion reset reinforcement means of loft-style timber-framed building according to claim 7, it is characterized in that, described node steel hoop is made up of semicircle coating steel pipe, stainless steel hinge and bolt and nut connector, and the side of the circular coating steel pipe of two halves is welded with symmetrical ring-bolt.
9. the distortion reset reinforcement means of loft-style timber-framed building according to claim 7, it is characterized in that, described node steel hoop is made up of semicircle coating steel pipe, stainless steel hinge and bolt and nut connector, the side of a wherein semicircle coating steel pipe is welded with the stay fastener of steel pipe strut in the hollow steel pipe pedestal of corresponding jack or corresponding jack strut.
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| TWI627334B (en) * | 2014-12-26 | 2018-06-21 | 財團法人船舶暨海洋產業研發中心 | System for rotatably fastening a tower and operating method thereof |
| CN104746540B (en) * | 2015-01-28 | 2016-11-30 | 扬州大学 | A kind of gallows timber semi-automatic deviation rectification device |
| CN105672688B (en) * | 2016-02-16 | 2017-12-08 | 福州大学 | The prestressing force intensifier and its construction method of a kind of continued access timber structure |
| CN105525766B (en) * | 2016-02-16 | 2018-01-12 | 福州大学 | The prestressing force intensifier and its manufacture method of a kind of continued access timber structure |
| CN106767685B (en) * | 2016-12-30 | 2023-09-01 | 北京工业大学 | Be used for ancient building timber structure preventative protection device |
| CN108661344B (en) * | 2018-04-25 | 2020-12-18 | 罗文� | Protection and reinforcement device for wooden members of ancient buildings |
| CN108756281B (en) * | 2018-04-25 | 2020-12-18 | 温州职业技术学院 | Protection and reinforcement device for wooden members of ancient buildings |
| CN108534927A (en) * | 2018-05-09 | 2018-09-14 | 华中科技大学 | A kind of building structure, construction temporary structure and construction equipment integral firmness monitoring method |
| CN111852069B (en) * | 2020-08-20 | 2024-06-04 | 西安建筑科技大学 | Concealed self-resetting energy consumption connection node and method for bracket arch cornice of clear type column cap department |
| CN114658248B (en) * | 2022-02-25 | 2024-02-02 | 兰州理工大学 | Method for correcting inclination of local layer of mortise and tenon double-cylinder tower structure |
| 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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