Page 2
"Original document" produced and approved by ULMA Construcción. All rights reserved. Neither the whole nor any part of this document may be reproduced or transmitted in any form or by any means (electronic or mechanical), including photocopy, recording or any form of information storage or retrieval system without the written permission of ULMA Construcción.
BMK CLIMBING BRACKETS 1. PRODUCT DESCRIPTION The Climbing Bracket BMK system is mainly used for the construction of double-sided walls and piers. It is supported on anchor cones embedded in the concrete wall from a previous pouring stage. The system allows of two different stripping options: ...
Page 5
The working platforms provide a high level of safety due to their ample space to carry out all required construction works. Possibility to use two anchor types: DW15/M24 or DW20/M30. The basic range of Climbing Brackets BMK is as follows: Climbing Bracket BMK-240 Climbing Bracket BMK-170...
BMK CLIMBING BRACKETS 1.1. CLIMBING BRACKET BMK-240 This bracket system offers 2 configurations or rather different assembly types: the mobile configuration with roll- back carriage and the fixed configuration with tilt-back system Mobile configuration with Roll-Back Carriage: The formwork is joined to the main platform through the Roll-Back Carriage (1991444) which is operated by a rack and pinion mechanism to separate the panels from the wall at stripping.
BMK CLIMBING BRACKETS 1.2. CLIMBING BRACKET BMK-170 This climbing bracket only offers the fixed stripping configuration with which the formwork is detached from the wall by about 5 cm with the Tilt-Back MK-120 (1991467). The Connector MK Screw Waler Base (1991517) enables the panel height adjustment.
BMK CLIMBING BRACKETS As mentioned, the stripping system works with a rack 2.2. ITEMS DESCRIPTION and pinion mechanism assembled to the centre part 2.2.1. Climbing Bracket BMK-240 (1991424) of the horizontal beam of the climbing bracket. 1991456 The shown climbing bracket is equipped with the 1991457 mobile stripping configuration, that is, with roll-back...
Page 14
BMK CLIMBING BRACKETS 2.2.4. Climbing bracket BMK-170 (1991417) 2.2.3. BMK-240 Frame (1991425) This bracket can get equipped only with the fixed stripping configuration. The frame consists of standard walers MK-120 with The waler MK-120/1.625 is used as horizontal as well different MK accessories bolted and pinned to them.
Page 15
BMK CLIMBING BRACKETS 1990219 1991434 1991439 1991503 1991427 1 Gear MK (1991456) 1 Gear Shaft MK (1991457) 1991410 1 Spring Pin Ø5x30 DIN-1481 1991514 1990570 1990217 1991439 To ensure the correct working of the Roll-Back Carriage, the 1991487 Gear MK must be positioned at the place indicated in the assembly drawings of the Climbing Brackets.
Page 16
BMK CLIMBING BRACKETS The Tilt-Back MK-120 (1991467) is fastened to the bracket frame with Bolts M16x90 (0241690) and Locknuts M16 (0241608). Depending on the formwork type used, the Tilt-Back MK-120 is placed at different positions, the standard one is the position of the ENKOFORM VMK.
Page 17
It is usually fastened to the vertical waler as well as on the horizontal beam in the case of the climbing 6 Bolts M16x90 (0241690) bracket BMK-170 and the Tilt-Back MK-120 with 6 LockNuts M16 (0241608) BMK-240 and BMK-220 Frames.
Page 18
Item to which the beams or walers are assembled to form the platform. It is fastened to the waler with bolts M16. Head on horizontal beam of BMK-170 It is also used for inclined wall solutions. 2 Bolts M16x90 (0241690) 2.2.12.
Page 19
BMK CLIMBING BRACKETS 2.2.16. Bottom Support (1991487) This accessory is placed on the vertical waler of the main platform and on the waler MK used for the cone recovery platform. 2 Bolts M16x90 (0241690) 2 LockNuts M16 (0241608) 2 Bolts M16x90 (0241690) 2 LockNuts M16 (0241608) 2.2.18.
Page 20
BMK CLIMBING BRACKETS It is also used to connect the main platform to the cone recovery platform. Covers inclinations of ±10º - 20º - 30º 4 Bolts M16x90 (0241690) 4 LockNuts M16 (0241608) 2 Pins E20x70 (0252070) 2 Cotter Pins R/5 (0250000) 2.2.19.
Page 21
BMK CLIMBING BRACKETS 2.2.22. Waler Screw TR53x6 (0302020) 2.2.20. Lifting Hook MK (1991360) This part joins the vertical waler with the Roll-Back Item used to lift the structure. It is joined to the top Carriage and enables height adjustments. part of the vertical waler (waler MK) fastened with 2 Pins E20x70.
Page 22
BMK CLIMBING BRACKETS 2.2.23. Connector MK Screw Waler Base (1991517) This part connects the vertical waler with the Tilt- Back MK-120 (1991467). This way the panel height is adjusted with the screw jack. 3 Pins D20x100 (0335153) 3 Cotter pins R/5 (0250000) Waler MK-120 Screw Bracket Waler Screw TR53x6...
Page 23
BMK CLIMBING BRACKETS It is also used as diagonal for the hinged climbing bracket. Clamp M20x330 (0260001) 2 Pin D32x150 (0253215) 4 Cotter Pins R/5 (0250000) 2.2.26. Push-Pull Prop Shoe TR63 (0333055) and Push-Pull Prop E Shoe 2 D20x48 (1960545) 2.2.25.
Page 24
BMK CLIMBING BRACKETS Waler MK-120 To validate the use of these shoes, see the User's Guide - As part of concrete pouring, vertical waler and Push-Pull Prop Shoes. cone recovery platform: transversal beams on which the timber beams VM20 are placed parallel to the wall.
Page 25
BMK CLIMBING BRACKETS 2 Bolts M20x80 DIN931- 8.8 (0242080) 2 LockNuts M20 DIN985 - 8 (0242008) Waler MK-120 Profile MK-120 Waler MK-120/1.125 (1990209) 2.2.29. Timber Beams VM20 2.2.28. Profiles MK-120 Timber beams are used to deck all working The range of Profiles MK-120 can be used to replace platforms.
Page 26
BMK CLIMBING BRACKETS These are the item numbers and available lengths: 2.2.33. Adjustment Jack MK-120 (1991567) Item no. Length Item no. Length It is used to prevent any possible vertical movement 1940172 1.90m 1940146 3.60m 1950129 2.45m 1950112 3.90m of the formwork.
Page 27
BMK CLIMBING BRACKETS 2.2.36. Tube Ø48 Tube serving as handhold for the handrail system of the different platforms. Handrail Post 1.5 (2211156) Handrail Post 1.5 Wood (2211185) They following handrail post supports are available: These are the item numbers and available lengths: ...
Page 28
BMK CLIMBING BRACKETS Ladder C2.1 (0333008) Right Angle Swivel Coupler Ladder C3 Coupler 48/48 48/48 (0333009) (2125148) (2125147) 2.2.40. Ladder Protection (0333012) 2.2.39. Access Ladders between platforms Ladder Hatch (0333013) Ladders provide access to the different working When the height is above 2.5 m, Ladder Protection is platforms.
Page 29
BMK CLIMBING BRACKETS MK placed between two walers and fastened with bolts M16. 12 Bolts M16x90 (0241690) 12 LockNuts M16 (0241608) 2.2.42. Simple Bracing (0260505) It is used on the main platform to fix the ladder to 2.2.44.
Page 30
BMK CLIMBING BRACKETS Pin E20x70 (0252070) Cotter Pin R/5 (0250000) Wind Sling (0333018) 2.2.46. Anchorages The anchoring system for the climbing brackets consists of: Fixed Anchor DW20 Tie Rod Cone Climbing Ring Bolt Anchorage types DW15 as well as DW20 can be used with the system.
BMK CLIMBING BRACKETS 3. ASSEMBLY, USE AND DISMANTLING Allow for an adequately sized and level working area to ease the correct assembly of the climbing system. Subsequently, general guidelines for the assembly, use and dismantling of the system are described in detail. 3.1.
BMK CLIMBING BRACKETS 3.2. Instructions for the Climbing Bracket BMK system: Second pouring stage - first climbing stage 1. Hook the climbing bracket frames to a crane by positioning them vertically and parallel to each other at the ...
BMK CLIMBING BRACKETS 3.3. Instructions for the Climbing Bracket BMK system for the construction of hollow piers 1. Lift the structure and position it in the indicated location. 2. Place the Base Plates and Push-Pull Props to plumb the formwork panel. Do not let go of the panel with the crane until having anchored the formwork properly to the ground.
Page 38
BMK CLIMBING BRACKETS 15. Move the formwork and the inside platform up together to the next climbing stage by letting the gravity pawls snap into the box-outs. 16. Place cones and anchor brackets on the inside and outside formwork. Attach the ladder to the cone recovery platform.
BMK CLIMBING BRACKETS 3.4. PLATFORMS ASSEMBLY As mentioned in the first section "Product description", the climbing brackets BMK allow of the installation of 4 working platforms: main, concrete pouring, vertical waler and cone recovery platform. 3.4.1. Main platform Subsequently, some main platform assembly variations are shown: ...
Page 44
BMK CLIMBING BRACKETS Walers MK-120 (it is also possible to use DU-120 and DU-100): The corresponding walers are placed lengthwise and the timber beams VM20 perpendicular to them: this solution for climbing brackets BMK is adopted in cases in which the beams VM20, due to the size of the platform, are not strong enough to bear the acting loads, mainly in long cantilevers.
54 kN or 5400 kg respectively). The static test coefficient used is 1.5. Chain Square bar ID plate ID PLATE: CARGA MAX. DE USO MAX. WORKING LOAD ULMA C y E,S.Coop. MAX. TRAGFÄHIGKEIT Otadui,3 - Apdo.13 3100 kg (6800 lbs) 20560 OÑATI (SPAIN) ANGULO MAX.
Page 46
BMK CLIMBING BRACKETS Each lifting hook is fastened to the waler with two pins E20x70. The crane sling is connected directly to the chain shackle of the hook. 2 Pins E20x70 (0252070) 2 Cotter Pins R/5 (0250000) The slings attached to the lifting hook should not exceed the maximum angle of maximum 60º...
BMK CLIMBING BRACKETS 3.6. FORMWORK PANEL CONNECTION TO CLIMBING STRUCTURE The climbing brackets BMK also offer flexibility with regard to the use of different formwork products. The following panel types can be used. 3.6.1. ENKOFORM V-100 and ENKOFORM VMK panels The connection between the panel and the vertical walers is obtained with the Clamp M20x330 (2P-150x150) (0260001).
Page 48
BMK CLIMBING BRACKETS Waler Hook (1900448) 3.6.3. ORMA panel + horizontal waler (MK-120, DU-100 DU-120) In the case that horizontal walers are placed between the ORMA panel and the climbing structure, the connection with the vertical walers is obtained with Plate Clamps DU-DU (4 per each connection) fastened with bolts between each other and Adjustment Jacks MK-120.
Page 49
BMK CLIMBING BRACKETS 4 Plate Clamps DU-DU (0919259) 4 Bolts M16x70 DIN933-8.8 (0241670) 4 Nuts M16 DIN934-8 (0241600) 8 Washers A16 DIN125 (0241600) 2 Bolts M16x90 (0241690) 2 Nuts M16 (0241600) Adjustment Jack MK-120 (1991567) If a waler DU-100 is used as horizontal waler, the Waler Fixing Hook (0333004) can also be used for the connection between the vertical and the horizontal waler.
BMK CLIMBING BRACKETS 3.7. STRIPPING SYSTEM 3.7.1. Roll-Back Carriage If a working area is required between the wall and the formwork, the Climbing Brackets BMK-240 (1991424) CONCRETE POURING STRIPPING POSITION POSITION The stripping process comprises the following steps: 1.
Page 51
BMK CLIMBING BRACKETS For out-of-service cases and whenever moving the climbing bracket with crane, always set the Gear Locker MK to the blocked position. 2. Hit the wedge with a hammer to unblock the Roll-Back Carriage. Blocked Roll-Back Carriage Unblocked Roll-Back Carriage 3.
Page 52
BMK CLIMBING BRACKETS 4. Hit the wedge with a hammer to block the Roll-Back Carriage. Unblocked Roll-Back Carriage Blocked Roll-Back Carriage 3.7.2. Tilt-Back MK-120 The formwork is joined to the main platform through the Tilt-Back MK-120(1991467). The panels can be separated from the poured concrete wall to a distance of about 5 cm.
BMK CLIMBING BRACKETS 3.8. HEIGHT ADJUSTMENT It is often required to adjust the formwork height to correctly overlap the panel with the previous pouring stage. For such adjustment the Waler Screw TR53x6 (0302020) is used. 3.8.1. Roll-Back Carriage MK The height adjustment is obtained by turning the waler screw in one or the other direction.
Page 54
BMK CLIMBING BRACKETS 3.8.2. Tilt-Back MK-120 The height adjustment is obtained by turning the waler screw in one or the other direction. The adjustment range is approximately about some 120 mm. 1991517 15.7 CONNECTOR MK SCREW WALER BASE 1991570 13,5 WALER MK-120 SCREW BRACKET...
BMK CLIMBING BRACKETS 4. SOLUTIONS Subsequently, the most common solutions with the climbing brackets BMK are described. 4.1. STRAIGHT WALLS 4.1.1. Straight walls with Roll-Back Carriage at both sides of the wall In this configuration, the formwork of both wall sides is moved back to the maximum distance to ease steel reinforcement works.
Page 56
BMK CLIMBING BRACKETS Climbing Bracket BMK-240 4.1.2. Straight walls with Roll-Back Carriage at one side and Tilt_Back system at the other side of the wall In these configurations only the formwork of one side of the wall is stripped with roll-back carriages because the steel reinforcement works can be done from this side.
Page 57
BMK CLIMBING BRACKETS CONCRETE POURING POSITION STRIPPING POSITION Tilt-Back MK-120 BMK-240 Frame Climbing Bracket BMK-240...
Page 58
In this case, additionally to the installation of the tilt-back system at one side, also the size of the working platform of this side is reduced by using the Climbing Bracket BMK-170. This configuration is even simpler and cheaper than the previous ones.
Page 59
Therefore, a working area between wall and outside formwork is not necessary. Instead the inside formwork is removed and the steel reinforcement works are carried out from the inside. For these cases, the adequate configuration is with the Climbing Bracket BMK-170. CLIMBING BRACKET BMK-170...
BMK CLIMBING BRACKETS 4.2. INCLINED WALLS For ±15º inclined wall solutions, the Hinged BMK-240 Bracket (1991465) is used. In these cases should be used beam formworks “ENKOFORM”. Máximum angle on vertical ±15º For the cases that the angle between the horizontal and vertical beam is greater than 90º, the Push-Pull Prop TR63x6 2.04-2.2 (0333014) is used instead of Push-Pull Prop TR63x6 1.52-2.2 (1991514).
Page 61
BMK CLIMBING BRACKETS At the side of the overhang and slopes bigger than 5º the Roll Back Carriage BMK (1991444) and the Waler screw TR53x6 (0302020) should be replaced by the Inclined Tilt-Back MK-120 (1991463) the Assembly Rack MK-120 (1991450) and the Single Side Connector MK-120 (1991593).
The correct transmission of the anchor reactions to the concrete is responsibility of the customer. Only genuine components of ULMA may be used. Depending on the reactions in the anchors, DW20 or DW15 anchorages are used.
Page 64
BMK CLIMBING BRACKETS Anchorage DW 15 Climbing Ring DW15-NT20 Tie Rod DW15 Fixed Anchor Bolt M24x120 Cone DW15/M24 DW15 (0230005) (9053013) (1901080) The set assembled of fixed anchor, tie rod DW15 and cone DW15/M24 remains embedded in the concrete and the climbing ring DW15-NT20 is fastened to the set with the bolt M24x120.
Page 65
BMK CLIMBING BRACKETS Anchorage DW 20 Climbing Ring NT 20 (0238043) Tie Rod DW20 Bolt M30x130 Fixed Anchor Cone DW20/M30 (0243013) DW20 (0238025) (0238050) The set assembled of fixed anchor, tie rod DW20 and cone DW20/M30 remains embedded in the concrete and the climbing ring NT20 is fastened to the set with the bolt M30x130.
Page 66
BMK CLIMBING BRACKETS 4.4.1. Drilling ORMA panel board The shuttering face is drilled at the required position and dimension, d = 25 mm. Cone DW15/M24, tie rod DW15 and fixed anchor are placed on the shuttering face and fastened with the Cone-Waler Tie 90. The Tie passes through the gap between the vertical waler profiles MK-120 and is fastened with the plate nut of the tie.
Page 67
BMK CLIMBING BRACKETS The formwork is removed from the concrete by reclining the panel. With the positioner spanner, the cone positioner is removed from the cone Special care has to be taken when tightening the bolts as well as the tie rods and the fixed anchors to ensure the effective transmission of loads from the structure to the concrete.
BMK CLIMBING BRACKETS 5. SYSTEM PROPERTIES 5.1. MAXIMUM SIZE OF FORMWORK PANEL The system is designed to work under the following conditions: Working Out-of-service (kN/m2) (kN/m2) Concrete Pouring 0.75 Platform Vertical Waler 0.75 Platform Main platform Cone Recovery 0.75 Platform Wind Load...
BMK CLIMBING BRACKETS HEIGHT-WIDTH LIMITS OF FORMWORK PANEL FOR THE CLIMBING BRACKET BMK-240 Formwork panel height (m) 5.2. LIMITS OF ANCHORAGES For each application, the loads to be borne by the anchors must be analysed individually. These depend on the self- weight, the live loads and the wind loads.
BMK CLIMBING BRACKETS 6.2. MAXIMUM WORKING LOADS 6. TERMS AND CONDITIONS OF According to the load case, some maximum load conditions are specified to which the system can be submitted. In each load case, permanent loads equal for all load The general terms and conditions of use can cases and variable loads differing according to the vary.
Breathing mask In the case of doubt or lack of information, please o Safety harness contact the Technical Department of ULMA. Travel sequences of the climbing system are carried out under the supervision of the person in-charge of the installation.
Page 72
The entire structure with its components must get from the wall) with the roll-back carriage. assembled according to the instructions and o Plumb the formwork panel with the push- assembly drawings provided by ULMA. All bolts, pull prop. connections, tie rods, pins, etc. must be assembled correctly.
Page 73
Only genuine appliances with marking ULMA components of ULMA may be used to support and Construcción anchor the climbing system. ULMA cannot be held responsible for the use of material supplied by Before each use, the condition of the lifting third parties.
BMK CLIMBING BRACKETS 7. Legal references 7.1. LEGAL REFERENCES Council Directive 89/391/EEC of 12 June 1989 on the introduction of measures to encourage improvements in the safety and health of workers at work Council Directive 89/654/EEC of 30 November 1989 on the minimum safety and health requirements for the workplace ...
Page 76
EUROPE Slovac Republic Chile Poland Spain ULMA Chile - Andamios y ULMA Construccion SK, s.r.o. ULMA contruccion Polska S.A. BRATISLAVA Moldajes, S.A. ULMA C y E, S. Coop. WARSAW SANTIAGO www.ulma-c.sk www.ulma-c.es www.ulma-c.pl www.ulma-c.cl Romania Canary Islands Branch EAST REGION North Branch GÜIMAR (Tenerife)
Need help?
Do you have a question about the BMK-170 and is the answer not in the manual?
Questions and answers