CN1141479C

CN1141479C - Method for drawing out bean and prop of workshop without stopping production

Info

Publication number: CN1141479C
Application number: CNB021026211A
Authority: CN
Inventors: 崔旭中; 崔洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-18
Filing date: 2002-01-18
Publication date: 2004-03-10
Anticipated expiration: 2022-01-18
Also published as: CN1358919A

Abstract

The present invention relates to a method for lifting beams and drawing out pillars for a workshop without stopping production. The present invention is characterized in that the present invention is completed through following steps: pillar foundation and pillar bodies supporting bent frame pillars are reinforced, corbel lug bosses are additionally provided, and lifting beams are manufactured and installed; finally, pillar sections of the bent frame pillars to be drawn out under the lifting beams are cut, and the task of enlarging pillar space is completed. The present invention can complete all workshop reformation and enlarge the pillar space under the condition that the production is not stopped, the production time can be retrieved, the improvement project investment can be saved, and the appreciable economic benefit is provided. The present invention can be widely used in the improvement project of enlarging the pillar space of an old workshop.

Description

The method of factory building drawing out bean and prop under not stopping production condition

Technical field:

The present invention relates to a kind of renovation of building technical method, particularly a kind of under not stopping production condition, take out part factory building framed bent post, form wide post distance to satisfy the old factory rehabilitation technical method that new production technology layout requires.

Background technology:

In old old factory rehabilitation, the post of former factory building is apart from the too small obstacle that often becomes technology arrangement.For enlarging the post distance, must take out part framed bent post to form the post distance of new broad, as the framed bent post with 6 meters original post distances, the centre is taken out one can form 12 meters posts apart from the space.When prior art is taken out post, must under the stopping production condition, carry out.Main method is, does a steel joist holder earlier and props up roof truss (being roof system) on the framed bent post of desiring to take out, reinforces the supporting row frame post at steel joist two ends then; Remove and desire crane girder system, framed bent post and the base for post that the pump drainage trestle is supported; Then, do a Pin length and be and take out the new crane girder system of new post behind the post, after treating two end supports framed bent post and base for post reinforced, newer crane girder system is installed and adjusts, resume production apart from length.Like this from steel joist holder support roof truss being installed, being removed crane girder system, dismounting framed bent post and patten to reinforcing two end supports framed bent post and patten, the new steel crane beam system of installation, overhead traveling crane in the whole reforming technology process factory building all can't move in this section factory building zone, also promptly must stop production.And minimumly need stopping production 3-4 month, will be many economic loss for enterprise during this.

Summary of the invention:

The purpose of this invention is to provide a kind of method of under not stopping production condition, taking out factory building part framed bent post with the drawing out bean and prop of expansion post distance.

The object of the present invention is achieved like this: a kind of under not stopping production condition the method for factory building drawing out bean and prop, it is characterized in that forming by following steps:

A) patten, the cylinder of reinforcing two end supports framed bent post are set up the bracket boss that beam is lifted in installation at the following position of crane girder, cylinder both sides;

B) make and install and lift beam: will lift on the bracket boss that beam is installed in the supporting row frame post both sides after the reinforcing respectively by two monolithics that measuring and calculating load designs and produces, make two monolithics lift beam and clamp and desire the pump drainage trestle, and finish the connection of lifting beam and supporting row frame post and bracket boss, connection, two monolithics of lifting beam and desire pump drainage trestle are lifted interconnecting between the beam;

C) beam of lifting that will desire the pump drainage trestle blocks removal with the lower part.

Purpose of the present invention can also realize like this: lifting beam with the bind mode of desiring the pump drainage trestle is: lift the desire pump drainage trestle left and right sides that beam clamps at two monolithics and be connected crossbeam respectively, on desire pump drainage trestle, hole, insert rod iron in the hole, the two end supports of rod iron also is bound up on the crossbeam, after adjustment pushes against, two monolithics are lifted desire pump drainage trestle that beam and both sides crossbeam surround lift in " well " font groove of centre and pour into the expansion concrete, make this place become a rigid connection point.

The bind mode of lifting beam and supporting row frame post and bracket boss is: at the supporting row frame post corresponding site of reinforcing and the end face pre-buried steel ironware of bracket boss, after lifting beam and being in place, will lift beam and the pre-buried steel ironware welds together.

The present invention has following advantage and positive social effect: need not stop production or not stop production substantially in whole old factory rehabilitation process, compared with prior art can save many engineering costs, so both solved the stopping production problem of prior art pump drainage trestle, retrieved the production time, also save the improvement project investment, thereby had very considerable economic.

Description of drawings:

Fig. 1 is for lifting the beam schematic diagram by the inventive method installation

Fig. 2 is that Fig. 1 is along the 1-1 sectional view

Fig. 3 is that Fig. 1 is along the 2-2 sectional view

The specific embodiment

Prior art is the roof system that holds up factory building with the steel joist, crane girder and walk the guidance tape system and must dismantle, make again and installation and joist with long steel crane beam and walk the guidance tape system, thereby need the stopping production several months to finish.Method of the present invention is directly to lift the crane girder of desiring to take out post part factory building and walk guidance tape and above roof system thereof with lifting beam.For this reason, at first reinforce the supporting row frame post (being the support column that steel is lifted the beam two ends) and the patten at two ends, the following suitable position of crane girder is set up the bracket boss in the cylinder both sides.Make two monolithics simultaneously and lift beam (two " I " font welded steel beams).After the intensity for the treatment of supporting row frame post footing meets design requirement, steel can be installed lift beam.Make two lift beam clamp to desire pump drainage trestle (position is below the crane girder bracket) and with its connection firmly (because of framed bent post section has the branch of rectangle, " I " font, two limb or is steel column, its bind mode is different).Two monolithics are lifted beam and are also interconnected into an integrated member, and the steel that forms an integral body is lifted beam.The two end supports that steel is lifted beam is on the newly-increased bracket boss of the supporting row frame post at two ends, and is and firm with its connection, cuts out at last to desire the pump drainage trestle and lift shell of column below the beam at steel.

In implementation process, the relevant instrument of general application is tested, is monitored, during monitoring, face mutually and the overhead traveling crane of lift heavy maximum is placed on steel is lifted beam least favorable position whenever striding two, hang the normal back and forth speed operation of lumping weight amount, the observation steel is lifted the amount of deflection of beam and whether the stressing conditions of main rod member conforms to design calculated value.

Be that the rectangle steel tendon concrete structure is the operating procedure of example explanation drawing out bean and prop method of the present invention with factory building framed bent post section below.

Referring to accompanying

drawing

1,2,3,1 is the supporting row frame post among the figure, and 2 is the bracket boss, and 3 for desiring the pump drainage trestle, and 4 for lifting beam, and 5 is crossbeam, and 6 is rod iron.

The first, the working drawing of original factory building is examined, simultaneously the structure present situation of original factory building is checked, see that it has or not breakage, splits members such as bad, reinforces the needs of transforming to satisfy in case of necessity.

The second, according to patten, the cylinder of design reinforcement two end supports framed bent post 1 and set up bracket boss 2.The beam operate as normal is lifted in supposition earlier, and the supporting row frame post 1 at two ends has just been reformulated two new framed bent computing units.By checking computations to these two new computing units, just can draw desire and reinforce the reasonable arrangement of reinforcement of framed bent post and the concrete jacket thickness of section, can be regarded as equally its basis institute form and the size that should reinforce, designing and mapping and constructing then.According to the profile height of lifting beam, when reinforcing the framed bent post, below crane girder, suitably highly set up two bracket boss simultaneously.

The 3rd, design and produce and install and lift beam.

1, lifts the design of beam: dead load (and live load), the crane girder of statistics factory building roof system and walk the static load (and live load) of guidance tape system and desire the weight of the left upper semisection of pump drainage trestle (being generally the 1-3 root), the every post of desiring to take out the above-mentioned load that should support concentrate in together, be this post and be added in the permanent load of lifting this permanent position of beam.

whenever stride two adjacent overhead traveling cranes of maximum tonnage hang fully loaded heavy be placed in simultaneously to lift on the beam least favorable position and above-mentioned bracket in live load also be placed on simultaneously and desire to take out on the post, by desire to take out post should pass to the vertical force of lifting beam, be the dynamic load of lifting beam.

Calculate to such an extent that permanent load and dynamic load design are lifted each member of beam according to above-mentioned, calculate its monolithic by 50% of above-mentioned two kinds of load summations and lift beam, when lifting the beam calculation Design, each monolithic undertaken by real abdomen steel crane beam, steel is lifted beam and just can be designed to two real abdomen steel crane beams like this, is coupled as one into as a whole steel when installing then again and lifts beam.

2, lift the connection of beam and two end supports framed bent post: lift the bottom flange, two ends of beam and the pre-buried steel ironware of bracket boss end face and weld, supporting row frame post side pre-buried steel ironware after top flange and the reinforcing welds, and the bind mode bind mode with crane girder and framed bent post basically is identical.

3, lift beam and the connection of desiring the pump drainage trestle: lift the beam two ends in place after, the last bottom flange of lifting beam just in time reinforces thickness at a distance of one with desire pump drainage trestle both sides, respectively adding one or two crossbeam near desiring pump drainage trestle both sides, bore two holes at the suitable position of desiring the pump drainage trestle, insert two rod irons (hole and rod iron diameter are calculated by the load that desire pump drainage trestle hands down) then, the two end supports of rod iron also is bound up on the crossbeam, after adjusting and pushing against, lift " well " font groove (groove depth is for lifting deck-molding) and pour into expansion concrete (desire in the groove pump drainage trestle surface will cut a hole hair in advance strip off the skin) in the centre lift desire pump drainage trestle that beam " I " Zee bar steel Z web and two crossbeams surround by two monolithics.

4, two monolithics are lifted beam and are interconnected: two monolithics lift on the beam bottom flange respectively with angle steel as diagonal web member mutually with high-strength bolt connect (or firm welding) and can be in the middle of two monolithics be lifted beam suitable position add vertical scissors and support, make it into as a whole.

The 4th, amputation is desired the pump drainage trestle and is lifted beam with the lower part: wait to lift when concrete reaches requirement of strength in beam and " well " font groove of desiring pump drainage trestle junction, can finish the expansion factory building columns at last apart from task lifting the disconnected desire of lower flange of girder edge bottom cutter pump drainage trestle (should monitor during truncated cylinder).

Claims

1, a kind of under not stopping production condition the method for factory building drawing out bean and prop, it is characterized in that forming by following steps:

A) patten, the cylinder of reinforcing two end supports framed bent post (1) are set up the bracket boss (2) that beam is lifted in installation at the following position of crane girder, cylinder both sides;

B) make and install and lift beam: will lift on the bracket boss (2) that beam (4) is installed in the supporting row frame post both sides after the reinforcing respectively by two monolithics that measuring and calculating load designs and produces, make two monolithics lift beam (4) and clamp and desire pump drainage trestle (3), and finish the connection of lifting beam (4) and supporting row frame post (1) and bracket boss (2), connection, two monolithics of lifting beam (4) and desire pump drainage trestle (3) are lifted interconnecting between the beam (4);

C) beam of lifting that will desire pump drainage trestle (3) blocks removal with the lower part.

2, according to claim 1 under not stopping production condition the method for factory building drawing out bean and prop, it is characterized in that: lifting beam (4) with the bind mode of desiring pump drainage trestle (3) is: lift desire pump drainage trestle (3) left and right sides that beam (4) clamps at two monolithics and be connected crossbeam (5) respectively, desiring upward boring of pump drainage trestle (3), insert rod iron (6) in the hole, the two end supports of rod iron (6) also is bound up on the crossbeam (5), after adjustment pushes against, two monolithics are lifted desire pump drainage trestle (3) that beam (4) and both sides crossbeam (5) surround lift in " well " font groove of centre and pour into the expansion concrete, make this place become a rigid connection point.

3, according to claim 1 under not stopping production condition the method for factory building drawing out bean and prop, it is characterized in that: the bind mode of lifting beam (4) and supporting row frame post (1) and bracket boss (2) is: at the supporting row frame post corresponding site of reinforcing and the end face pre-buried steel ironware of bracket boss (2), after lifting beam (4) and being in place, will lift beam (4) and weld together with the pre-buried steel ironware.