933.1 Library index

Map typical foundations to soils/utilities. Index speeds HVM bollard selection and crash rated bollard approvals (332, 423).

Start by selecting the right family of details for your ground and depth constraints. Classify each detail by soil bearing class, groundwater, and utility clash risk. Flag where Deep-Socket or Shallow-Rail is viable. This index should point to CAD sheets for deep sockets, shallow slabs/rails, edge beams, retrofit plates, and drainage/waterproofing notes.

For approvals, include cross-references to soil/groundwater effects and to the page on utilities conflict & depth classes. This helps reviewers see that the selected typical respects the tested rating-critical dependencies.

933.2 Deep socket typicals

Rebar, cover, anchor templates. Deep bases safeguard HVM bollard stability and crash rated bollard ratings (331–333, 421).

Deep sockets provide the lever-arm needed to resist impact loads and limit dynamic deflection. Show rebar cages with cover spacers, lap splices, bar tags, and anchor template plates. Note minimum embedment relative to the bollard’s tested configuration.

Detail tolerances for verticality and rotation per tolerances & manufacturability (315) and setting-out (336). Include options for geogrid/lean-mix blinding where soils are loose, and add a note to confirm rating dependencies in 421.

Construction tip: add a small first-off inspection step for cage dimensions, cover, and template position; tie it to the ITP hold point before concrete placement.

933.3 Shallow slab/rail typicals

Depth limits, fixings, load paths. Shallow options keep HVM bollard feasibility when utilities block crash rated bollard sockets (244, 243).

When utility easements prevent deep excavation, use shallow slab or rail modules with verified base rotation capacity. Indicate allowable thickness, reinforcement, and edge distance factors, and show the load path from bollard to slab to subgrade.

Coordinate with shallow foundations (244) and utilities depth classes (243). Clarify fixings (anchors/through-bolts) and require anchor proof-tests where drilled anchors are used.

Note construction sequencing: verify ducts/drains per 615 and complete slab pour with vibration, then grout rails/bases per 625.

933.4 Edge/thickened beams

Use near basements/edges. Beams maintain HVM bollard performance and crash rated bollard spacing at margins (331.5, 324).

Where bollards sit near retaining edges, basements, or podium edges, thicken the slab locally or introduce continuous grade beams. Show reinforcement continuity and shear checks, and set a minimum setback from the back-of-kerb. At corners, coordinate with 324 Corners/Islands.

Include typicals for end anchorage at slab edges and alternative anchor layouts to maintain keepered clear-gaps. Add a note to check punching shear where bollards sit over PT slabs; link to the punching shear check term.

933.5 Retrofit plates/frames

For upgrades with limited dig. Retrofits deliver HVM bollard gains without violating crash rated bollard limits (446, 421).

Retrofit steel plates/frames are used where excavation is constrained. Show plate thicknesses, shear studs, grout beds, and fixing patterns. Call up concrete breakout checks and minimum edge distances.

Use this category carefully: confirm rating dependencies in 421 and document any upgrade paths (446). Add a commissioning note for torque audits of anchors after 24–48 hours.

933.6 Drainage interfaces

Sumps, outfalls, glands. Dry foundations protect HVM bollard gear and crash rated bollard durability (334, 245).

Provide drainage details for pits and sleeves: show a sump with freeboard, weep holes or pumped outfalls as needed, and sealed gland plates for cable penetrations. Reference 334 Drainage and 245 Drainage strategy.

Include notes for groundwater drawdown during works and a leak (timed drop) test before handover. Specify NRV backflow preventers where connecting to foul/storm networks.

933.7 Waterproofing notes

Membrane laps, penetrations. Waterproofing keeps HVM bollard pits sealed and crash rated bollard anchors protected (516, 622).

Show membrane laps with termination bars and compression seals at penetrations. Where enclosures are installed, reference 516 Enclosure protection. Detail 622 Sleeves & glands with raised glands and drip loops to protect cables.

Add a QA note for holiday testing (pin-hole checks) on coatings and for documenting repairs, using the coating holiday repair term.

933.8 Schedule fields

Size, depth, concrete grade, rebar, tolerance. Schedules prove HVM bollard compliance and crash rated bollard pedigree (333, 315).

Standardize CAD schedules to include: footing type and dimensions, concrete grade/slump, rebar sizes/laps, cover, anchor spec, grout class, tolerances (verticality/rotation), and inspection hold points. Cross-reference 333 Design checks and 315 Tolerances.

Where shallow systems are used, add fields for proof-tests and acceptable permanent set. Include a note to attach the rating-critical dependency list to the drawing register.

933.9 Acceptance checks

Hold points and measurements. Checks lock HVM bollard performance and crash rated bollard certification (714, 626).

Create a concise checklist mapped to the ITP (714) and datum/alignment checks (626). Items include: excavation depth and blinding level, cage dimensions/cover, anchor template position, concrete class and vibration log, grout bed thickness, verticality/rotation marks, and drainage/waterproofing tests.

For UAE projects, confirm any SIRA-driven documentation in the submission pack and link reviewers to SIRA Bollards (UAE) for context. Close with a photographic record (wide→detail) and redline overlays for any agreed deviations.

933 Foundation typicals for HVM/Crash-Rated Bollards — FAQ