阅读说明：本技术 临近既有线狭窄空间架设t梁施工方法 (It closes on both wired narrow spaces and sets up T beam construction method ) 是由 任鹏鹏 张兴峰 张晋红 张永超 弓鑫 郭少敏 张志恒 周鑫 申晋峰 谢兴 侯琳鹏 于 2019-08-14 设计创作，主要内容包括：本发明公开了一种临近既有线狭窄空间架设T梁施工方法,涉及架设T梁施工领域,由于狭窄空间内只够两台大型吊车站位的架设作业,运梁车没有足够空间靠近作业地点时。为使作业半径减小到安全系数范围内,因此采用点前移梁的方式,先将T梁存放于临近有足够承载力的构筑物上稳梁加固后,再挪动吊车至作业半径内,准备点内架梁作业。给点后用两台吊机抬梁架设法将T梁架设至设计中线上。销点前,吊车完成撤场。本发明可以适用于多种狭窄空间场合,可以根据具体的环境在本发明基础上进行适应性应用。本发明所提供的方法即加快了施工进度,提高了施工效率,又减小了安全风险；为后续工程的开展留足了时间。(Both wired narrow spaces are closed on the invention discloses one kind and set up T beam construction method, are related to setting up T beam construction field, due to the only erection operation of enough two large-scale Standing position of a crane in narrow space, when beam car does not have sufficient space close to operating location.To be reduced to operating radius within the scope of safety coefficient, therefore in such a way that point moves forward beam, first T beam is deposited in and is closed on the structures for there are enough bearing capacities after steady beam reinforcing, then is moved in crane to operating radius, operation of setting a roof beam in place in point is prepared.Try extremely to design T erection on middle line with two loop wheel machine lift roof beams structure to after point.Before pin point, crane completion is withdrawn.Present invention may apply to a variety of narrow space occasions, can carry out adaptability application on the basis of the present invention according to specific environment.Method provided by the present invention accelerates construction speed, improves construction efficiency, and reduce security risk；The time has been stopped for the development of successive projects.)

1. one kind, which closes on both wired narrow spaces, sets up T beam construction method, characterized by the following steps:

1) preparation of construction:

1. carrying out site acceptance to T beam with management, the geometric dimension, presentation quality and guarded drainage facility of beam are checked；It checks and marks Know whether T beam matches with corresponding pier, inspection center line, center of gravity line and T beam installation direction, and mark, accomplish it is clear, Accurately, eye-catching；

2. measuring T beam support cross hairs checks bridge span；

3. closing on both wired, hard segregator barriers and crash barrier are closed, existing equipment is given to paste reflective strip, keeps mark obvious；

4. foundation detection, undesirable change in time fills out processing；

5. bridge pad and the hard mortar of stemness prepare to pier top, mortar is completed according to thickness and supporting stand size；

2) loop wheel machine prepares:

1. checking whether loop wheel machine properties are normal, stabilization is hung in each mechanical equipment operational excellence, examination, is had no abnormal sound；Lifting operation field Ground is smooth, and foundation bearing capacity should meet requirement for bearing capacity；The specification requirement being computed in suspender, rope review scheme, and check Whether wirerope appearance has disconnected wound, injured position, and wirerope has wound, forbid using；

2. loop wheel machine requires to finish in designated position Zhi Li according to scheme, large arm is stretched out to working length, hangs up properly wirerope；

3) feeding beam, bundle beam: trailer transports beam piece and reaches designated position, manually ajusts at hanging beam wirerope to beam-ends 1-1.5m, Crane makes power that wirerope is fixed on lifting position；Wirerope and beam bottom and back contact site are using rubber pad, iron shield watt branch Pad protection does not make beam body and wirerope injured, and makes wirerope uniform force；

4) examination is hung: after beam piece is tied, being checked and is confirmed through commanding, assign examination and hang order；Examination is hung order and is assigned by operation team leader； Crane leg, suspension hook, wirerope are checked by safety director, live responsible person carries out situation of change at T beam suspension centre It checks, hoistman inspection instrument board state, after situation without exception, commander's beam car is driven out under beam body；

5) it lifts by crane: according to temporarily beam structures height is deposited, beam body being lifted and is more than stopping lifting after bracket 0.5m, lifts by crane process Using two cranes, and guarantee synchronous progress operation；

6) pivoted arm: after beam piece is lifted to predetermined altitude, two cranes distinguish pivoted arm according to sequencing, and beam piece is gone to and deposits beam structure Contraposition above object is built, pivoted arm process is instructed by the single transmission of lifting commanding；

7) it falls beam temporarily to store: depositing beam fulcrum adjustment beam position according to scheduled temporary structure, confirm to just beam is fallen afterwards in place, face When support dot center old sleeper support pad is being used apart from beam-ends 0.5m at, fall before beam is by technical staff's review center line, sideline It is no to meet the requirements, such as unqualified timely calibration；Remaining 5 ton forces of control crane at this time guarantee to carry out bridge in the case that beam body is stablized Beam supporting；

8) steady beam: after beam body is in place, beam body is supported using 150 × 150mm lumps of wood, beam-ends is per collateral support 2；

9) rope closing, pivoted arm: after the completion of beam reinforcement, wirerope pine power, special messenger's decoupling device；Wirerope beam body two sides Xu after decoupling device Xu Fangsong forbids wirerope abandonning beam body；Crane pivoted arm carries out the lifting storage of second beam；

10) loop wheel machine shift: T beam temporarily store after progress loop wheel machine displacement, move within lifting operation radius, bridge drop shadow spread with Just do not influence to fall beam as principle using large arm outside；Supporting leg install it is firm after wait skylight point to dot command；

11) it ties beam: first confirming that contact net has a power failure after receiving to dot command, then start lifting construction；Manually ajust hanging beam steel wire At rope to beam-ends 1-1.5m, crane makes power that wirerope is fixed on lifting position；Wirerope is adopted with beam bottom and back contact site With rubber pad, iron shield watt support pad protection, do not make beam body and wirerope injured, and make wirerope uniform force；Wirerope is using double Two isometric wirerope of stock, wirerope and T beam angle control within the scope of 85 ° ~ 90 °, and anti-slip facility is arranged, and utilize the wing The pre-buried T steel of listrium and wet seam leakage reinforcing bar set are used as anti-slip measure；

12) examination is hung: after beam piece is tied, being checked and is confirmed through commanding, assigns examination and hang order, examination hangs order by under operation team leader Reach, crane leg, suspension hook, wirerope checked by safety director, live responsible person to situation of change at T beam suspension centre into Row checks that hoistman checks instrument board state, formal to lift by crane after situation without exception；

13) lifting, pivoted arm: according to pier bearing beam stone height, beam body is lifted and is more than stopping lifting after its 0.5m；Loop wheel machine pivoted arm Beam piece is gone to above pier stud, pivoted arm process is instructed by the single transmission of lifting teams and groups commanding；

14) it is in place to fall beam: pivoted arm starts to fall beam to after aligning, and stops falling beam when falling beam to apart from support top 5cm, starts to tighten branch Seat bolt；Start to fall beam in place after the completion of carrier setting bolt fastening, checks alignment situation again；According to beam-ends vertical line and beam-ends sideline Start to adjust beam position, confirmation to just falling beam in place afterwards；Center line is met by technical staff, whether sideline meets the requirements, support with Whether pinner is closely connected, even if such as unqualified calibration；Remaining 5 ton forces of control crane at this time guarantee to carry out in the case that beam body is stablized Bridge supporting, and start that high-strength mortar is perfused to support preformed hole；First beam bottom quadrangle support pad jack, beam slab bottom support pad The lumps of wood and timber wedge, until to weld transverse splicing rear in place dismountable for second beam；

15) transverse splicing partition welds: after second beam body consolidates in place, the welding of transverse splicing steel plate is carried out immediately, it will Two panels beam is linked to be entirety；Then crane slack rope starts to receive leg and withdraw；Remove beam body temporary support jack and the lumps of wood.

Technical field

The present invention relates to T beam construction field, specially one kind is closed on both wired narrow space erection T beam construction methods, is fitted For being only capable of installing crane in narrow place, what beam car cannot be close closes on both wired T Beams Erection Constructions.

Background technique

In closing on both wired work progress, it is ensured that both wired safe operation was the focus of unit in charge of construction, was closed on Both the arrangement and method for construction of wired construction was particularly important, and especially girder erection method is even more so.Due to closing on both wired constructions, pacify Full blast danger is high；Construction site is narrow, is only sufficient to a large-scale crane erect-position, and beam car cannot be close to operating location；It is right when setting a roof beam in place It is high temporarily to deposit beam structures requirement for bearing capacity, it is therefore desirable to provide a kind of construction method of reliable T beam in such a case.

Summary of the invention

The present invention sets up the construction of T beam to solve the problems, such as to close on existing line using narrow space, provides one kind and faces Closely both wired narrow space sets up T beam construction method.

The present invention is achieved by the following technical solution: one kind closing on both wired narrow spaces and sets up T beam construction party Method includes the following steps:

1) preparation of construction:

1. carrying out site acceptance to T beam with management, the geometric dimension, presentation quality and guarded drainage facility of beam are checked；It checks and marks Know whether T beam matches with corresponding pier, inspection center line, center of gravity line and T beam installation direction, and mark, accomplish it is clear, Accurately, eye-catching；

2. measuring T beam support cross hairs checks bridge span；

3. closing on both wired, hard segregator barriers and crash barrier are closed, existing equipment is given to paste reflective strip, keeps mark obvious；

4. foundation detection, undesirable change in time fills out processing；

5. bridge pad and the hard mortar of stemness prepare to pier top, mortar is completed according to thickness and supporting stand size；

2) loop wheel machine prepares:

1. checking whether loop wheel machine properties are normal, stabilization is hung in each mechanical equipment operational excellence, examination, is had no abnormal sound；Lifting operation field Ground is smooth, and foundation bearing capacity should meet requirement for bearing capacity；The specification requirement being computed in suspender, rope review scheme, and check Whether wirerope appearance has disconnected wound, injured position, and wirerope has wound, forbid using；

2. loop wheel machine requires to finish in designated position Zhi Li according to scheme, large arm is stretched out to working length, hangs up properly wirerope；

3) feeding beam, bundle beam: trailer transports beam piece and reaches designated position, manually ajusts at hanging beam wirerope to beam-ends 1-1.5m, Crane makes power that wirerope is fixed on lifting position；Wirerope and beam bottom and back contact site are using rubber pad, iron shield watt branch Pad protection does not make beam body and wirerope injured, and makes wirerope uniform force；

4) examination is hung: after beam piece is tied, being checked and is confirmed through commanding, assign examination and hang order；Examination is hung order and is assigned by operation team leader； Crane leg, suspension hook, wirerope are checked by safety director, live responsible person carries out situation of change at T beam suspension centre It checks, hoistman inspection instrument board state, after situation without exception, commander's beam car is driven out under beam body；

5) it lifts by crane: according to temporarily beam structures height is deposited, beam body being lifted and is more than stopping lifting after bracket 0.5m, lifts by crane process Using two cranes, and guarantee synchronous progress operation；

6) pivoted arm: after beam piece is lifted to predetermined altitude, two cranes distinguish pivoted arm according to sequencing, and beam piece is gone to and deposits beam structure Contraposition above object is built, pivoted arm process is instructed by the single transmission of lifting commanding；

7) it falls beam temporarily to store: depositing beam fulcrum adjustment beam position according to scheduled temporary structure, confirm to just beam is fallen afterwards in place, face When support dot center old sleeper support pad is being used apart from beam-ends 0.5m at, fall before beam is by technical staff's review center line, sideline It is no to meet the requirements, such as unqualified timely calibration；Remaining 5 ton forces of control crane at this time guarantee to carry out bridge in the case that beam body is stablized Beam supporting；

8) steady beam: after beam body is in place, beam body is supported using 150 × 150mm lumps of wood, beam-ends is per collateral support 2；

9) rope closing, pivoted arm: after the completion of beam reinforcement, wirerope pine power, special messenger's decoupling device；Wirerope beam body two sides Xu after decoupling device Xu Fangsong forbids wirerope abandonning beam body；Crane pivoted arm carries out the lifting storage of second beam；

10) loop wheel machine shift: T beam temporarily store after progress loop wheel machine displacement, move within lifting operation radius, bridge drop shadow spread with Just do not influence to fall beam as principle using large arm outside；Supporting leg install it is firm after wait skylight point to dot command；

11) it ties beam: first confirming that contact net has a power failure after receiving to dot command, then start lifting construction；Manually ajust hanging beam steel wire At rope to beam-ends 1-1.5m, crane makes power that wirerope is fixed on lifting position；Wirerope is adopted with beam bottom and back contact site With rubber pad, iron shield watt support pad protection, do not make beam body and wirerope injured, and make wirerope uniform force；Wirerope is using double Two isometric wirerope of stock, wirerope and T beam angle control within the scope of 85 ° ~ 90 °, and anti-slip facility is arranged, and utilize the wing The pre-buried T steel of listrium and wet seam leakage reinforcing bar set are used as anti-slip measure；

12) examination is hung: after beam piece is tied, being checked and is confirmed through commanding, assigns examination and hang order, examination hangs order by under operation team leader Reach, crane leg, suspension hook, wirerope checked by safety director, live responsible person to situation of change at T beam suspension centre into Row checks that hoistman checks instrument board state, formal to lift by crane after situation without exception；

13) lifting, pivoted arm: according to pier bearing beam stone height, beam body is lifted and is more than stopping lifting after its 0.5m；Loop wheel machine pivoted arm Beam piece is gone to above pier stud, pivoted arm process is instructed by the single transmission of lifting teams and groups commanding；

14) it is in place to fall beam: pivoted arm starts to fall beam to after aligning, and stops falling beam when falling beam to apart from support top 5cm, starts to tighten branch Seat bolt；Start to fall beam in place after the completion of carrier setting bolt fastening, checks alignment situation again；According to beam-ends vertical line and beam-ends sideline Start to adjust beam position, confirmation to just falling beam in place afterwards；Center line is met by technical staff, whether sideline meets the requirements, support with Whether pinner is closely connected, even if such as unqualified calibration；Remaining 5 ton forces of control crane at this time guarantee to carry out in the case that beam body is stablized Bridge supporting, and start that high-strength mortar is perfused to support preformed hole；First beam bottom quadrangle support pad jack, beam slab bottom support pad The lumps of wood and timber wedge, until to weld transverse splicing rear in place dismountable for second beam；

15) transverse splicing partition welds: after second beam body consolidates in place, the welding of transverse splicing steel plate is carried out immediately, it will Two panels beam is linked to be entirety；Then crane slack rope starts to receive leg and withdraw；Remove beam body temporary support jack and the lumps of wood.

It is provided by the present invention to close on both wired narrow space T beam construction methods, due to only enough two big in narrow space The erection operation of type Standing position of a crane, when beam car does not have sufficient space close to operating location.To make operating radius be reduced to safety In coefficient range, therefore in such a way that point moves forward beam, first T beam is deposited in and closes on steady beam on the structures for there are enough bearing capacities It after reinforcing, then moves in crane to operating radius, prepares operation of setting a roof beam in place in point.Tried with two loop wheel machine lift roof beams structure by T to after point On erection to design middle line.Before pin point, crane completion is withdrawn.It, can be with present invention may apply to a variety of narrow space occasions Adaptability application is carried out on the basis of the present invention according to specific environment.

Compared with prior art the invention has the following advantages: provided by the present invention close on both wired narrow spaces T beam construction method can carry out the improvement of hanging method, using two large-scale crane operations, i.e. pole according to live actual place The earth ensures both wired traffic safeties；It is applied compared to the super-huge loop wheel machine of use in block is put with former scheme across both wired liftings Work accelerates construction speed, improve construction efficiency, and reduce security risk；When having been stopped for the development of successive projects Between, reducing will block a little to each station section Cost for Coordination and putting examination and approval procedures.

Detailed description of the invention

Fig. 1 is construction flow chart of the invention.

Fig. 2 is that beam body of the invention supports schematic diagram.

Fig. 3 is the construction elevation depositing beam and setting a roof beam in place of the invention.

Specific embodiment

Below in conjunction with specific embodiment, the invention will be further described.

One kind closing on both wired narrow spaces and sets up T beam construction method, as shown in Figure 1, including the following steps:

1) preparation of construction:

1. carrying out site acceptance to T beam with management, the geometric dimension, presentation quality and guarded drainage facility of beam are checked；It checks and marks Know whether T beam matches with corresponding pier, inspection center line, center of gravity line and T beam installation direction, and mark, accomplish it is clear, Accurately, eye-catching；

2. measuring T beam support cross hairs checks bridge span；

3. closing on both wired, hard segregator barriers and crash barrier are closed, existing equipment is given to paste reflective strip, keeps mark obvious；

4. foundation detection, undesirable change in time fills out processing；

5. bridge pad and the hard mortar of stemness prepare to pier top, mortar is completed according to thickness and supporting stand size；

2) loop wheel machine prepares:

1. checking whether loop wheel machine properties are normal, stabilization is hung in each mechanical equipment operational excellence, examination, is had no abnormal sound；Lifting operation field Ground is smooth, and foundation bearing capacity should meet requirement for bearing capacity；The specification requirement being computed in suspender, rope review scheme, and check Whether wirerope appearance has disconnected wound, injured position, and wirerope has wound, forbid using；

2. loop wheel machine requires to finish in designated position Zhi Li according to scheme, large arm is stretched out to working length, hangs up properly wirerope；

3) feeding beam, bundle beam: trailer transports beam piece and reaches designated position, manually ajusts at hanging beam wirerope to beam-ends 1-1.5m, Wirerope is slightly firmly fixed on lifting position by crane；Wirerope and beam bottom and back contact site are using rubber pad, iron shield watt Support pad protection does not make beam body and wirerope injured, and makes wirerope uniform force；

4) examination is hung: after beam piece is tied, being checked and is confirmed through commanding, assign examination and hang order；Examination is hung order and is assigned by operation team leader； Crane leg, suspension hook, wirerope are checked by safety director, live responsible person carries out situation of change at T beam suspension centre It checks, hoistman inspection instrument board state, after situation without exception, commander's beam car is driven out under beam body；

5) it lifts by crane: according to temporarily beam structures height is deposited, beam body being lifted and is more than stopping lifting after bracket 0.5m, lifts by crane process Using two cranes, and guarantee synchronous progress operation；

6) pivoted arm: after beam piece is lifted to predetermined altitude, two cranes distinguish pivoted arm according to sequencing, and beam piece is gone to and deposits beam structure Contraposition above object is built, pivoted arm process is instructed by the single transmission of lifting commanding；

7) it falls beam temporarily to store: depositing beam fulcrum adjustment beam position according to scheduled temporary structure, confirm to just beam is fallen afterwards in place, face When support dot center old sleeper support pad is being used apart from beam-ends 0.5m at, fall before beam is by technical staff's review center line, sideline It is no to meet the requirements, such as unqualified timely calibration；Remaining 5 ton forces of control crane at this time guarantee to carry out bridge in the case that beam body is stablized Beam supporting；

8) steady beam: after beam body is in place, beam body is supported using 150 × 150mm lumps of wood, beam-ends is per collateral support 2；

9) rope closing, pivoted arm: after the completion of beam reinforcement, wirerope pine power, special messenger's decoupling device；Wirerope beam body two sides Xu after decoupling device Xu Fangsong forbids wirerope abandonning beam body；Crane pivoted arm carries out the lifting storage of second beam；

10) loop wheel machine shift: T beam temporarily store after progress loop wheel machine displacement, move within lifting operation radius, bridge drop shadow spread with Just do not influence to fall beam as principle using large arm outside；Supporting leg install it is firm after wait skylight point to dot command；

11) it ties beam: first confirming that contact net has a power failure after receiving to dot command, then start lifting construction；Manually ajust hanging beam steel wire At rope to beam-ends 1-1.5m, wirerope is slightly firmly fixed on lifting position by crane；Wirerope and beam bottom and back contact site Using rubber pad, iron shield watt support pad protection, do not make beam body and wirerope injured, and make wirerope uniform force；Wirerope uses Bifilar two isometric wirerope, wirerope and T beam angle control within the scope of 85 ° ~ 90 °, and anti-slip facility is arranged, and utilize The pre-buried T steel of flange plate and wet seam leakage reinforcing bar set are used as anti-slip measure；

12) examination is hung: after beam piece is tied, being checked and is confirmed through commanding, assigns examination and hang order, examination hangs order by under operation team leader Reach, crane leg, suspension hook, wirerope checked by safety director, live responsible person to situation of change at T beam suspension centre into Row checks that hoistman checks instrument board state, formal to lift by crane after situation without exception；

13) lifting, pivoted arm: according to pier bearing beam stone height, beam body is lifted and is more than stopping lifting after its 0.5m；Loop wheel machine pivoted arm Beam piece is gone to above pier stud, pivoted arm process is instructed by the single transmission of lifting teams and groups commanding；

14) it is in place to fall beam: pivoted arm starts to fall beam to after aligning, and stops falling beam when falling beam to apart from support top 5cm, starts to tighten branch Seat bolt；Start to fall beam in place after the completion of carrier setting bolt fastening, checks alignment situation again；According to beam-ends vertical line and beam-ends sideline Start to adjust beam position, confirmation to just falling beam in place afterwards；Center line is met by technical staff, whether sideline meets the requirements, support with Whether pinner is closely connected, even if such as unqualified calibration；Remaining 5 ton forces of control crane at this time guarantee to carry out in the case that beam body is stablized Bridge supporting, and start that high-strength mortar is perfused to support preformed hole；First beam bottom quadrangle support pad jack, beam slab bottom support pad The lumps of wood and timber wedge, until to weld transverse splicing rear in place dismountable for second beam；

15) transverse splicing partition welds: after second beam body consolidates in place, the welding of transverse splicing steel plate is carried out immediately, it will Two panels beam is linked to be entirety；Then crane slack rope starts to receive leg and withdraw；Remove beam body temporary support jack and the lumps of wood.

Beam body support in the present embodiment is as shown in Figure 2.Quality control in the present embodiment are as follows: support ten is completed before setting a roof beam in place Wordline setting-out, snap the line beam-ends line, support middle line, composite support pinner absolute altitude meet each hole span to two progress holing through survey Repetition measurement report is formed, person in charge of the technology aspect carries out pier top review；The technical certificate that precast beam must be accompanied by manufacturer is (qualified Card), and inspected for acceptance by special messenger, discovery failure must not dispatch from the factory；Production fixing end and movable end position have to comply with requirement, Bottom surface of support saddle and pier support pinner top surface are closely connected, and gapless between upper base plate and beam bottom, full wafer beam is accomplished without three leg phenomenons It is flat, close, tight；Beam support crab bolt and nut must install complete, non-loosening phenomenon.On bolt buried depth of casting anchor should meet and set Meter requires, and forbids to clip crotch into insertion keyhole, and nut exposes three after tightening, and if any fast knot, fractures and must thoroughly repair；Branch The cross hairs that seat bottom center line should support pinner face to release with pier matches, and beam-ends expansion joint meets predetermined size, beam piece Between gap meet regulation；After bridge dropping place and support installation, then by design requirement do wet seam, it is ensured that reinforcing bar binding is qualified, Concrete strength is met the requirements；When anchor hole is out of alignment or depth is inadequate, it is necessary to can after requiring finishing qualified according to the rules Continue operation；Before anchor hole is perfused, it is necessary to sundries in cleaning hole, cement mortar of pouring water again after being rinsed well with clear water, and use drill rod Tamping, perfusion rear top surface smooth out；The lifting position of beam must add dedicated guard beam iron watt, because the reserved slot of construction relationship, hole with And the position damaged during setting a roof beam in place, it to modify together intact；Hanging beam, shifting each stress point of beam have to comply with design position；Connection Plate answers A wide selection of colours and designs, and quantity is sufficient, size qualification.Welding quality accomplishes that thickness not less than 8mm, must not there is crackle.If Fig. 3 is to be somebody's turn to do The construction elevation of embodiment depositing beam and setting a roof beam in place.

The scope of protection of present invention is not limited to the above specific embodiment, and for those skilled in the art and Speech, the present invention can there are many deformation and change, it is all within design and principle of the invention it is made it is any modification, improve and Equivalent replacement should be all included within protection scope of the present invention.