CN103410311A - Raising-plate high-formwork construction method of indoor pool - Google Patents

Abstract

The invention discloses a raising-plate high-formwork support construction method of an indoor pool. A high-formwork plate supporting system adopts a phi 48*3.0 fastening type steel pipe all-round scaffold, and the method comprises the following steps of slab form construction and beam form construction. The method is convenient to construct and good in effect; a bent frame is stable and reliable on the whole and meets the requirement of standards and regulations; upper prestress beam floor concrete is poured by one time, the supporting system meets the requirement, the smooth performing of follow-up procedures is ensured, and experiences are accumulated for construction of same-type structure engineering in future.

Description

Swimming hall raising-plate high-supported formwork job practices

Technical field

The present invention relates to a kind of swimming hall raising-plate high-supported formwork job practices.

Background technology

During the construction of existing swimming hall raising-plate, the support system height is large, and the prestressed girder two ends are the horn mouth form, sets up difficulty larger, has brought certain difficulty for layout and the construction of template framed bent; The span of prestressed girder is large, and template is selected and support system is had relatively high expectations.Job practices in the urgent need to a kind of convenience, practicality.

Summary of the invention

The object of the present invention is to provide a kind of easy construction, effective swimming hall raising-plate high-supported formwork job practices.

Technical solution of the present invention is:

A kind of swimming hall raising-plate high-supported formwork job practices, is characterized in that: comprise the following steps:

(1) formwork bracing system adopts φ 48 * 3.0 fastener type steel pipe scaffolds:

At the bottom of beam, the steel pipe framed bent is set up: vertical rod is 600mm along beam span direction spacing, and at the bottom of beam, the load-bearing vertical rod is 3, and little cross bar spacing is 300mm, and the scaffold step pitch is 600mm, 8.4 meters of scaffold building height; The steel pipe main joist is adopted at steel pipe framed bent top, wooden a tree, used in making timber for boats joist, and upper berth overlay film composite board forms large beam bottom board; Beam bottom mother plate adopts 18 thick overlay film multi-plywoods, and the primary and secondary keel all adopt 50 * 100mm flitch; Large beam side panel also adopts the overlay film multi-plywood, and the back side adopts the elongated vertical wood of 50 * 100mm stupefied, and wooden stupefied spacing: bed die is that 200mm, side form are 300mm; The split bolt steel pipe clamp, be not more than 550mm along the spacing of beam length direction, and vertical spacing is 300mm; Split bolt is selected φ 14 reinforcement fabrications, and bolt adopts totally four roads up and down;

At the bottom of plate, steel pipe is set up: vertical rod spacing in length and breadth is 1200mm, and the cross bar step pitch is not more than 1200mm, and plate bottom horizontal steel pipe spacing distance is 300mm, and adjustable U holder, 10.8 meters of vertical rod scaffolding heights are adopted in horizontal steel pipe and vertical rod; At the bottom of plate, adopt 50 * 80 joist flitch support, the length that the vertical rod upper end extend out to shuttering supporting point is not more than 300mm, and template die adopts 12 thick overlay film multi-plywoods;

(2) slab form construction

A) set up form

Roof plate template adopts the thick bamboo plywood of 12mm, adopts 50mm * 80mm flitch to do inferior stupefied, middle apart from 300mm, adopt Φ 48 * 3.0mm steel pipe to decide stupefied, spacing 1200mm, adopt the full hall of ф 48 * 3.0 fastener types steel pipe scaffold to do support system, vertical rod spacing in length and breadth is 1200mm, step pitch h=1.2m; The level liftoff 200mm of bar that sweeps the floor, crossbar is stretched out and is effluxed vertical rod 0.1m; Consider the stability of whole support system, at the 4.5m place, wall-connecting piece is set and is connected with agent structure, wall-connecting piece spacing 6.0m, the opposite face 0.9m that staggers arranges; The inside and outside facade of support surrounding is completely established bridging, and establish together every 4～6m at middle part; Frame bottom, top arrange one level and add layer;

B) set up order

Set up and frontly first swimming pool bottom is cleaned out, while setting up, the shelf bottom of upright rod adds base; Successively to vertical rod at the bottom of the setting of both sides, after bottom was fixing with the bar snapping of vertically sweeping the floor, the installing bar of laterally sweeping the floor, and fixing with vertical rod, after 3～4 vertical rods are holded up on every limit, installed first step vertical equity bar and transverse horizontal bar immediately from bight; Proofread and correct the vertical and horizon bar level of vertical rod, tighten fastening bolt by 45～55Nm moment, form the initial segment of framed bent, by above-mentioned requirements, extend and set up forward successively, until the friendship of first step frame has been enclosed; After handing over circle, wall-connecting piece is set; Second step, the 3rd step are set up in operation procedure and requirement by first step frame; Along with setting up process installing wall-connecting piece, be no more than 4 meters and establish plain net one;

(3) beam forms construction

A) set up form

With the full hall of floor bracing frame, set up vertical rod longitudinal pitch 600mm, vertical rod horizontal spacing 300mm, vertical rod step pitch 600mm; Sweep the floor bar apart from ground 200mm; Frame bottom, top, centre arrange one horizontal bracing diagonal as horizontal enhancement Layer every 4m;

At the bottom of beam, side form adopts the thick veneer of 18mm, the back side adopts the elongated vertical wood of 50mm * 100mm stupefied, wooden stupefied spacing: bed die is that 200mm, side form are 300mm; Formwork edge joint is less than 1.5mm, and vertical rod is 600mm along beam span direction spacing, and at the bottom of beam, the load-bearing vertical rod is 3, and little cross bar spacing is 300mm, and the scaffold step pitch is 600mm, 8.4 meters of scaffold building height; The steel pipe main joist is adopted at steel pipe framed bent top, wooden a tree, used in making timber for boats joist, and upper berth overlay film composite board forms large beam bottom board; The split bolt steel pipe clamp, be not more than 550mm along the spacing of beam length direction, and vertical spacing is 300mm, and split bolt is selected φ 14 reinforcement fabrications, and bolt adopts totally four roads up and down; Clamp: adopt φ 48 * 3.0 steel pipes;

B) beam bottom mother plate construction: by the absolute altitude that the design elevation adjustment is supported, the levelling of then mounting rail soffit formwork, and bracing wire, when beam base plate span is greater than and equals 4m, span centre beam bottom should be by the designing requirement arch camber, and during as the design no requirement (NR), springing height is 3/1000ths of beam span; During the primary-secondary beam handing-over, first girder arch camber, rear arch camber secondary beam.

C) the vertical rod advance of beam lower bolster support is arranged along the beam axis direction; The vertical rod transfer is arranged to bilateral symmetry centered by center line at the bottom of beam, and the outermost vertical rod is not more than 150mm apart from beam side distance; Be located at the adjustable base at falsework bottom of upright rod or top, its screw mandrel external diameter is not less than 36mm, and extension elongation is no more than 200mm; When falsework is set up under beam laterally horizon bar stretch in the falsework of beam biside plate and be no less than two vertical rods, and with the vertical rod snapping; Falsework application rigid connecting tube in swimming hall carries out anchoring in horizontal enhancement Layer position and frame column; Go up most one cross bar and be not more than 400mm from top template distance; The vertical rod spreading adopts docking, and every bottom of upright rod all arranges chock or scaffold floor; Falsework four limits with middle together with 4～6 row's vertical rod settings vertical bridging, by the end to top, arranged continuously; The falsework two ends start every 2～4 steps, horizontal cross brace to be set downwards from top layer every 4～6 row's vertical rods with middle; The falsework top arranges horizontal enhancement Layer with bottom: with horizontal brace, with "the" shape, horizontal cross brace is connected, horizontal brace width is not less than 3m; Setting up steel pipe framed bent in process presses closer tightly with concrete column, the table of having built; Support system: under beam under main joist steel pipe and plate framed bent be linked to be integral body.

Easy construction of the present invention, effective; The framed bent monolithic stability is reliable, meets standard and rules requirement, and top prestressed girder floor concrete primary concreting is complete, and support system has met requirement, has guaranteed carrying out smoothly of subsequent handling, and Structural Engineering of the same type has accumulated experience in order to construct from now on.

The invention will be further described below in conjunction with embodiment.

The specific embodiment

A kind of swimming hall raising-plate high-supported formwork job practices, comprise the following steps:

(1) formwork bracing system adopts φ 48 * 3.0 fastener type steel pipe scaffolds:

At the bottom of beam, the steel pipe framed bent is set up: vertical rod is 600mm along beam span direction spacing, and at the bottom of beam, the load-bearing vertical rod is 3, and little cross bar spacing is 300mm, and the scaffold step pitch is 600mm, 8.4 meters of scaffold building height; The steel pipe main joist is adopted at steel pipe framed bent top, wooden a tree, used in making timber for boats joist, and upper berth overlay film composite board forms large beam bottom board; Beam bottom mother plate adopts 18 thick overlay film multi-plywoods, and the primary and secondary keel all adopt 50 * 100mm flitch; Large beam side panel also adopts the overlay film multi-plywood, and the back side adopts the elongated vertical wood of 50 * 100mm stupefied, and wooden stupefied spacing: bed die is that 200mm, side form are 300mm; The split bolt steel pipe clamp, be not more than 550mm along the spacing of beam length direction, and vertical spacing is 300mm; Split bolt is selected φ 14 reinforcement fabrications, and bolt adopts totally four roads up and down;

At the bottom of plate, steel pipe is set up: vertical rod spacing in length and breadth is 1200mm, and the cross bar step pitch is not more than 1200mm, and plate bottom horizontal steel pipe spacing distance is 300mm, and adjustable U holder, 10.8 meters of vertical rod scaffolding heights are adopted in horizontal steel pipe and vertical rod; At the bottom of plate, adopt 50 * 80 joist flitch support, the length that the vertical rod upper end extend out to shuttering supporting point is not more than 300mm, and template die adopts 12 thick overlay film multi-plywoods;

(2) slab form construction

A) set up form

Roof plate template adopts the thick bamboo plywood of 12mm, adopts 50mm * 80mm flitch to do inferior stupefied, middle apart from 300mm, adopt Φ 48 * 3.0mm steel pipe to decide stupefied, spacing 1200mm, adopt the full hall of ф 48 * 3.0 fastener types steel pipe scaffold to do support system, vertical rod spacing in length and breadth is 1200mm, step pitch h=1.2m; The level liftoff 200mm of bar that sweeps the floor, crossbar is stretched out and is effluxed vertical rod 0.1m; Consider the stability of whole support system, at the 4.5m place, wall-connecting piece is set and is connected with agent structure, wall-connecting piece spacing 6.0m, the opposite face 0.9m that staggers arranges; The inside and outside facade of support surrounding is completely established bridging, and establish together every 4～6m at middle part; Frame bottom, top arrange one level and add layer;

B) set up order

Set up and frontly first swimming pool bottom is cleaned out, while setting up, the shelf bottom of upright rod adds base; Successively to vertical rod at the bottom of the setting of both sides, after bottom was fixing with the bar snapping of vertically sweeping the floor, the installing bar of laterally sweeping the floor, and fixing with vertical rod, after 3～4 vertical rods are holded up on every limit, installed first step vertical equity bar and transverse horizontal bar immediately from bight; Proofread and correct the vertical and horizon bar level of vertical rod, tighten fastening bolt by 45～55Nm moment, form the initial segment of framed bent, by above-mentioned requirements, extend and set up forward successively, until the friendship of first step frame has been enclosed; After handing over circle, wall-connecting piece is set; Second step, the 3rd step are set up in operation procedure and requirement by first step frame; Along with setting up process installing wall-connecting piece, be no more than 4 meters and establish plain net one;

(3) beam forms construction

A) set up form

With the full hall of floor bracing frame, set up vertical rod longitudinal pitch 600mm, vertical rod horizontal spacing 300mm, vertical rod step pitch 600mm; Sweep the floor bar apart from ground 200mm; Frame bottom, top, centre arrange one horizontal bracing diagonal as horizontal enhancement Layer every 4m;

At the bottom of beam, side form adopts the thick veneer of 18mm, the back side adopts the elongated vertical wood of 50mm * 100mm stupefied, wooden stupefied spacing: bed die is that 200mm, side form are 300mm; Formwork edge joint is less than 1.5mm, and vertical rod is 600mm along beam span direction spacing, and at the bottom of beam, the load-bearing vertical rod is 3, and little cross bar spacing is 300mm, and the scaffold step pitch is 600mm, 8.4 meters of scaffold building height; The steel pipe main joist is adopted at steel pipe framed bent top, wooden a tree, used in making timber for boats joist, and upper berth overlay film composite board forms large beam bottom board; The split bolt steel pipe clamp, be not more than 550mm along the spacing of beam length direction, and vertical spacing is 300mm, and split bolt is selected φ 14 reinforcement fabrications, and bolt adopts totally four roads up and down; Clamp: adopt φ 48 * 3.0 steel pipes; Set up order and require and support and set up with slab form.

B) beam bottom mother plate construction: by the absolute altitude that the design elevation adjustment is supported, the levelling of then mounting rail soffit formwork, and bracing wire, when beam base plate span is greater than and equals 4m, span centre beam bottom should be by the designing requirement arch camber, and during as the design no requirement (NR), springing height is 3/1000ths of beam span; During the primary-secondary beam handing-over, first girder arch camber, rear arch camber secondary beam.

C) the vertical rod advance of beam lower bolster support is arranged along the beam axis direction; The vertical rod transfer is arranged to bilateral symmetry centered by center line at the bottom of beam, and the outermost vertical rod is not more than 150mm apart from beam side distance; Be located at the adjustable base at falsework bottom of upright rod or top, its screw mandrel external diameter is not less than 36mm, and extension elongation is no more than 200mm; When falsework is set up under beam laterally horizon bar stretch in the falsework of beam biside plate and be no less than two vertical rods, and with the vertical rod snapping; Falsework application rigid connecting tube in swimming hall carries out anchoring in horizontal enhancement Layer position and frame column; Go up most one cross bar and be not more than 400mm from top template distance; The vertical rod spreading adopts docking, and every bottom of upright rod all arranges chock or scaffold floor; Falsework four limits with middle together with 4～6 row's vertical rod settings vertical bridging, by the end to top, arranged continuously; The falsework two ends start every 2～4 steps, horizontal cross brace to be set downwards from top layer every 4～6 row's vertical rods with middle; The falsework top arranges horizontal enhancement Layer with bottom: with horizontal brace, with "the" shape, horizontal cross brace is connected, horizontal brace width is not less than 3m; Setting up steel pipe framed bent in process presses closer tightly with concrete column, the table of having built; Support system: under beam under main joist steel pipe and plate framed bent be linked to be integral body.

Claims (1)

1. a swimming hall raising-plate high-supported formwork job practices, is characterized in that: comprise the following steps:

(1) formwork bracing system adopts φ 48 * 3.0 fastener type steel pipe scaffolds:

At the bottom of beam, the steel pipe framed bent is set up: vertical rod is 600mm along beam span direction spacing, and at the bottom of beam, the load-bearing vertical rod is 3, and little cross bar spacing is 300mm, and the scaffold step pitch is 600mm, 8.4 meters of scaffold building height; The steel pipe main joist is adopted at steel pipe framed bent top, wooden a tree, used in making timber for boats joist, and upper berth overlay film composite board forms large beam bottom board; Beam bottom mother plate adopts 18 thick overlay film multi-plywoods, and the primary and secondary keel all adopt 50 * 100mm flitch; Large beam side panel also adopts the overlay film multi-plywood, and the back side adopts the elongated vertical wood of 50 * 100mm stupefied, and wooden stupefied spacing: bed die is that 200mm, side form are 300mm; The split bolt steel pipe clamp, be not more than 550mm along the spacing of beam length direction, and vertical spacing is 300mm; Split bolt is selected φ 14 reinforcement fabrications, and bolt adopts totally four roads up and down;

At the bottom of plate, steel pipe is set up: vertical rod spacing in length and breadth is 1200mm, and the cross bar step pitch is not more than 1200mm, and plate bottom horizontal steel pipe spacing distance is 300mm, and adjustable U holder, 10.8 meters of vertical rod scaffolding heights are adopted in horizontal steel pipe and vertical rod; At the bottom of plate, adopt 50 * 80 joist flitch support, the length that the vertical rod upper end extend out to shuttering supporting point is not more than 300mm, and template die adopts 12 thick overlay film multi-plywoods;

(2) slab form construction

A) set up form

Roof plate template adopts the thick bamboo plywood of 12mm, adopts 50mm * 80mm flitch to do inferior stupefied, middle apart from 300mm, adopt Φ 48 * 3.0mm steel pipe to decide stupefied, spacing 1200mm, adopt the full hall of ф 48 * 3.0 fastener types steel pipe scaffold to do support system, vertical rod spacing in length and breadth is 1200mm, step pitch h=1.2m; The level liftoff 200mm of bar that sweeps the floor, crossbar is stretched out and is effluxed vertical rod 0.1m; Consider the stability of whole support system, at the 4.5m place, wall-connecting piece is set and is connected with agent structure, wall-connecting piece spacing 6.0m, the opposite face 0.9m that staggers arranges; The inside and outside facade of support surrounding is completely established bridging, and establish together every 4～6m at middle part; Frame bottom, top arrange one level and add layer;

B) set up order

Set up and frontly first swimming pool bottom is cleaned out, while setting up, the shelf bottom of upright rod adds base; Successively to vertical rod at the bottom of the setting of both sides, after bottom was fixing with the bar snapping of vertically sweeping the floor, the installing bar of laterally sweeping the floor, and fixing with vertical rod, after 3～4 vertical rods are holded up on every limit, installed first step vertical equity bar and transverse horizontal bar immediately from bight; Proofread and correct the vertical and horizon bar level of vertical rod, tighten fastening bolt by 45～55Nm moment, form the initial segment of framed bent, by above-mentioned requirements, extend and set up forward successively, until the friendship of first step frame has been enclosed; After handing over circle, wall-connecting piece is set; Second step, the 3rd step are set up in operation procedure and requirement by first step frame; Along with setting up process installing wall-connecting piece, be no more than 4 meters and establish plain net one;

(3) beam forms construction

A) set up form

With the full hall of floor bracing frame, set up vertical rod longitudinal pitch 600mm, vertical rod horizontal spacing 300mm, vertical rod step pitch 600mm; Sweep the floor bar apart from ground 200mm; Frame bottom, top, centre arrange one horizontal bracing diagonal as horizontal enhancement Layer every 4m;

At the bottom of beam, side form adopts the thick veneer of 18mm, the back side adopts the elongated vertical wood of 50mm * 100mm stupefied, wooden stupefied spacing: bed die is that 200mm, side form are 300mm; Formwork edge joint is less than 1.5mm, and vertical rod is 600mm along beam span direction spacing, and at the bottom of beam, the load-bearing vertical rod is 3, and little cross bar spacing is 300mm, and the scaffold step pitch is 600mm, 8.4 meters of scaffold building height; The steel pipe main joist is adopted at steel pipe framed bent top, wooden a tree, used in making timber for boats joist, and upper berth overlay film composite board forms large beam bottom board; The split bolt steel pipe clamp, be not more than 550mm along the spacing of beam length direction, and vertical spacing is 300mm, and split bolt is selected φ 14 reinforcement fabrications, and bolt adopts totally four roads up and down; Clamp: adopt φ 48 * 3.0 steel pipes;

B) beam bottom mother plate construction: by the absolute altitude that the design elevation adjustment is supported, the levelling of then mounting rail soffit formwork, and bracing wire, when beam base plate span is greater than and equals 4m, span centre beam bottom should be by the designing requirement arch camber, and during as the design no requirement (NR), springing height is 3/1000ths of beam span; During the primary-secondary beam handing-over, first girder arch camber, rear arch camber secondary beam.

C) the vertical rod advance of beam lower bolster support is arranged along the beam axis direction; The vertical rod transfer is arranged to bilateral symmetry centered by center line at the bottom of beam, and the outermost vertical rod is not more than 150mm apart from beam side distance; Be located at the adjustable base at falsework bottom of upright rod or top, its screw mandrel external diameter is not less than 36mm, and extension elongation is no more than 200mm; When falsework is set up under beam laterally horizon bar stretch in the falsework of beam biside plate and be no less than two vertical rods, and with the vertical rod snapping; Falsework application rigid connecting tube in swimming hall carries out anchoring in horizontal enhancement Layer position and frame column; Go up most one cross bar and be not more than 400mm from top template distance; The vertical rod spreading adopts docking, and every bottom of upright rod all arranges chock or scaffold floor; Falsework four limits with middle together with 4～6 row's vertical rod settings vertical bridging, by the end to top, arranged continuously; The falsework two ends start every 2～4 steps, horizontal cross brace to be set downwards from top layer every 4～6 row's vertical rods with middle; The falsework top arranges horizontal enhancement Layer with bottom: with horizontal brace, with "the" shape, horizontal cross brace is connected, horizontal brace width is not less than 3m; Setting up steel pipe framed bent in process presses closer tightly with concrete column, the table of having built; Support system: under beam under main joist steel pipe and plate framed bent be linked to be integral body.