CN101476397A - Integral jacking method for steel roof frame and concrete column articulated factory house cover - Google Patents
Integral jacking method for steel roof frame and concrete column articulated factory house cover Download PDFInfo
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- CN101476397A CN101476397A CNA2009100425000A CN200910042500A CN101476397A CN 101476397 A CN101476397 A CN 101476397A CN A2009100425000 A CNA2009100425000 A CN A2009100425000A CN 200910042500 A CN200910042500 A CN 200910042500A CN 101476397 A CN101476397 A CN 101476397A
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Abstract
The invention discloses a method for integrally jacking a factory building roof formed by hinging a steel roof truss and concrete columns. The method comprises the following steps: using the concrete columns of the factory building as jacking supporting members, and using corbels welded on the jacking supporting members as jacking supporting points; making use of a jacking device and a force transmission beam assembly which are placed on the corbels as a force application mechanism and a force transmission mechanism respectively so that the jacking force is transferred to a jacking member connected with the force transmission beam assembly; then jacking the factory building roof through the jacking member until the factory building roof reaches the required height; and finally, fixedly connecting the superposed parts of the bottom of the jacking member and the concrete columns to finish the jacking process. The jacking method has the advantages of simple construction process, short construction period, good safety, small investment, and the like.
Description
Technical field
The invention belongs to the building reconstruction technical field, relate in particular to the job practices that a kind of steel roof truss and concrete column articulated factory building are increased.
Background technology
Factory building for steel roof truss and concrete column articulated form is increased transformation, and existing method has two kinds.A kind of is dismounting method, promptly earlier former roof system is removed, and then the concrete post is increased the new roof system of reforming on the concrete post of increasing again.The shortcoming of this method is that investment is big, long in time limit, and need remove equipment and structure in the factory building.Another kind is some integral jacking roof methods, this method is to build earlier the jacking supporting member in factory building, uses jack jacking steel roof truss then on supporting member, thereafter capital is increased, again steel roof truss is fallen back to the capital of increasing, remove the jacking supporting member at last.The shortcoming one of this technology is to build jacking temporary support member, and the expense material is taken a lot of work; The 2nd, owing to be subjected to the little restriction of jack stroke, after jack is whenever finished a stroke jacking, need the roof truss base is filled up temporarily, after moving the height of a stroke on the jack, carry out the jacking of next stroke again, move jack on often so just needing, constantly change jacking operation place, be not easy to implement jacking.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, steel roof truss that provide that a kind of construction technology is simple, the construction period is short, safety is good, investment is little and concrete column articulated factory building integral jacking roof method.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind of steel roof truss and concrete column articulated factory building integral jacking roof method, this method is that concrete post with factory building self is as the jacking supporting member, and with the bracket that welds on the jacking supporting member as the jacking supporting-point, utilize the lift-up device of placing on the bracket as force application part, with the transfer beam assembly of lift-up device top as force transferring part, top lift is transmitted to the jacking member that is connected with the transfer beam assembly with this, lifting by the jacking member comes jacking factory building roof system, reach the requirement height until roof system, at last that jacking member bottom and concrete post superposed part is affixed, finish the jacking process.Generally speaking, there are many concrete posts a factory building roof system below as the jacking supporting member, in the periphery of every concrete post described jacking member, transfer beam assembly and lift-up device etc. is installed all, and every concrete post is as a Jacking point, in the jacking process, each lift-up device should guarantee synchronization of jacking up.
The factory building integral jacking roof method of technique scheme may further comprise the steps:
(1) installation of jacking member: earlier plant the bar planting angle steel at four angles of periphery, concrete post top, the bar planting angle steel generally is the periphery of implanting the concrete post by the bar planting bolt, and the bar planting bolt is fixed with the welding of bar planting angle steel; Again at the peripheral suit one jacking member of bar planting angle steel, the laced of battened compression member that described jacking member can be made up of side guide, one side of side guide is parallel with one side of bar planting angle steel and leave gap about 10mm, the original deflection of concrete post can be adjusted so on the one hand, the frictional force between two angle steel can be avoided or weaken on the other hand; The another side of side guide offers the screw that two rows vertically distribute, so that be connected and fixed the transfer beam assembly that is provided with in the subsequent step with securing members such as bolts; The top of the top of described jacking member and steel roof truss bearing is affixed;
(2) assembling of transfer beam assembly: one transfer beam assembly is installed again in the periphery of described jacking member, this transfer beam assembly can include a pair of top rail, a pair of tie-beam and a pair of back timber that is subjected to from top to bottom successively, top rail and tie-beam, tie-beam and be subjected to back timber all to be up and down interlaced arrangement and affixed with securing member (common connecting bolt gets final product) in the intersection, described top rail and tie-beam, tie-beam and be subjected to preferably to be between the back timber interlaced arrangement up and down (this transfer beam assembly also can be selected other similar structures for use) of " well " font; When the transfer beam assembly is installed, cooperate the screw of offering on the side guide with securing member (preferred friction-type high-strength bolt) earlier, will top rail and side guide twist at the beginning of dividing and tighten fixing (the frictional force power transmission that produces between top rail and the side guide) stubborn twice eventually, then successively with top rail and tie-beam, tie-beam and be subjected to back timber affixed;
(3) installation of lift-up device: on the bar planting angle steel of (being the described below, back timber middle part that is subjected to) concrete post both sides below the described transfer beam assembly, be symmetrically welded a pair of bracket, one lift-up device is set on bracket, between lift-up device and described jacking member, be provided with can with the jacking member with the affixed lower transverse beam of securing member, this lower transverse beam is the girder steel that offers on it with the corresponding screw of side guide, and it is placed on the bracket; The edge of bracket can an affixed scale (position of scale can depend on the circumstances), in order to control the top lifting height of each Jacking point, the synchronous lifting of each lift-up device when guaranteeing jacking;
(4) jacking: at first finely tune lift-up device and make it slightly stressed, then in the bottom of steel roof truss bearing along transversely cutting, with lift-up device jacking transfer beam assembly, after lift-up device is finished a stroke with securing member (friction-type high-strength bolt for example, by the frictional force power transmission that produces between the two) side guide of lower transverse beam and jacking member is affixed, unload the securing member of affixed top rail and side guide and adjust back lift-up device, the transfer beam assembly falls after rise with lift-up device; With the top rail of the affixed again transfer beam assembly of securing member and the side guide of jacking member, unload the securing member between affixed lower transverse beam and the side guide again, utilize lift-up device to carry out the jacking second time; Repeat this step until meeting the requirements of top lifting height;
(5) subsequent treatment: at last that bar planting angle steel superposed part on described jacking member bottom and the concrete post (being side guide and bar planting angle steel superposed part) is affixed, remove other component, jacking is finished.
In the technique scheme, described lift-up device preferably adopts spiral jack, and is safer when operating like this, can not fall after rise voluntarily because in a single day spiral jack breaks down.
In the above-mentioned jacking process, the bang path of steel roof truss gravity is: steel roof truss → roof truss bearing → jacking member → transfer beam assembly → lift-up device → bracket → concrete post.
Because technical scheme of the present invention is specially at the integral jacking roof method of steel roof truss and concrete column articulated plant designing, therefore the jacking member can be directly and the steel roof truss bearing affixed, install very convenient, and off-position is in steel roof truss bearing bottom, rather than the concrete post, cut off also relatively easily operation of operation; All having done to optimize and revise and design at the characteristics of steel roof truss and concrete column articulated factory building at the textural of whole jacking member and transfer beam assembly, is a kind of job practices that can be widely used in steel roof truss and concrete column articulated factory building integral jacking roof technical field.Compared with prior art, advantage of the present invention also is embodied in the following aspects: at first utilize the original concrete post of factory building as supporting member, do not need to build in addition the jacking supporting member, the material-saving saving of labor had both saved investment, had shortened the duration again; When lift-up device is finished a jacking stroke, high-strength bolt by the upper and lower crossbeam of dismounting, can realize the switching of upper and lower crossbeam stress, thereby being replaced in the permanent position, lift-up device realizes falling after rise and the jacking operation, it is not only convenient and swift but also safe and reliable to construct, and has improved efficiency of construction greatly; After the jacking process puts in place, the jacking member directly with the concrete post on the bar planting angle steel implanted be welded and be the part of increasing of concrete post, so both exempted the loaded down with trivial details operation of dismounting jacking member, saved the operation of increasing of concrete post again, kill two birds with one stone; In addition, each Jacking point is provided with two lift-up device in the technical scheme of the present invention, and one of them safety effect of having held concurrently does not need to be provided with in addition safeties again.
Description of drawings
Fig. 1 is the jacking original state schematic diagram of the embodiment of the invention;
Fig. 2 is the sectional view of Fig. 1 at the A-A place;
Fig. 3 is that the B of Fig. 1 is to view;
Fig. 4 is the view when jack falls after rise in the embodiment of the invention jacking process.
Marginal data:
1, concrete post 11, bar planting bolt
12, bar planting angle steel 13, steel roof truss
2, jacking member 21, side guide
22, top cross-bar 23, steel roof truss bearing
24, screw 3, transfer beam assembly
31, top rail 32, tie-beam
33, be subjected to back timber 34, friction-type high-strength bolt
35, connecting bolt 4, bracket
41, scale 5, jack
6, lower transverse beam
The specific embodiment
A certain steel roof truss and concrete column articulated factory building, 18.9 meters of the original clear height of this factory building, the existing requirement brought up to 19.95 meters, and hoisting depth is 1.05 meters.This factory building is a concrete post bent structure, and concrete post post is apart from 6 meters, and concrete post cross section is a rectangle, 36 meters of steel roof truss spans, and 3780 tons of roof system gross weights, 234 meters of factory building length overalls have two shrinkage joint.We disconnect at the place, shrinkage joint, divide three unit jackings with factory building, each unit jacking 14 Pin roof truss, and the jacking weight of each Jacking point is 45 tons, each Jacking point is implemented jacking with two 50 tons spiral jack.The jacking process of each unit is divided and is finished for five times, and the top lifting height of first, second, third and fourth time is 0.205 meter, 0.23 meter of the 5th jacking, five times when shared about ten hours.As Fig. 1～shown in Figure 4, the integral jacking process of present embodiment steel roof truss 13 is as follows in the concrete implementation step of each Jacking point:
1, the installation of jacking member: at first use bar planting bolt 11 (M30 * 240) four jiaos of concrete post 1 top implant four take root in muscle angle steel 12 (
200 * 18, length is 2.25m), bar planting bolt 11 and 12 welding of bar planting angle steel, bar planting angle steel 12 can be equivalent to the built-in fitting of concrete post 1; Peripheral suit one jacking member 2 on concrete post 1 top, the top welding of the top of jacking member 2 and steel roof truss bearing 23;
The main body of above-mentioned jacking member 2 is a laced of battened compression member, this steel column mainly by four side guides 21 of vertical direction (
200 * 18) form, four side guides are matrix form to be arranged, and is welded into a whole by four top cross-bar 22; The right angle opening of side guide 21 is outside, one side parallel (leaving the gap of 10mm) of pre-buried bar planting angle steel 12 on one bar limit and the concrete post 1, offer the screw 24 that two rows vertically distribute on another limit, so that be connected and fixed the transfer beam assembly 3 that is provided with in the subsequent step.
2, the assembling of transfer beam assembly: a transfer beam assembly 3 is installed in the periphery of jacking member 2, this transfer beam assembly 3 comprises a pair of top rail 31 (materials for [36c channel-section steel), a pair of tie-beam 32 (materials for [30c channel-section steel) and a pair of back timber 33 (materials are the I25b i iron) that is subjected to from top to bottom successively, top rail 31 and tie-beam 32 " well " font of staggered up and down vertical being is also affixed mutually, tie-beam 32 be subjected to back timber 33 " well " font of staggered up and down vertical being also affixed mutually;
The mounting method of transfer beam assembly 3 is: the screw that at first utilizes friction-type high-strength bolt 34 (M24 * 110,10.9 grade) to cooperate to offer on top rail and the side guide is affixed with four side guides 21 of jacking member 2 with two top rails 31; Use then connecting bolt 35 (M16 * 60, plain bolt) successively with top rail 31 with tie-beam 32, tie-beam 32 and be subjected to back timber 33 affixed.
3, the installation of lift-up device: be subjected to be symmetrically welded a pair of bracket 4 (steel) on the bar planting angle steel 12 of concrete post both sides under back timber 33 middle parts two; At bracket 4 and be subjected between the back timber 33 to place jack 5, a pair of lower transverse beam 6 is set on the bracket 4 between jack 5 and the jacking member 2 again, offer on the lower transverse beam 6 and side guide 21 corresponding screws 24, and contact with side guide 21; A scale 41 on the edge joint weld of a bracket 4 in order to control the top lifting height of each Jacking point, guarantees to promote synchronously therein;
Jack 5 is to adopt spiral jack, and is safer when operating like this, can not fall after rise voluntarily because in a single day spiral jack breaks down; The quantity of jack 5 is two, but rated load weight is only pressed a calculating, and another plays safety effect; In addition, two jack operate lighter than one.
4, jacking: at first finely tune jack 5 and make it slightly stressed, cut off at l-l place, the bottom of steel roof truss bearing 23 then; Shake jack 5 beginning jacking steel roof trusses 13, after jack is finished 0.205 meter of a stroke, cooperate the screw of offering on lower transverse beam and the side guide that lower transverse beam 6 is affixed with the side guide 21 of jacking member 2 with friction-type high-strength bolt 34, unload the friction-type high-strength bolt 34 of affixed top rail 31 and side guide 21 again, fall jack 5 after rise to initial position, whole transfer beam assembly 3 also falls thereupon simultaneously; And then with friction-type high-strength bolt 34 that top rail 31 and side guide 21 is affixed, unload the friction-type high-strength bolt 34 of affixed lower transverse beam 6 and side guide 21, shake jack 5 and carry out the jacking second time; The process that repeats this step is until meeting the requirements of 1.05 meters of top lifting heights.
5, subsequent treatment: the side guide 21 and bar planting angle steel 12 superposed part of concrete post 1 of jacking member 2 are welded, dismantle component such as transfer beam assembly and lift-up device at last, jacking is finished.
One command signal system (generally comprising public address system and lamp system) can be set in above-mentioned jacking process,, guarantee the synchronous of jacking process so that exchange information at any time between each Jacking point and the commander in chief.
Claims (9)
1, a kind of steel roof truss and concrete column articulated factory building integral jacking roof method, this method is that concrete post with factory building self is as the jacking supporting member, and with the bracket that welds on the jacking supporting member as the jacking supporting-point, utilize the lift-up device of placing on the bracket as force application part, with the transfer beam assembly of lift-up device top as force transferring part, top lift is transmitted to the jacking member that is connected with the transfer beam assembly with this, lifting by the jacking member comes jacking factory building roof system again, meet the requirements of height until the factory building roof system, at last that jacking member bottom is affixed with concrete post superposed part, finish the jacking process.
2, factory building integral jacking roof method according to claim 1 may further comprise the steps:
(1) the jacking member is installed: plant the bar planting angle steel at four angles of periphery, concrete post top earlier, again at the peripheral suit one jacking member of bar planting angle steel, that the top of the top of jacking member and factory building steel roof truss bearing is affixed;
(2) assembling transfer beam assembly: a transfer beam assembly is installed in the periphery of described jacking member, transfer beam assembly and described jacking member is affixed during installation with securing member;
(3) lift-up device is installed: on the bar planting angle steel of concrete post both sides below the described transfer beam assembly, be symmetrically welded a pair of bracket, one lift-up device is set on bracket, between lift-up device and described jacking member, be provided with can with the jacking member with the affixed lower transverse beam of securing member;
(4) jacking: at first finely tune lift-up device and make it stressed, then in the bottom of steel roof truss bearing along transversely cutting, with lift-up device jacking transfer beam assembly the factory building roof system is risen, it is with securing member that lower transverse beam and jacking member is affixed after lift-up device is finished a stroke, unload the securing member of affixed transfer beam assembly and jacking member, and the readjustment lift-up device, the transfer beam assembly falls after rise with lift-up device; Again with affixed again transfer beam assembly of securing member and jacking member, and unload the securing member of affixed lower transverse beam and jacking member, utilize lift-up device to carry out the jacking second time; Repeat this step until meeting the requirements of top lifting height;
(5) subsequent treatment: at last that bar planting angle steel superposed part on described jacking member bottom and the concrete post is affixed, dismounting transfer beam assembly and lift-up device, jacking is finished.
3, factory building integral jacking roof method according to claim 2, it is characterized in that the laced of battened compression member that described jacking member is made up of four side guides, one side of side guide is parallel with one side of bar planting angle steel, and the another side of side guide offers the screw that two rows vertically distribute; Described transfer beam assembly is to cooperate the screw of offering on the side guide that itself and described jacking member is affixed by the friction-type high-strength bolt; Described lower transverse beam is to cooperate the screw of offering on the side guide that itself and described jacking member is affixed by the friction-type high-strength bolt.
4, factory building integral jacking roof method according to claim 3, it is characterized in that described transfer beam assembly comprises a pair of top rail, a pair of tie-beam and a pair of back timber that is subjected to from top to bottom successively, top rail and tie-beam, tie-beam and be subjected to back timber all to be up and down interlaced arrangement and affixed with bolt in the intersection; When the transfer beam assembly is installed, be with the screw of offering on the friction-type high-strength bolt cooperation side guide that top rail and side guide is affixed earlier, then with bolt successively with top rail and tie-beam, tie-beam and be subjected to back timber affixed.
5, factory building integral jacking roof method according to claim 4 is characterized in that in the installation process of described jacking member, and the bar planting angle steel is four angles of implanting concrete post periphery by the bar planting bolt, and the bar planting bolt is fixed with the welding of bar planting angle steel.
6, factory building integral jacking roof method according to claim 5, it is characterized in that in the described subsequent processes that jacking member and bar planting angle steel superposed part are affixed to be meant that side guide and bar planting angle steel superposed part with described jacking member are welded into a whole.
7, factory building integral jacking roof method according to claim 6 is characterized in that in the assembling process of described transfer beam assembly, top rail and tie-beam, tie-beam and all be interspersed up and down by back timber to be " well " font.
8, factory building integral jacking roof method according to claim 6 is characterized in that described lift-up device is a jack.
9, factory building integral jacking roof method according to claim 6 is characterized in that each Jacking point at the factory building roof system respectively is provided with the scale of an indication top lifting height.
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| CN2009100425000A CN101476397B (en) | 2009-01-15 | 2009-01-15 | Integral jacking method for steel roof frame and concrete column articulated factory house cover |
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| CN2009100425000A CN101476397B (en) | 2009-01-15 | 2009-01-15 | Integral jacking method for steel roof frame and concrete column articulated factory house cover |
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| CN101476397B CN101476397B (en) | 2010-09-29 |
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| CN102277980A (en) * | 2011-05-06 | 2011-12-14 | 河海大学 | Device for integrally jacking roof of single-layer industrial factory building and construction method thereof |
| CN101633483B (en) * | 2009-08-13 | 2012-01-11 | 上海市第一建筑有限公司 | Integral lifting apparatus for steel structure net rack |
| CN103015743A (en) * | 2012-12-01 | 2013-04-03 | 中国建筑第七工程局有限公司 | Steel joist column-pulling construction method |
| CN103572837A (en) * | 2012-07-30 | 2014-02-12 | 上海天演建筑物移位工程有限公司 | Building jacking system and jacking method |
| CN103669576A (en) * | 2013-11-18 | 2014-03-26 | 中色十二冶金建设有限公司 | Integral jacking construction device and method for steel structure workshop |
| CN103696494A (en) * | 2013-12-11 | 2014-04-02 | 中冶天工上海十三冶建设有限公司 | Computer control hydraulic synchronous hoisting construction method for complex space truss structure |
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| CN104878838A (en) * | 2015-03-24 | 2015-09-02 | 刘贻鹏 | Construction method of supporting-to-lifting reinforced concrete building |
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| CN101633483B (en) * | 2009-08-13 | 2012-01-11 | 上海市第一建筑有限公司 | Integral lifting apparatus for steel structure net rack |
| CN102277980A (en) * | 2011-05-06 | 2011-12-14 | 河海大学 | Device for integrally jacking roof of single-layer industrial factory building and construction method thereof |
| CN103572837B (en) * | 2012-07-30 | 2016-08-10 | 上海天演建筑物移位工程有限公司 | A kind of building jacking method |
| CN103572837A (en) * | 2012-07-30 | 2014-02-12 | 上海天演建筑物移位工程有限公司 | Building jacking system and jacking method |
| CN103015743B (en) * | 2012-12-01 | 2015-11-04 | 中国建筑第七工程局有限公司 | A kind of steel work Removing Columns construction method |
| CN103015743A (en) * | 2012-12-01 | 2013-04-03 | 中国建筑第七工程局有限公司 | Steel joist column-pulling construction method |
| CN103669576A (en) * | 2013-11-18 | 2014-03-26 | 中色十二冶金建设有限公司 | Integral jacking construction device and method for steel structure workshop |
| CN103696494A (en) * | 2013-12-11 | 2014-04-02 | 中冶天工上海十三冶建设有限公司 | Computer control hydraulic synchronous hoisting construction method for complex space truss structure |
| CN103696494B (en) * | 2013-12-11 | 2016-03-30 | 中冶天工上海十三冶建设有限公司 | The computer of complex space trussed construction controls hydraulic synchronizing lifting construction method |
| CN103983222A (en) * | 2014-04-15 | 2014-08-13 | 安徽富煌钢构股份有限公司 | Super high-rise steel structure steel tubular column machining measuring device |
| CN104878838A (en) * | 2015-03-24 | 2015-09-02 | 刘贻鹏 | Construction method of supporting-to-lifting reinforced concrete building |
| CN104878838B (en) * | 2015-03-24 | 2017-12-15 | 刘贻鹏 | A liter support reinforced concrete building method of construction is changed in one kind supporting |
| CN104863259A (en) * | 2015-05-06 | 2015-08-26 | 浙江中南建设集团钢结构有限公司 | Upside-down construction method for large-span ultra-high signal-layer cylindrical architectural steel structure |
| CN104863259B (en) * | 2015-05-06 | 2017-04-19 | 浙江中南建设集团钢结构有限公司 | Upside-down construction method for large-span ultra-high signal-layer cylindrical architectural steel structure |
| CN105064717A (en) * | 2015-07-24 | 2015-11-18 | 武大巨成结构股份有限公司 | Method for constructing added storey of building in jack-up manner through steel slide ways |
| CN105672482A (en) * | 2016-01-29 | 2016-06-15 | 浙江水利水电学院 | Large-span historic building roof surface repair jacking device and construction method |
| CN109386525A (en) * | 2017-08-09 | 2019-02-26 | 森科嘉株式会社 | The reinforcement structure and strengthening part for the structural body being made of column and beam |
| CN108678411A (en) * | 2018-06-06 | 2018-10-19 | 新兴铸管股份有限公司 | A kind of workshop exempts to tear joist column method open |
| CN108952207A (en) * | 2018-09-25 | 2018-12-07 | 中国化学工程第三建设有限公司 | A kind of layer reinforced structure and increasing layer method of steel building |
| CN108952207B (en) * | 2018-09-25 | 2023-09-19 | 中国化学工程第三建设有限公司 | Steel structure building storey adding structure and storey adding method |
| CN110158983A (en) * | 2019-05-30 | 2019-08-23 | 同济大学建筑设计研究院(集团)有限公司 | A kind of self-balancing type steel underpinning device |
| CN110158983B (en) * | 2019-05-30 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | Self-balancing steel underpinning device |
| CN111877790A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
| CN111877790B (en) * | 2020-07-01 | 2021-11-09 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
| CN112459516A (en) * | 2020-10-23 | 2021-03-09 | 上海建工二建集团有限公司 | Construction method for increasing net height of existing building |
| CN114319929A (en) * | 2021-12-28 | 2022-04-12 | 上海建为历保科技股份有限公司 | Integral jacking device for house |
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